CVE-2021-3712

一、漏洞信息
 漏洞编号：[CVE-2021-3712](https://nvd.nist.gov/vuln/detail/CVE-2021-3712)
 漏洞归属组件：[edk2](https://gitee.com/src-openeuler/edk2)
 漏洞归属的版本：202002,202011,202308
 CVSS V3.0分值：
  BaseScore：7.4 High
  Vector：CVSS：3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H
 漏洞简述：
  ASN.1 strings are represented internally within OpenSSL as an ASN1_STRING structure which contains a buffer holding the string data and a field holding the buffer length. This contrasts with normal C strings which are repesented as a buffer for the string data which is terminated with a NUL (0) byte. Although not a strict requirement, ASN.1 strings that are parsed using OpenSSL s own  d2i  functions (and other similar parsing functions) as well as any string whose value has been set with the ASN1_STRING_set() function will additionally NUL terminate the byte array in the ASN1_STRING structure. However, it is possible for applications to directly construct valid ASN1_STRING structures which do not NUL terminate the byte array by directly setting the  data  and  length  fields in the ASN1_STRING array. This can also happen by using the ASN1_STRING_set0() function. Numerous OpenSSL functions that print ASN.1 data have been found to assume that the ASN1_STRING byte array will be NUL terminated, even though this is not guaranteed for strings that have been directly constructed. Where an application requests an ASN.1 structure to be printed, and where that ASN.1 structure contains ASN1_STRINGs that have been directly constructed by the application without NUL terminating the  data  field, then a read buffer overrun can occur. The same thing can also occur during name constraints processing of certificates (for example if a certificate has been directly constructed by the application instead of loading it via the OpenSSL parsing functions, and the certificate contains non NUL terminated ASN1_STRING structures). It can also occur in the X509_get1_email(), X509_REQ_get1_email() and X509_get1_ocsp() functions. If a malicious actor can cause an application to directly construct an ASN1_STRING and then process it through one of the affected OpenSSL functions then this issue could be hit. This might result in a crash (causing a Denial of Service attack). It could also result in the disclosure of private memory contents (such as private keys, or sensitive plaintext). Fixed in OpenSSL 1.1.1l (Affected 1.1.1-1.1.1k). Fixed in OpenSSL 1.0.2za (Affected 1.0.2-1.0.2y).
 漏洞公开时间：2021-08-24 23:15:09
 漏洞创建时间：2024-08-20 19:54:09
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2021-3712
<details>
<summary>更多参考(点击展开)</summary>

| 参考来源 | 参考链接 | 来源链接 |
| ------- | -------- | -------- |
| openssl-security.openssl.org | http://www.openwall.com/lists/oss-security/2021/08/26/2 |  |
| openssl-security.openssl.org | https://cert-portal.siemens.com/productcert/pdf/ssa-244969.pdf |  |
| openssl-security.openssl.org | https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf |  |
| openssl-security.openssl.org | https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=94d23fcff9b2a7a8368dfe52214d5c2569882c11 |  |
| openssl-security.openssl.org | https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=ccb0a11145ee72b042d10593a64eaf9e8a55ec12 |  |
| openssl-security.openssl.org | https://kc.mcafee.com/corporate/index?page=content&id=SB10366 |  |
| openssl-security.openssl.org | https://lists.apache.org/thread.html/r18995de860f0e63635f3008fd2a6aca82394249476d21691e7c59c9e%40%3Cdev.tomcat.apache.org%3E |  |
| openssl-security.openssl.org | https://lists.apache.org/thread.html/rad5d9f83f0d11fb3f8bb148d179b8a9ad7c6a17f18d70e5805a713d1%40%3Cdev.tomcat.apache.org%3E |  |
| openssl-security.openssl.org | https://lists.debian.org/debian-lts-announce/2021/09/msg00014.html |  |
| openssl-security.openssl.org | https://lists.debian.org/debian-lts-announce/2021/09/msg00021.html |  |
| openssl-security.openssl.org | https://security.gentoo.org/glsa/202209-02 |  |
| openssl-security.openssl.org | https://security.gentoo.org/glsa/202210-02 |  |
| openssl-security.openssl.org | https://security.netapp.com/advisory/ntap-20210827-0010/ |  |
| openssl-security.openssl.org | https://security.netapp.com/advisory/ntap-20240621-0006/ |  |
| openssl-security.openssl.org | https://www.debian.org/security/2021/dsa-4963 |  |
| openssl-security.openssl.org | https://www.openssl.org/news/secadv/20210824.txt |  |
| openssl-security.openssl.org | https://www.oracle.com/security-alerts/cpuapr2022.html |  |
| openssl-security.openssl.org | https://www.oracle.com/security-alerts/cpujan2022.html |  |
| openssl-security.openssl.org | https://www.oracle.com/security-alerts/cpuoct2021.html |  |
| openssl-security.openssl.org | https://www.tenable.com/security/tns-2021-16 |  |
| openssl-security.openssl.org | https://www.tenable.com/security/tns-2022-02 |  |
| redhat_bugzilla | https://github.com/openssl/openssl/commit/94d23fcff9b2a7a8368dfe52214d5c2569882c11 | https://bugzilla.redhat.com/show_bug.cgi?id=1995634 |
| redhat_bugzilla | https://github.com/openssl/openssl/commit/2d0e5d4a4a5d4332325b5e5cea492fad2be633e1 | https://bugzilla.redhat.com/show_bug.cgi?id=1995634 |
| redhat_bugzilla | https://github.com/openssl/openssl/commit/bb4d2ed4091408404e18b3326e3df67848ef63d0 | https://bugzilla.redhat.com/show_bug.cgi?id=1995634 |
| redhat_bugzilla | https://github.com/openssl/openssl/commit/4de66925203ca99189c842136ec4a623137ea447 | https://bugzilla.redhat.com/show_bug.cgi?id=1995634 |
| redhat_bugzilla | https://github.com/openssl/openssl/commit/8393de42498f8be75cf0353f5c9f906a43a748d2 | https://bugzilla.redhat.com/show_bug.cgi?id=1995634 |
| redhat_bugzilla | https://github.com/openssl/openssl/commit/23446958685a593d4d9434475734b99138902ed2 | https://bugzilla.redhat.com/show_bug.cgi?id=1995634 |
| redhat_bugzilla | https://github.com/openssl/openssl/commit/5f54e57406ca17731b9ade3afd561d3c652e07f2 | https://bugzilla.redhat.com/show_bug.cgi?id=1995634 |
| redhat_bugzilla | https://github.com/openssl/openssl/commit/d9d838ddc0ed083fb4c26dd067e71aad7c65ad16 | https://bugzilla.redhat.com/show_bug.cgi?id=1995634 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2021:4613 | https://bugzilla.redhat.com/show_bug.cgi?id=1995634 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2021:4614 | https://bugzilla.redhat.com/show_bug.cgi?id=1995634 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2021:4618 | https://bugzilla.redhat.com/show_bug.cgi?id=1995634 |
| redhat_bugzilla | https://access.redhat.com/security/cve/cve-2021-3712 | https://bugzilla.redhat.com/show_bug.cgi?id=1995634 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2021:5226 | https://bugzilla.redhat.com/show_bug.cgi?id=1995634 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2022:0064 | https://bugzilla.redhat.com/show_bug.cgi?id=1995634 |
| ubuntu | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3712 | https://ubuntu.com/security/CVE-2021-3712 |
| ubuntu | https://www.openssl.org/news/secadv/20210824.txt | https://ubuntu.com/security/CVE-2021-3712 |
| ubuntu | https://ubuntu.com/security/notices/USN-5051-1 | https://ubuntu.com/security/CVE-2021-3712 |
| ubuntu | https://ubuntu.com/security/notices/USN-5051-2 | https://ubuntu.com/security/CVE-2021-3712 |
| ubuntu | https://ubuntu.com/security/notices/USN-5051-3 | https://ubuntu.com/security/CVE-2021-3712 |
| ubuntu | https://ubuntu.com/security/notices/USN-5051-4 (regression only in trusty/esm) | https://ubuntu.com/security/CVE-2021-3712 |
| ubuntu | https://ubuntu.com/security/notices/USN-5088-1 | https://ubuntu.com/security/CVE-2021-3712 |
| ubuntu | https://nvd.nist.gov/vuln/detail/CVE-2021-3712 | https://ubuntu.com/security/CVE-2021-3712 |
| ubuntu | https://launchpad.net/bugs/cve/CVE-2021-3712 | https://ubuntu.com/security/CVE-2021-3712 |
| ubuntu | https://security-tracker.debian.org/tracker/CVE-2021-3712 | https://ubuntu.com/security/CVE-2021-3712 |
| debian |  | https://security-tracker.debian.org/tracker/CVE-2021-3712 |
| oracle |  | https://www.oracle.com/security-alerts/cpuapr2022.html |
| openssl |  | https://www.openssl.org/news/secadv/20210824.txt |
| gentoo |  | https://security.gentoo.org/glsa/202209-02 |
| anolis |  | https://anas.openanolis.cn/cves/detail/CVE-2021-3712 |
| cve_search |  | https://www.openssl.org/news/secadv/20210824.txt |
| cve_search |  | https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=94d23fcff9b2a7a8368dfe52214d5c2569882c11 |
| cve_search |  | https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=ccb0a11145ee72b042d10593a64eaf9e8a55ec12 |
| cve_search |  | https://www.debian.org/security/2021/dsa-4963 |
| cve_search |  | https://lists.apache.org/thread.html/r18995de860f0e63635f3008fd2a6aca82394249476d21691e7c59c9e@%3Cdev.tomcat.apache.org%3E |
| cve_search |  | http://www.openwall.com/lists/oss-security/2021/08/26/2 |
| cve_search |  | https://lists.apache.org/thread.html/rad5d9f83f0d11fb3f8bb148d179b8a9ad7c6a17f18d70e5805a713d1@%3Cdev.tomcat.apache.org%3E |
| cve_search |  | https://security.netapp.com/advisory/ntap-20210827-0010/ |
| cve_search |  | https://www.tenable.com/security/tns-2021-16 |
| cve_search |  | https://lists.debian.org/debian-lts-announce/2021/09/msg00014.html |
| cve_search |  | https://lists.debian.org/debian-lts-announce/2021/09/msg00021.html |
| cve_search |  | https://www.oracle.com/security-alerts/cpuoct2021.html |
| cve_search |  | https://kc.mcafee.com/corporate/index?page=content&id=SB10366 |
| cve_search |  | https://www.tenable.com/security/tns-2022-02 |
| cve_search |  | https://www.oracle.com/security-alerts/cpujan2022.html |
| cve_search |  | https://cert-portal.siemens.com/productcert/pdf/ssa-244969.pdf |
| cve_search |  | https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf |
| cve_search |  | https://www.oracle.com/security-alerts/cpuapr2022.html |
| cve_search |  | https://security.gentoo.org/glsa/202209-02 |
| github_advisory | https://www.oracle.com/security-alerts/cpuoct2021.html | https://github.com/advisories/GHSA-q9wj-f4qw-6vfj |
| github_advisory | https://lists.debian.org/debian-lts-announce/2021/09/msg00014.html | https://github.com/advisories/GHSA-q9wj-f4qw-6vfj |
| github_advisory | https://www.oracle.com/security-alerts/cpuapr2022.html | https://github.com/advisories/GHSA-q9wj-f4qw-6vfj |
| github_advisory | https://security.gentoo.org/glsa/202209-02 | https://github.com/advisories/GHSA-q9wj-f4qw-6vfj |
| github_advisory | https://www.debian.org/security/2021/dsa-4963 | https://github.com/advisories/GHSA-q9wj-f4qw-6vfj |
| github_advisory | https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf | https://github.com/advisories/GHSA-q9wj-f4qw-6vfj |
| github_advisory | https://kc.mcafee.com/corporate/index?page=content&id=SB10366 | https://github.com/advisories/GHSA-q9wj-f4qw-6vfj |
| github_advisory | https://nvd.nist.gov/vuln/detail/CVE-2021-3712 | https://github.com/advisories/GHSA-q9wj-f4qw-6vfj |
| github_advisory | https://lists.apache.org/thread.html/r18995de860f0e63635f3008fd2a6aca82394249476d21691e7c59c9e@%3Cdev.tomcat.apache.org%3E | https://github.com/advisories/GHSA-q9wj-f4qw-6vfj |
| github_advisory | https://cert-portal.siemens.com/productcert/pdf/ssa-244969.pdf | https://github.com/advisories/GHSA-q9wj-f4qw-6vfj |
| github_advisory | https://rustsec.org/advisories/RUSTSEC-2021-0098.html | https://github.com/advisories/GHSA-q9wj-f4qw-6vfj |
| github_advisory | https://www.oracle.com/security-alerts/cpujan2022.html | https://github.com/advisories/GHSA-q9wj-f4qw-6vfj |
| github_advisory | https://lists.apache.org/thread.html/rad5d9f83f0d11fb3f8bb148d179b8a9ad7c6a17f18d70e5805a713d1@%3Cdev.tomcat.apache.org%3E | https://github.com/advisories/GHSA-q9wj-f4qw-6vfj |
| github_advisory | https://security.netapp.com/advisory/ntap-20210827-0010/ | https://github.com/advisories/GHSA-q9wj-f4qw-6vfj |
| github_advisory | https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=ccb0a11145ee72b042d10593a64eaf9e8a55ec12 | https://github.com/advisories/GHSA-q9wj-f4qw-6vfj |
| github_advisory | https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=94d23fcff9b2a7a8368dfe52214d5c2569882c11 | https://github.com/advisories/GHSA-q9wj-f4qw-6vfj |
| github_advisory | https://www.openssl.org/news/secadv/20210824.txt | https://github.com/advisories/GHSA-q9wj-f4qw-6vfj |
| github_advisory | https://security.gentoo.org/glsa/202210-02 | https://github.com/advisories/GHSA-q9wj-f4qw-6vfj |
| github_advisory | https://lists.debian.org/debian-lts-announce/2021/09/msg00021.html | https://github.com/advisories/GHSA-q9wj-f4qw-6vfj |
| github_advisory | http://www.openwall.com/lists/oss-security/2021/08/26/2 | https://github.com/advisories/GHSA-q9wj-f4qw-6vfj |
| github_advisory | https://www.tenable.com/security/tns-2021-16 | https://github.com/advisories/GHSA-q9wj-f4qw-6vfj |
| github_advisory | https://www.tenable.com/security/tns-2022-02 | https://github.com/advisories/GHSA-q9wj-f4qw-6vfj |
| mageia |  | http://advisories.mageia.org/MGASA-2021-0429.html |
| freebsd | https://www.openssl.org/news/secadv/20210824.txt | https://www.freebsd.org/security/advisories/FreeBSD-SA-21:16.openssl.asc |
| freebsd | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3711 | https://www.freebsd.org/security/advisories/FreeBSD-SA-21:16.openssl.asc |
| freebsd | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3712 | https://www.freebsd.org/security/advisories/FreeBSD-SA-21:16.openssl.asc |
| freebsd | https://security.FreeBSD.org/advisories/FreeBSD-SA-21:16.openssl.asc | https://www.freebsd.org/security/advisories/FreeBSD-SA-21:16.openssl.asc |
| osv | https://security.gentoo.org/glsa/202209-02 | https://osv.dev/vulnerability/CVE-2021-3712 |
| osv | https://security.gentoo.org/glsa/202210-02 | https://osv.dev/vulnerability/CVE-2021-3712 |
| osv | https://security.netapp.com/advisory/ntap-20210827-0010/ | https://osv.dev/vulnerability/CVE-2021-3712 |
| osv | https://www.debian.org/security/2021/dsa-4963 | https://osv.dev/vulnerability/CVE-2021-3712 |

</details>

漏洞分析指导链接：
  https://gitee.com/openeuler/cve-manager/blob/master/cve-vulner-manager/doc/md/manual.md
 漏洞数据来源:
  openBrain开源漏洞感知系统
 漏洞补丁信息：
  <details>
<summary>详情(点击展开)</summary>

| 影响的包 | 修复版本 | 修复补丁 | 问题引入补丁 | 来源  |
| ------- | -------- | ------- | -------- | --------- |
|  |  | https://github.com/openssl/openssl/commit/94d23fcff9b2a7a8368dfe52214d5c2569882c11 |  | redhat_bugzilla |
|  |  | https://github.com/openssl/openssl/commit/2d0e5d4a4a5d4332325b5e5cea492fad2be633e1 |  | redhat_bugzilla |
|  |  | https://github.com/openssl/openssl/commit/bb4d2ed4091408404e18b3326e3df67848ef63d0 |  | redhat_bugzilla |
|  |  | https://github.com/openssl/openssl/commit/4de66925203ca99189c842136ec4a623137ea447 |  | redhat_bugzilla |
|  |  | https://github.com/openssl/openssl/commit/8393de42498f8be75cf0353f5c9f906a43a748d2 |  | redhat_bugzilla |
|  |  | https://github.com/openssl/openssl/commit/23446958685a593d4d9434475734b99138902ed2 |  | redhat_bugzilla |
|  |  | https://github.com/openssl/openssl/commit/5f54e57406ca17731b9ade3afd561d3c652e07f2 |  | redhat_bugzilla |
|  |  | https://github.com/openssl/openssl/commit/d9d838ddc0ed083fb4c26dd067e71aad7c65ad16 |  | redhat_bugzilla |
|  |  | https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=ccb0a11145ee72b042d10593a64eaf9e8a55ec12 |  | github_advisory |
|  |  | https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=94d23fcff9b2a7a8368dfe52214d5c2569882c11 |  | github_advisory |
|  |  | https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=94d23fcff9b2a7a8368dfe52214d5c2569882c11 |  | alpine |
|  |  | https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=ccb0a11145ee72b042d10593a64eaf9e8a55ec12 |  | alpine |
|  |  | http://www.openwall.com/lists/oss-security/2021/08/26/2 |  | nvd |
|  |  | https://cert-portal.siemens.com/productcert/pdf/ssa-244969.pdf |  | nvd |
|  |  | https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf |  | nvd |
|  |  | https://kc.mcafee.com/corporate/index?page=content&id=SB10366 |  | nvd |
|  |  | https://lists.debian.org/debian-lts-announce/2021/09/msg00014.html |  | nvd |
|  |  | https://lists.debian.org/debian-lts-announce/2021/09/msg00021.html |  | nvd |
|  |  | https://security.gentoo.org/glsa/202209-02 |  | nvd |
|  |  | https://security.gentoo.org/glsa/202210-02 |  | nvd |
|  |  | https://security.netapp.com/advisory/ntap-20210827-0010/ |  | nvd |
|  |  | https://www.debian.org/security/2021/dsa-4963 |  | nvd |
|  |  | https://www.openssl.org/news/secadv/20210824.txt |  | nvd |
|  |  | https://www.oracle.com/security-alerts/cpuapr2022.html |  | nvd |
|  |  | https://www.oracle.com/security-alerts/cpujan2022.html |  | nvd |
|  |  | https://www.oracle.com/security-alerts/cpuoct2021.html |  | nvd |
|  |  | https://www.tenable.com/security/tns-2021-16 |  | nvd |
|  |  | https://www.tenable.com/security/tns-2022-02 |  | nvd |
| openssl | 1.1.1l | https://github.com/openssl/openssl/commit/94d23fcff9b2a7a8368dfe52214d5c2569882c11 |  | openssl |
| openssl | 1.0.2za | https://github.com/openssl/openssl/commit/94d23fcff9b2a7a8368dfe52214d5c2569882c11 |  | openssl |
| openssl | 1.1.1l | https://github.com/openssl/openssl/commit/ccb0a11145ee72b042d10593a64eaf9e8a55ec12 |  | openssl |
| openssl | 1.0.2za | https://github.com/openssl/openssl/commit/ccb0a11145ee72b042d10593a64eaf9e8a55ec12 |  | openssl |
| edk2 |  | https://git.openssl.org/?p=openssl.git;a=commit;h=c5dc9ab965f2a69bca964c709e648158f3e4cd67 |  | ubuntu |

</details>

二、漏洞分析结构反馈
 影响性分析说明：
                    ASN.1 strings are represented internally within OpenSSL as an ASN1_STRING structure which contains a buffer holding the string data and a field holding the buffer length. This contrasts with normal C strings which are repesented as a buffer for the string data which is terminated with a NUL (0) byte. Although not a strict requirement, ASN.1 strings that are parsed using OpenSSL s own  d2i  functions (and other similar parsing functions) as well as any string whose value has been set with the ASN1_STRING_set() function will additionally NUL terminate the byte array in the ASN1_STRING structure. However, it is possible for applications to directly construct valid ASN1_STRING structures which do not NUL terminate the byte array by directly setting the  data  and  length  fields in the ASN1_STRING array. This can also happen by using the ASN1_STRING_set0() function. Numerous OpenSSL functions that print ASN.1 data have been found to assume that the ASN1_STRING byte array will be NUL terminated, even though this is not guaranteed for strings that have been directly constructed. Where an application requests an ASN.1 structure to be printed, and where that ASN.1 structure contains ASN1_STRINGs that have been directly constructed by the application without NUL terminating the  data  field, then a read buffer overrun can occur. The same thing can also occur during name constraints processing of certificates (for example if a certificate has been directly constructed by the application instead of loading it via the OpenSSL parsing functions, and the certificate contains non NUL terminated ASN1_STRING structures). It can also occur in the X509_get1_email(), X509_REQ_get1_email() and X509_get1_ocsp() functions. If a malicious actor can cause an application to directly construct an ASN1_STRING and then process it through one of the affected OpenSSL functions then this issue could be hit. This might result in a crash (causing a Denial of Service attack).         
 openEuler评分：
  7.4
 Vector：CVSS：3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H
 受影响版本排查(受影响/不受影响)：
  1.openEuler-20.03-LTS-SP4(202002):受影响
2.openEuler-22.03-LTS-SP1(202011):受影响
3.openEuler-22.03-LTS-SP3(202011):受影响
4.openEuler-22.03-LTS-SP4(202011):受影响
5.master(202308):不受影响
6.openEuler-24.03-LTS(202308):不受影响
7.openEuler-24.03-LTS-Next(202308):不受影响

修复是否涉及abi变化(是/否)：
  1.master(202308):否
2.openEuler-20.03-LTS-SP4(202002):否
3.openEuler-22.03-LTS-SP1(202011):否
4.openEuler-22.03-LTS-SP3(202011):否
5.openEuler-22.03-LTS-SP4(202011):否
6.openEuler-24.03-LTS(202308):否
7.openEuler-24.03-LTS-Next(202308):否

三、漏洞修复
安全公告链接：https://www.openeuler.org/zh/security/safety-bulletin/detail/?id=openEuler-SA-2024-2095

src-openEuler/edk2
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