CVE-2021-20298

一、漏洞信息
漏洞编号：CVE-2021-20298
漏洞归属组件：OpenEXR
漏洞归属的版本：2.2.0
CVSS V3.0分值：
BaseScore：7.5 High
Vector：CVSS：3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
漏洞简述：
A flaw was found in OpenEXR s B44Compressor. This flaw allows an attacker who can submit a crafted file to be processed by OpenEXR, to exhaust all memory accessible to the application. The highest threat from this vulnerability is to system availability.
漏洞公开时间：2022-08-24 00:15:00
漏洞创建时间：2022-08-24 01:12:46
漏洞详情参考链接：
https://nvd.nist.gov/vuln/detail/CVE-2021-20298

更多参考(点击展开)

参考来源	参考链接	来源链接
nvd	https://github.com/AcademySoftwareFoundation/openexr/commit/85fd638ae0d5fa132434f4cbf32590261c1dba97
nvd	https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=25913
nvd	https://bugzilla.redhat.com/show_bug.cgi?id=1939156
nvd	https://access.redhat.com/security/cve/CVE-2021-20298
nvd	https://github.com/AcademySoftwareFoundation/openexr/pull/843
nvd	https://lists.debian.org/debian-lts-announce/2022/12/msg00022.html
redhat	https://access.redhat.com/security/cve/CVE-2021-20298
suse_bugzilla	https://bugzilla.redhat.com/show_bug.cgi?id=1939156	https://bugzilla.suse.com/show_bug.cgi?id=1188460
suse_bugzilla	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-20298	https://bugzilla.suse.com/show_bug.cgi?id=1188460
suse_bugzilla	https://github.com/AcademySoftwareFoundation/openexr/commit/85fd638ae0d5fa132434f4cbf32590261c1dba97	https://bugzilla.suse.com/show_bug.cgi?id=1188460
redhat_bugzilla	https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=25913	https://bugzilla.redhat.com/show_bug.cgi?id=1939156
redhat_bugzilla	https://github.com/AcademySoftwareFoundation/openexr/commit/85fd638ae0d5fa132434f4cbf32590261c1dba97	https://bugzilla.redhat.com/show_bug.cgi?id=1939156
ubuntu	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20298	https://ubuntu.com/security/CVE-2021-20298
ubuntu	https://access.redhat.com/security/cve/CVE-2021-20298	https://ubuntu.com/security/CVE-2021-20298
ubuntu	https://nvd.nist.gov/vuln/detail/CVE-2021-20298	https://ubuntu.com/security/CVE-2021-20298
ubuntu	https://launchpad.net/bugs/cve/CVE-2021-20298	https://ubuntu.com/security/CVE-2021-20298
ubuntu	https://security-tracker.debian.org/tracker/CVE-2021-20298	https://ubuntu.com/security/CVE-2021-20298
ubuntu	https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=25913	https://ubuntu.com/security/CVE-2021-20298
debian		https://security-tracker.debian.org/tracker/CVE-2021-20298
cve_search		https://github.com/AcademySoftwareFoundation/openexr/commit/85fd638ae0d5fa132434f4cbf32590261c1dba97
cve_search		https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=25913
cve_search		https://bugzilla.redhat.com/show_bug.cgi?id=1939156
cve_search		https://access.redhat.com/security/cve/CVE-2021-20298
cve_search		https://github.com/AcademySoftwareFoundation/openexr/pull/843
cve_search		https://lists.debian.org/debian-lts-announce/2022/12/msg00022.html
nvd	https://lists.debian.org/debian-lts-announce/2022/12/msg00022.html
suse_bugzilla	https://bugzilla.redhat.com/show_bug.cgi?id=1939156
suse_bugzilla	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-20298
suse_bugzilla	https://github.com/AcademySoftwareFoundation/openexr/commit/85fd638ae0d5fa132434f4cbf32590261c1dba97
redhat_bugzilla	https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=25913
redhat_bugzilla	https://github.com/AcademySoftwareFoundation/openexr/commit/85fd638ae0d5fa132434f4cbf32590261c1dba97
redhat_bugzilla	https://bugzilla.redhat.com/show_bug.cgi?id=1939156
ubuntu	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20298
ubuntu	https://access.redhat.com/security/cve/CVE-2021-20298
ubuntu	https://nvd.nist.gov/vuln/detail/CVE-2021-20298
ubuntu	https://launchpad.net/bugs/cve/CVE-2021-20298
ubuntu	https://security-tracker.debian.org/tracker/CVE-2021-20298
ubuntu	https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=25913
debian	https://security-tracker.debian.org/tracker/CVE-2021-20298
nvd	https://github.com/AcademySoftwareFoundation/openexr/commit/85fd638ae0d5fa132434f4cbf32590261c1dba97
nvd	https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=25913
nvd	https://bugzilla.redhat.com/show_bug.cgi?id=1939156
nvd	https://access.redhat.com/security/cve/CVE-2021-20298
nvd	https://github.com/AcademySoftwareFoundation/openexr/pull/843

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：

详情(点击展开)

影响的包	修复版本	修复补丁	问题引入补丁	来源
		https://github.com/AcademySoftwareFoundation/openexr/commit/85fd638ae0d5fa132434f4cbf32590261c1dba97		nvd
		https://github.com/AcademySoftwareFoundation/openexr/pull/843		nvd
		https://github.com/AcademySoftwareFoundation/openexr/commit/85fd638ae0d5fa132434f4cbf32590261c1dba97		suse_bugzilla
		https://github.com/AcademySoftwareFoundation/openexr/commit/85fd638ae0d5fa132434f4cbf32590261c1dba97		redhat_bugzilla

二、漏洞分析结构反馈
影响性分析说明：
在OpenEXR的B44Compressor中发现了一个缺陷。此漏洞允许攻击者提交精心编制的文件以供 OpenEXR 处理，从而耗尽应用程序可访问的所有内存。此漏洞带来的最大威胁是系统可用性。
openEuler评分：
7.5
Vector：CVSS：3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
受影响版本排查(受影响/不受影响)：
1.openEuler-20.03-LTS-SP1(2.2.0):受影响
2.openEuler-20.03-LTS-SP3(2.2.0):受影响
3.openEuler-22.03-LTS(3.1.3):不受影响
4.openEuler-22.03-LTS-Next(3.1.3):不受影响
5.openEuler-22.09(3.1.5):不受影响
6.master(3.1.5):不受影响

修复是否涉及abi变化(是/否)：
1.openEuler-20.03-LTS-SP1(2.2.0):否
2.openEuler-20.03-LTS-SP3(2.2.0):否
3.openEuler-22.03-LTS(3.1.3):否
4.openEuler-22.03-LTS-Next(3.1.3):否
5.openEuler-22.09(3.1.5):否
6.master(3.1.5):否

三、漏洞修复
安全公告链接：https://www.openeuler.org/zh/security/safety-bulletin/detail/?id=openEuler-SA-2022-1885

@Charlie_Li ,@zhenyu ,@small_leek ,@mdche
issue处理注意事项:
1. 当前issue受影响的分支提交pr时, 须在pr描述中填写当前issue编号进行关联, 否则无法关闭当前issue;
2. 模板内容需要填写完整, 无论是受影响或者不受影响都需要填写完整内容,未引入的分支不需要填写, 否则无法关闭当前issue;
3. 以下为模板中需要填写完整的内容, 请复制到评论区回复, 注: 内容的标题名称(影响性分析说明, openEuler评分, 受影响版本排查(受影响/不受影响), 修复是否涉及abi变化(是/否))不能省略,省略后cve-manager将无法正常解析填写内容.

影响性分析说明:

openEuler评分: (评分和向量)

受影响版本排查(受影响/不受影响):
1.openEuler-20.03-LTS-SP1(2.2.0):
2.openEuler-20.03-LTS-SP3(2.2.0):
3.openEuler-22.03-LTS(2.2.0):
4.openEuler-22.09:

修复是否涉及abi变化(是/否)：
1.openEuler-20.03-LTS-SP1(2.2.0):
2.openEuler-20.03-LTS-SP3(2.2.0):
3.openEuler-22.03-LTS(2.2.0):
4.openEuler-22.09:

issue处理具体操作请参考:
https://gitee.com/openeuler/cve-manager/blob/master/cve-vulner-manager/doc/md/manual.md
pr关联issue具体操作请参考:
https://gitee.com/help/articles/4142

Hi openeuler-ci-bot, welcome to the openEuler Community.
I'm the Bot here serving you. You can find the instructions on how to interact with me at Here.
If you have any questions, please contact the SIG: Runtime, and any of the maintainers: @Charlie_Li , @zhenyu , @small_leek , @mdche

参考网址	关联pr	状态	补丁链接
https://www.opencve.io/cve/CVE-2021-20298
https://nvd.nist.gov/vuln/detail/CVE-2021-20298	None	None	https://github.com/AcademySoftwareFoundation/openexr/commit/85fd638ae0d5fa132434f4cbf32590261c1dba97
https://security-tracker.debian.org/tracker/CVE-2021-20298	None	None	https://github.com/AcademySoftwareFoundation/openexr/commit/85fd638ae0d5fa132434f4cbf32590261c1dba97 https://github.com/AcademySoftwareFoundation/openexr/commit/0c2b46f630a3b5f2f561c2849d047ee39f899179
https://ubuntu.com/security/CVE-2021-20298	None	None	https://github.com/AcademySoftwareFoundation/openexr/commit/85fd638ae0d5fa132434f4cbf32590261c1dba97 https://github.com/AcademySoftwareFoundation/openexr/commit/0c2b46f630a3b5f2f561c2849d047ee39f899179
http://www.cnnvd.org.cn/web/vulnerability/queryLds.tag?qcvCnnvdid=CVE-2021-20298

说明：补丁链接仅供初步排查参考，实际可用性请人工再次确认，补丁下载验证可使用CVE补丁工具。
若补丁不准确，烦请在此issue下评论 '/report-patch 参考网址补丁链接1,补丁链接2' 反馈正确信息，便于我们不断优化工具，不胜感激。
如 /report-patch https://security-tracker.debian.org/tracker/CVE-2021-3997 https://github.com/systemd/systemd/commit/5b1cf7a9be37e20133c0208005274ce4a5b5c6a1

@mayp 请确认分支: openEuler-20.03-LTS-SP1,openEuler-20.03-LTS-SP3,openEuler-22.03-LTS,openEuler-22.09 受影响/不受影响.
请确认分支信息是否填写完整,否则将无法关闭当前issue.

影响性分析说明：
在OpenEXR的B44Compressor中发现了一个缺陷。此漏洞允许攻击者提交精心编制的文件以供 OpenEXR 处理，从而耗尽应用程序可访问的所有内存。此漏洞带来的最大威胁是系统可用性。

openEuler评分：
7.5
CVSS：3.1/AV：N/AC：L/PR：N/UI：N/S：U/C：N/I：N/A：H

受影响版本排查(受影响/不受影响):
1.openEuler-20.03-LTS-SP1(2.2.0):受影响
2.openEuler-20.03-LTS-SP3(2.2.0):受影响
3.openEuler-22.03-LTS(3.1.5):不受影响
4.openEuler-22.03-LTS-Next(3.1.5):不受影响
5.openEuler-22.09(3.1.5):不受影响
6.master(3.1.5):不受影响

修复是否涉及abi变化(是/否)：
1.openEuler-20.03-LTS-SP1(2.2.0):否
2.openEuler-20.03-LTS-SP3(2.2.0):否
3.openEuler-22.03-LTS(3.1.5):否
4.openEuler-22.03-LTS-Next(3.1.5):否
5.openEuler-22.09(3.1.5):否
6.master(3.1.5):否

@Charlie_Li 经过 cve-manager 解析, 已分析的内容如下表所示:

状态	需分析	内容
已分析	1.影响性分析说明	在OpenEXR的B44Compressor中发现了一个缺陷。此漏洞允许攻击者提交精心编制的文件以供 OpenEXR 处理，从而耗尽应用程序可访问的所有内存。此漏洞带来的最大威胁是系统可用性。
已分析	2.openEulerScore	7.5
已分析	2.openEulerVector	AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
已分析	3.受影响版本排查	openEuler-20.03-LTS-SP1:受影响,openEuler-20.03-LTS-SP3:受影响,openEuler-22.03-LTS:不受影响,openEuler-22.03-LTS-Next:不受影响,openEuler-22.09:不受影响,master:不受影响
已分析	4.修复是否涉及abi变化	openEuler-20.03-LTS-SP1:否,openEuler-20.03-LTS-SP3:否,openEuler-22.03-LTS:否,openEuler-22.03-LTS-Next:否,openEuler-22.09:否,master:否

请确认分析内容的准确性, 确认无误后, 您可以进行后续步骤, 否则您可以继续分析.

该漏洞影响OpenEXR 2.2.0版本，20.03 SP1和20.03 SP3分支为2.2.0版本，受影响。
22.03、22.03-Next、22.09和master分支为3.1.5版本，且对比补丁修复内容已在源码中存在，故不涉及。

@Charlie_Li ,@zhenyu ,@small_leek ,@starlet_dx
关闭issue前,需要将受影响的分支在合并pr时关联上当前issue编号: #I5NSDR:CVE-2021-20298
受影响分支: openEuler-20.03-LTS-SP3
具体操作参考: https://gitee.com/help/articles/4142

该漏洞在22.03基线版本已修复，22.03、22.03-Next、22.09和master分支不受影响。

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