CVE-2024-45491

一、漏洞信息
 漏洞编号：[CVE-2024-45491](https://nvd.nist.gov/vuln/detail/CVE-2024-45491)
 漏洞归属组件：[xmlrpc-c](https://gitee.com/src-openeuler/xmlrpc-c)
 漏洞归属的版本：1.51.06,1.51.08,1.54.06,1.59.02
 CVSS V3.0分值：
  BaseScore：9.8 Critical
  Vector：CVSS：3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
 漏洞简述：
  An issue was discovered in libexpat before 2.6.3. dtdCopy in xmlparse.c can have an integer overflow for nDefaultAtts on 32-bit platforms (where UINT_MAX equals SIZE_MAX).
 漏洞公开时间：2024-08-30 11:15:03
 漏洞创建时间：2024-09-06 04:43:30
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2024-45491
<details>
<summary>更多参考(点击展开)</summary>

| 参考来源 | 参考链接 | 来源链接 |
| ------- | -------- | -------- |
| cve.mitre.org | https://github.com/libexpat/libexpat/issues/888 |  |
| cve.mitre.org | https://github.com/libexpat/libexpat/pull/891 |  |
| suse_bugzilla | http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-45491 | https://bugzilla.suse.com/show_bug.cgi?id=1229931 |
| suse_bugzilla | https://www.cve.org/CVERecord?id=CVE-2024-45491 | https://bugzilla.suse.com/show_bug.cgi?id=1229931 |
| suse_bugzilla | https://github.com/libexpat/libexpat/issues/888 | https://bugzilla.suse.com/show_bug.cgi?id=1229931 |
| suse_bugzilla | https://github.com/libexpat/libexpat/pull/891 | https://bugzilla.suse.com/show_bug.cgi?id=1229931 |
| redhat_bugzilla | https://github.com/libexpat/libexpat/blob/R_2_6_3/expat/Changes | https://bugzilla.redhat.com/show_bug.cgi?id=2308616 |
| ubuntu | https://www.cve.org/CVERecord?id=CVE-2024-45491 | https://ubuntu.com/security/CVE-2024-45491 |
| ubuntu | https://github.com/libexpat/libexpat/pull/891 | https://ubuntu.com/security/CVE-2024-45491 |
| ubuntu | https://github.com/libexpat/libexpat/issues/888 | https://ubuntu.com/security/CVE-2024-45491 |
| ubuntu | https://ubuntu.com/security/notices/USN-7000-1 | https://ubuntu.com/security/CVE-2024-45491 |
| ubuntu | https://ubuntu.com/security/notices/USN-7001-1 | https://ubuntu.com/security/CVE-2024-45491 |
| ubuntu | https://nvd.nist.gov/vuln/detail/CVE-2024-45491 | https://ubuntu.com/security/CVE-2024-45491 |
| ubuntu | https://launchpad.net/bugs/cve/CVE-2024-45491 | https://ubuntu.com/security/CVE-2024-45491 |
| ubuntu | https://security-tracker.debian.org/tracker/CVE-2024-45491 | https://ubuntu.com/security/CVE-2024-45491 |
| ubuntu | http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1080150 | https://ubuntu.com/security/CVE-2024-45491 |
| debian |  | https://security-tracker.debian.org/tracker/CVE-2024-45491 |
| cve_search |  | https://github.com/libexpat/libexpat/pull/891 |
| cve_search |  | https://github.com/libexpat/libexpat/issues/888 |
| mageia |  | http://advisories.mageia.org/MGASA-2024-0294.html |
| amazon_linux_explore | https://access.redhat.com/security/cve/CVE-2024-45491 | https://explore.alas.aws.amazon.com/CVE-2024-45491.html |
| amazon_linux_explore | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-45491 | https://explore.alas.aws.amazon.com/CVE-2024-45491.html |

</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/libexpat/libexpat/pull/891 |  | cve.mitre.org |
|  |  | https://github.com/libexpat/libexpat/pull/891 |  | suse_bugzilla |
|  |  | https://github.com/libexpat/libexpat/pull/891 |  | ubuntu |
|  |  | https://github.com/libexpat/libexpat/issues/888 |  | nvd |
|  |  | https://github.com/libexpat/libexpat/pull/891 |  | nvd |

</details>

二、漏洞分析结构反馈
 影响性分析说明：
    libexpat的xmlparse.c代码中，dtdCopy接口中的nDefaultAtts变量在32位平台（UINT_MAX与SIZE_MAX相等）可能存在整型溢出问题，可能导致拒绝服务或恶意代码执行。该漏洞归属软件包为expat，xmlrpc-c内部在2001年为了用户使用方便拷贝了当时版本的expat源码并做了一些修改，对应代码在xmlrpc-c存在。 
 openEuler评分：
  9.8
 Vector：CVSS：3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
 受影响版本排查(受影响/不受影响)：
  1.master(1.59.02):受影响
2.openEuler-20.03-LTS-SP4(1.51.06):受影响
3.openEuler-22.03-LTS-SP1(1.51.08):受影响
4.openEuler-22.03-LTS-SP3(1.51.08):受影响
5.openEuler-22.03-LTS-SP4(1.51.08):受影响
6.openEuler-24.03-LTS(1.59.02):受影响
7.openEuler-24.03-LTS-Next(1.59.02):受影响

修复是否涉及abi变化(是/否)：
  1.master(1.59.02):否
2.openEuler-20.03-LTS-SP4(1.51.06):否
3.openEuler-22.03-LTS-SP1(1.51.08):否
4.openEuler-22.03-LTS-SP3(1.51.08):否
5.openEuler-22.03-LTS-SP4(1.51.08):否
6.openEuler-24.03-LTS(1.59.02):否
7.openEuler-24.03-LTS-Next(1.59.02):否

三、漏洞修复
安全公告链接：https://www.openeuler.org/zh/security/safety-bulletin/detail/?id=openEuler-SA-2024-2138

@MrRlu ,@zengwefeng ,@robertxw ,@sunsuwan ,@jiangheng12 ,@renmingshuai 
**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.master(1.59.02):
2.openEuler-20.03-LTS-SP4(1.51.06):
3.openEuler-22.03-LTS-SP1(1.51.08):
4.openEuler-22.03-LTS-SP3(1.51.08):
5.openEuler-22.03-LTS-SP4(1.51.08):
6.openEuler-24.03-LTS(1.59.02):
7.openEuler-24.03-LTS-Next(1.59.02):

修复是否涉及abi变化(是/否)：
1.master(1.59.02):
2.openEuler-20.03-LTS-SP4(1.51.06):
3.openEuler-22.03-LTS-SP1(1.51.08):
4.openEuler-22.03-LTS-SP3(1.51.08):
5.openEuler-22.03-LTS-SP4(1.51.08):
6.openEuler-24.03-LTS(1.59.02):
7.openEuler-24.03-LTS-Next(1.59.02):

-----------------------------------------------------------------------
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

<table><tr><th white-space: nowrap;>参考网址</th> <th white-space: nowrap;>关联pr</th> <th white-space: nowrap;>状态</th> <th white-space: nowrap;>补丁链接</th></tr><tr><td rowspan="1">https://nvd.nist.gov/vuln/detail/CVE-2024-45491</td><td>https://github.com/libexpat/libexpat/pull/891</td><td>closed</td><td><a href=https://github.com/libexpat/libexpat/commit/8e439a9947e9dc80a395c0c7456545d8d9d9e421>https://github.com/libexpat/libexpat/commit/8e439a9947e9dc80a395c0c7456545d8d9d9e421</a></td></tr><tr><td rowspan="1">https://www.opencve.io/cve/CVE-2024-45491</td><td>https://github.com/libexpat/libexpat/pull/891</td><td>closed</td><td><a href=https://github.com/libexpat/libexpat/commit/8e439a9947e9dc80a395c0c7456545d8d9d9e421>https://github.com/libexpat/libexpat/commit/8e439a9947e9dc80a395c0c7456545d8d9d9e421</a></td></tr><tr><td>https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2024-45491</td><td></td><td></td><td></td></tr><tr><td rowspan="1">https://security-tracker.debian.org/tracker/CVE-2024-45491</td><td>https://github.com/libexpat/libexpat/pull/891</td><td>closed</td><td><a href=https://github.com/libexpat/libexpat/commit/8e439a9947e9dc80a395c0c7456545d8d9d9e421>https://github.com/libexpat/libexpat/commit/8e439a9947e9dc80a395c0c7456545d8d9d9e421</a></td></tr></table>

> 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](https://gitee.com/openeuler/cve-manager/blob/master/cve-agency-manager/cve_tracking/README.md)。
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

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