CVE-2023-1998

一、漏洞信息
漏洞编号：CVE-2023-1998
漏洞归属组件：kernel
漏洞归属的版本：4.19.140,4.19.194,4.19.90,5.10.0,6.1.0,6.1.14,6.1.19,6.1.5,6.1.6,6.1.8
CVSS V3.0分值：
BaseScore：5.6 Medium
Vector：CVSS：3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
漏洞简述：
The Linux kernel allows userspace processes to enable mitigations by calling prctl with PR_SET_SPECULATION_CTRL which disables the speculation feature as well as by using seccomp. We had noticed that on VMs of at least one major cloud provider, the kernel still left the victim process exposed to attacks in some cases even after enabling the spectre-BTI mitigation with prctl. The same behavior can be observed on a bare-metal machine when forcing the mitigation to IBRS on boot command line.This happened because when plain IBRS was enabled (not enhanced IBRS), the kernel had some logic that determined that STIBP was not needed. The IBRS bit implicitly protects against cross-thread branch target injection. However, with legacy IBRS, the IBRS bit was cleared on returning to userspace, due to performance reasons, which disabled the implicit STIBP and left userspace threads vulnerable to cross-thread branch target injection against which STIBP protects.
漏洞公开时间：2023-04-21 23:15:00
漏洞创建时间：2023-04-24 06:24:57
漏洞详情参考链接：
https://nvd.nist.gov/vuln/detail/CVE-2023-1998

更多参考(点击展开)

参考来源	参考链接	来源链接
nvd	https://kernel.dance/#6921ed9049bc7457f66c1596c5b78aec0dae4a9d
nvd	https://github.com/google/security-research/security/advisories/GHSA-mj4w-6495-6crx
nvd	https://github.com/torvalds/linux/commit/6921ed9049bc7457f66c1596c5b78aec0dae4a9d
nvd	https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html
nvd	https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html
redhat	https://access.redhat.com/security/cve/CVE-2023-1998
redhat_bugzilla	https://github.com/google/security-research/security/advisories/GHSA-mj4w-6495-6crx	https://bugzilla.redhat.com/show_bug.cgi?id=2187257
redhat_bugzilla	https://github.com/torvalds/linux/commit/6921ed9049bc7457f66c1596c5b78aec0dae4a9d	https://bugzilla.redhat.com/show_bug.cgi?id=2187257
debian		https://security-tracker.debian.org/tracker/CVE-2023-1998
cve_search		https://kernel.dance/#6921ed9049bc7457f66c1596c5b78aec0dae4a9d
cve_search		https://github.com/google/security-research/security/advisories/GHSA-mj4w-6495-6crx
cve_search		https://github.com/torvalds/linux/commit/6921ed9049bc7457f66c1596c5b78aec0dae4a9d
cve_search		https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html
cve_search		https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html
nvd	https://kernel.dance/#6921ed9049bc7457f66c1596c5b78aec0dae4a9d
nvd	https://github.com/google/security-research/security/advisories/GHSA-mj4w-6495-6crx
nvd	https://github.com/torvalds/linux/commit/6921ed9049bc7457f66c1596c5b78aec0dae4a9d
nvd	https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html

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/torvalds/linux/commit/6921ed9049bc7457f66c1596c5b78aec0dae4a9d		nvd
		https://github.com/torvalds/linux/commit/6921ed9049bc7457f66c1596c5b78aec0dae4a9d		redhat_bugzilla
linux_kernel	6.1.16	https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=08d87c87d6461d16827c9b88d84c48c26b6c994a	https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=7c693f54c873691a4b7da05c7e0f74e67745d144	linuxkernelcves
linux_kernel	6.2.3	https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=ead3c8e54d28fa1d5454b1f8a21b96b4a969b1cb	https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=7c693f54c873691a4b7da05c7e0f74e67745d144	linuxkernelcves

二、漏洞分析结构反馈
影响性分析说明：
No description is available for this CVE.
openEuler评分：
5.6
Vector：CVSS：2.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
受影响版本排查(受影响/不受影响)：
1.openEuler-22.03-LTS:受影响
2.openEuler-20.03-LTS-SP1(4.19.90):受影响
3.openEuler-20.03-LTS-SP3(4.19.90):受影响
4.openEuler-22.03-LTS-SP1:受影响

修复是否涉及abi变化(是/否)：
1.openEuler-22.03-LTS:否
2.openEuler-20.03-LTS-SP1(4.19.90):否
3.openEuler-20.03-LTS-SP3(4.19.90):否
4.openEuler-22.03-LTS-SP1:否

三、漏洞修复
安全公告链接：https://www.openeuler.org/zh/security/safety-bulletin/detail/?id=openEuler-SA-2023-1275

@YangYingliang ,@成坚 (CHENG Jian) ,@jiaoff ,@AlexGuo ,@hanjun-guo ,@woqidaideshi ,@Jackie Liu ,@Zhang Yi ,@colyli ,@ThunderTown ,@htforge ,@Chiqijun ,@冷嘲啊 ,@zhujianwei001 ,@kylin-mayukun ,@wangxiongfeng ,@Kefeng ,@SuperSix173 ,@WangShaoBo ,@Zheng Zucheng
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(4.19.90):
2.openEuler-20.03-LTS-SP3(4.19.90):
3.openEuler-22.03-LTS:
4.openEuler-22.03-LTS-SP1:

修复是否涉及abi变化(是/否)：
1.openEuler-20.03-LTS-SP1(4.19.90):
2.openEuler-20.03-LTS-SP3(4.19.90):
3.openEuler-22.03-LTS:
4.openEuler-22.03-LTS-SP1:

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: Kernel, and any of the maintainers: @YangYingliang , @成坚 (CHENG Jian) , @jiaoff , @AlexGuo , @hanjun-guo , @woqidaideshi , @Jackie Liu , @Zhang Yi , @colyli , @ThunderTown , @htforge , @Chiqijun , @冷嘲啊 , @zhujianwei001 , @kylin-mayukun , @wangxiongfeng , @Kefeng , @SuperSix173 , @WangShaoBo , @Zheng Zucheng , @陈结松 , @刘恺 , @whoisxxx , @koulihong , @柳歆 , @朱科潜 , @Xu Kuohai , @Lingmingqiang , @juntian , @OSSIM , @郑振鹏 , @刘勇强 , @yuzenghui , @Qiuuuuu , @xiehaocheng , @chen wei , @CTC-Xibo.Wang , @Jason Zeng , @Yuehaibing , @guzitao , @zhanghongchen , @lujialin , @苟浩 , @georgeguo , @毛泓博 , @AllenShi , @DuanqiangWen , @zhangjialin , @Wei Li , @sanglipeng , @Fred Kimmy , @谭小飞 , @tcc@hello , @李力军 , @hucz , @Yang Shen , @LiYihang , @wsoydl , @WangBoe2022 , @chenke , @young1c , @Xie XiuQi , @zhengzengkai

参考网址	关联pr	状态	补丁链接
https://nvd.nist.gov/vuln/detail/CVE-2023-1998
https://ubuntu.com/security/CVE-2023-1998	None	None	https://discourse.ubuntu.com/c/ubuntu-pro
https://www.opencve.io/cve/CVE-2023-1998
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2023-1998
https://security-tracker.debian.org/tracker/CVE-2023-1998	None	None	https://git.kernel.org/linus/6921ed9049bc7457f66c1596c5b78aec0dae4a9d
http://www.cnnvd.org.cn/web/vulnerability/queryLds.tag?qcvCnnvdid=CVE-2023-1998

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

@openeuler-sync-bot 请确认分支: openEuler-20.03-LTS-SP1,openEuler-20.03-LTS-SP3,openEuler-22.03-LTS,openEuler-22.03-LTS-SP1 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.

@zhangjialin 请确认分支: openEuler-20.03-LTS-SP1,openEuler-20.03-LTS-SP3,openEuler-22.03-LTS,openEuler-22.03-LTS-SP1 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.

CVE-2023-1998
I6V7TU

影响性分析说明：
No description is available for this CVE.

openEuler评分:(评分和向量)
5.6
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N

受影响版本排查(受影响/不受影响):
1.openEuler-22.03-LTS(5.10.0):受影响
2.openEuler-20.03-LTS-SP1(4.19.90):受影响
3.openEuler-20.03-LTS-SP3(4.19.194):受影响
4.openEuler-22.03-LTS-SP1:受影响

修复是否涉及abi变化(是/否)：
1.openEuler-22.03-LTS(5.10.0):否
2.openEuler-20.03-LTS-SP1(4.19.90):否
3.openEuler-20.03-LTS-SP3(4.19.194):否
4.openEuler-22.03-LTS-SP1:否

@YangYingliang 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	No description is available for this CVE.
已分析	2.openEulerScore	5.6
已分析	3.openEulerVector	AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
已分析	4.受影响版本排查	openEuler-22.03-LTS:受影响,openEuler-20.03-LTS-SP1:受影响,openEuler-20.03-LTS-SP3:受影响,openEuler-22.03-LTS-SP1:受影响
已分析	5.修复是否涉及abi变化	openEuler-22.03-LTS:否,openEuler-20.03-LTS-SP1:否,openEuler-20.03-LTS-SP3:否,openEuler-22.03-LTS-SP1: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.

@zhangchangzhong 请确认分支: openEuler-20.03-LTS-SP1,openEuler-20.03-LTS-SP3,openEuler-22.03-LTS,openEuler-22.03-LTS-SP1 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.

CVE-2023-1998
I6V7TU

影响性分析说明：
No description is available for this CVE.

openEuler评分:(评分和向量)
5.6
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N

受影响版本排查(受影响/不受影响):
1.openEuler-22.03-LTS(5.10.0):受影响
2.openEuler-20.03-LTS-SP1(4.19.90):受影响
3.openEuler-20.03-LTS-SP3(4.19.194):受影响
4.openEuler-22.03-LTS-SP1:受影响

修复是否涉及abi变化(是/否)：
1.openEuler-22.03-LTS(5.10.0):否
2.openEuler-20.03-LTS-SP1(4.19.90):否
3.openEuler-20.03-LTS-SP3(4.19.194):否
4.openEuler-22.03-LTS-SP1:否

@YangYingliang 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	No description is available for this CVE.
已分析	2.openEulerScore	5.6
已分析	3.openEulerVector	AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
已分析	4.受影响版本排查	openEuler-22.03-LTS:受影响,openEuler-20.03-LTS-SP1:受影响,openEuler-20.03-LTS-SP3:受影响,openEuler-22.03-LTS-SP1:受影响
已分析	5.修复是否涉及abi变化	openEuler-22.03-LTS:否,openEuler-20.03-LTS-SP1:否,openEuler-20.03-LTS-SP3:否,openEuler-22.03-LTS-SP1: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.

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CVE-2023-1998

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