CVE-2024-26950

一、漏洞信息
漏洞编号：CVE-2024-26950
漏洞归属组件：kernel
漏洞归属的版本：4.19.140,4.19.194,4.19.90,5.10.0,6.1.0,6.1.14,6.1.19,6.1.5,6.1.6,6.1.8,6.4.0,6.6.0
CVSS V2.0分值：
BaseScore：0.0 Low
Vector：CVSS：2.0/
漏洞简述：
In the Linux kernel, the following vulnerability has been resolved:wireguard: netlink: access device through ctx instead of peerThe previous commit fixed a bug that led to a NULL peer->device beingdereferenced. It s actually easier and faster performance-wise toinstead get the device from ctx->wg. This semantically makes more sensetoo, since ctx->wg->peer_allowedips.seq is compared withctx->allowedips_seq, basing them both in ctx. This also acts as adefence in depth provision against freed peers.
漏洞公开时间：2024-05-01 14:15:11
漏洞创建时间：2024-05-01 15:49:51
漏洞详情参考链接：
https://nvd.nist.gov/vuln/detail/CVE-2024-26950

更多参考(点击展开)

参考来源	参考链接	来源链接
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/09c3fa70f65175861ca948cb2f0f791e666c90e5
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/493aa6bdcffd90a4f82aa614fe4f4db0641b4068
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/4be453271a882c8ebc28df3dbf9e4d95e6ac42f5
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/71cbd32e3db82ea4a74e3ef9aeeaa6971969c86f
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/93bcc1752c69bb309f4d8cfaf960ef1faeb34996
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/c991567e6c638079304cc15dff28748e4a3c4a37
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d44bd323d8bb8031eef4bdc44547925998a11e47
suse_bugzilla	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-26950	https://bugzilla.suse.com/show_bug.cgi?id=1223661
suse_bugzilla	https://www.cve.org/CVERecord?id=CVE-2024-26950	https://bugzilla.suse.com/show_bug.cgi?id=1223661
suse_bugzilla	https://git.kernel.org/stable/c/09c3fa70f65175861ca948cb2f0f791e666c90e5	https://bugzilla.suse.com/show_bug.cgi?id=1223661
suse_bugzilla	https://git.kernel.org/stable/c/493aa6bdcffd90a4f82aa614fe4f4db0641b4068	https://bugzilla.suse.com/show_bug.cgi?id=1223661
suse_bugzilla	https://git.kernel.org/stable/c/4be453271a882c8ebc28df3dbf9e4d95e6ac42f5	https://bugzilla.suse.com/show_bug.cgi?id=1223661
suse_bugzilla	https://git.kernel.org/stable/c/71cbd32e3db82ea4a74e3ef9aeeaa6971969c86f	https://bugzilla.suse.com/show_bug.cgi?id=1223661
suse_bugzilla	https://git.kernel.org/stable/c/93bcc1752c69bb309f4d8cfaf960ef1faeb34996	https://bugzilla.suse.com/show_bug.cgi?id=1223661
suse_bugzilla	https://git.kernel.org/stable/c/c991567e6c638079304cc15dff28748e4a3c4a37	https://bugzilla.suse.com/show_bug.cgi?id=1223661
suse_bugzilla	https://git.kernel.org/stable/c/d44bd323d8bb8031eef4bdc44547925998a11e47	https://bugzilla.suse.com/show_bug.cgi?id=1223661
suse_bugzilla	https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2024/CVE-2024-26950.mbox	https://bugzilla.suse.com/show_bug.cgi?id=1223661
suse_bugzilla	https://bugzilla.redhat.com/show_bug.cgi?id=2278200	https://bugzilla.suse.com/show_bug.cgi?id=1223661
redhat_bugzilla	https://lore.kernel.org/linux-cve-announce/2024050127-CVE-2024-26950-4424@gregkh/T	https://bugzilla.redhat.com/show_bug.cgi?id=2278200
ubuntu	https://www.cve.org/CVERecord?id=CVE-2024-26950	https://ubuntu.com/security/CVE-2024-26950
ubuntu	https://git.kernel.org/linus/71cbd32e3db82ea4a74e3ef9aeeaa6971969c86f (6.9-rc1)	https://ubuntu.com/security/CVE-2024-26950
ubuntu	https://git.kernel.org/stable/c/493aa6bdcffd90a4f82aa614fe4f4db0641b4068	https://ubuntu.com/security/CVE-2024-26950
ubuntu	https://git.kernel.org/stable/c/4be453271a882c8ebc28df3dbf9e4d95e6ac42f5	https://ubuntu.com/security/CVE-2024-26950
ubuntu	https://git.kernel.org/stable/c/09c3fa70f65175861ca948cb2f0f791e666c90e5	https://ubuntu.com/security/CVE-2024-26950
ubuntu	https://git.kernel.org/stable/c/c991567e6c638079304cc15dff28748e4a3c4a37	https://ubuntu.com/security/CVE-2024-26950
ubuntu	https://git.kernel.org/stable/c/93bcc1752c69bb309f4d8cfaf960ef1faeb34996	https://ubuntu.com/security/CVE-2024-26950
ubuntu	https://git.kernel.org/stable/c/d44bd323d8bb8031eef4bdc44547925998a11e47	https://ubuntu.com/security/CVE-2024-26950
ubuntu	https://git.kernel.org/stable/c/71cbd32e3db82ea4a74e3ef9aeeaa6971969c86f	https://ubuntu.com/security/CVE-2024-26950
ubuntu	https://nvd.nist.gov/vuln/detail/CVE-2024-26950	https://ubuntu.com/security/CVE-2024-26950
ubuntu	https://launchpad.net/bugs/cve/CVE-2024-26950	https://ubuntu.com/security/CVE-2024-26950
ubuntu	https://security-tracker.debian.org/tracker/CVE-2024-26950	https://ubuntu.com/security/CVE-2024-26950
debian		https://security-tracker.debian.org/tracker/CVE-2024-26950

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
linux		https://git.kernel.org/linus/71cbd32e3db82ea4a74e3ef9aeeaa6971969c86f	https://git.kernel.org/linus/e7096c131e5161fa3b8e52a650d7719d2857adfd	ubuntu

二、漏洞分析结构反馈
影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:wireguard: netlink: access device through ctx instead of peerThe previous commit fixed a bug that led to a NULL peer->device beingdereferenced. It s actually easier and faster performance-wise toinstead get the device from ctx->wg. This semantically makes more sensetoo, since ctx->wg->peer_allowedips.seq is compared withctx->allowedips_seq, basing them both in ctx. This also acts as adefence in depth provision against freed peers.
openEuler评分：
5.5
Vector：CVSS：2.0/AV:L/AC:L/PR:L/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-22.03-LTS(5.10.0):受影响
2.openEuler-22.03-LTS-SP1(5.10.0):受影响
3.openEuler-22.03-LTS-SP2(5.10.0):受影响
4.openEuler-22.03-LTS-SP3:受影响
5.openEuler-20.03-LTS-SP1(4.19.90):不受影响
6.openEuler-20.03-LTS-SP4:不受影响
7.openEuler-22.03-LTS-SP4:不受影响
8.master(6.1.0):不受影响
9.openEuler-22.03-LTS-Next(5.10.0):不受影响
10.openEuler-24.03-LTS(6.6.0):不受影响
11.openEuler-24.03-LTS-Next(6.6.0):不受影响

修复是否涉及abi变化(是/否)：
1.openEuler-20.03-LTS-SP1(4.19.90):否
2.openEuler-20.03-LTS-SP4:否
3.openEuler-22.03-LTS(5.10.0):否
4.openEuler-22.03-LTS-SP1(5.10.0):否
5.openEuler-22.03-LTS-SP2(5.10.0):否
6.openEuler-22.03-LTS-SP3:否
7.master(6.1.0):否
8.openEuler-22.03-LTS-Next(5.10.0):否
9.openEuler-24.03-LTS(6.6.0):否
10.openEuler-24.03-LTS-Next(6.6.0):否
11.openEuler-22.03-LTS-SP4:否

三、漏洞修复
安全公告链接：https://www.openeuler.org/zh/security/safety-bulletin/detail/?id=openEuler-SA-2024-1682

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.

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**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(6.1.0):
2.openEuler-20.03-LTS-SP1(4.19.90):
3.openEuler-20.03-LTS-SP4(4.19.90):
4.openEuler-22.03-LTS(5.10.0):
5.openEuler-22.03-LTS-Next(5.10.0):
6.openEuler-22.03-LTS-SP1(5.10.0):
7.openEuler-22.03-LTS-SP2(5.10.0):
8.openEuler-22.03-LTS-SP3(5.10.0):
9.openEuler-24.03-LTS:
10.openEuler-24.03-LTS-Next:

修复是否涉及abi变化(是/否)：
1.master(6.1.0):
2.openEuler-20.03-LTS-SP1(4.19.90):
3.openEuler-20.03-LTS-SP4(4.19.90):
4.openEuler-22.03-LTS(5.10.0):
5.openEuler-22.03-LTS-Next(5.10.0):
6.openEuler-22.03-LTS-SP1(5.10.0):
7.openEuler-22.03-LTS-SP2(5.10.0):
8.openEuler-22.03-LTS-SP3(5.10.0):
9.openEuler-24.03-LTS:
10.openEuler-24.03-LTS-Next:

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

参考网址	关联pr	状态	补丁链接
https://nvd.nist.gov/vuln/detail/CVE-2024-26950	None	None	https://git.kernel.org/stable/c/c991567e6c638079304cc15dff28748e4a3c4a37 https://git.kernel.org/stable/c/4be453271a882c8ebc28df3dbf9e4d95e6ac42f5 https://git.kernel.org/stable/c/93bcc1752c69bb309f4d8cfaf960ef1faeb34996 https://git.kernel.org/stable/c/71cbd32e3db82ea4a74e3ef9aeeaa6971969c86f https://git.kernel.org/stable/c/09c3fa70f65175861ca948cb2f0f791e666c90e5 https://git.kernel.org/stable/c/493aa6bdcffd90a4f82aa614fe4f4db0641b4068 https://git.kernel.org/stable/c/d44bd323d8bb8031eef4bdc44547925998a11e47
https://www.opencve.io/cve/CVE-2024-26950	None	None	https://git.kernel.org/stable/c/c991567e6c638079304cc15dff28748e4a3c4a37 https://git.kernel.org/stable/c/4be453271a882c8ebc28df3dbf9e4d95e6ac42f5 https://git.kernel.org/stable/c/93bcc1752c69bb309f4d8cfaf960ef1faeb34996 https://git.kernel.org/stable/c/71cbd32e3db82ea4a74e3ef9aeeaa6971969c86f https://git.kernel.org/stable/c/09c3fa70f65175861ca948cb2f0f791e666c90e5 https://git.kernel.org/stable/c/493aa6bdcffd90a4f82aa614fe4f4db0641b4068 https://git.kernel.org/stable/c/d44bd323d8bb8031eef4bdc44547925998a11e47
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2024-26950
https://security-tracker.debian.org/tracker/CVE-2024-26950	None	None	https://git.kernel.org/linus/71cbd32e3db82ea4a74e3ef9aeeaa6971969c86f

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

CVE-2024-26950

影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:

wireguard: netlink: access device through ctx instead of peer

The previous commit fixed a bug that led to a NULL peer->device being
dereferenced. It's actually easier and faster performance-wise to
instead get the device from ctx->wg. This semantically makes more sense
too, since ctx->wg->peer_allowedips.seq is compared with
ctx->allowedips_seq, basing them both in ctx. This also acts as a
defence in depth provision against freed peers.

openEuler评分:(评分和向量)
5.5
CVSS:3.1/AV:L/AC:L/PR:L/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:不受影响
2.openEuler-20.03-LTS-SP4:不受影响
3.openEuler-22.03-LTS:受影响
4.openEuler-22.03-LTS-SP1:受影响
5.openEuler-22.03-LTS-SP2:受影响
6.openEuler-22.03-LTS-SP3:受影响
7.openEuler-22.03-LTS-SP4:不受影响
8.master(6.1.0):不受影响
9.openEuler-22.03-LTS-Next:不受影响
10.openEuler-24.03-LTS:不受影响
11.openEuler-24.03-LTS-Next:不受影响

修复是否涉及abi变化(是/否)：
1.openEuler-20.03-LTS-SP1(4.19.90):否
2.openEuler-20.03-LTS-SP4:否
3.openEuler-22.03-LTS:否
4.openEuler-22.03-LTS-SP1:否
5.openEuler-22.03-LTS-SP2:否
6.openEuler-22.03-LTS-SP3:否
7.master(6.1.0):否
8.openEuler-22.03-LTS-Next:否
9.openEuler-24.03-LTS:否
10.openEuler-24.03-LTS-Next:否
11.openEuler-22.03-LTS-SP4:否

===========================================================

@ 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	In the Linux kernel, the following vulnerability has been resolved:wireguard: netlink: access device through ctx instead of peerThe previous commit fixed a bug that led to a NULL peer->device beingdereferenced. It's actually easier and faster performance-wise toinstead get the device from ctx->wg. This semantically makes more sensetoo, since ctx->wg->peer_allowedips.seq is compared withctx->allowedips_seq, basing them both in ctx. This also acts as adefence in depth provision against freed peers.
已分析	2.openEulerScore	5.5
已分析	3.openEulerVector	AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
已分析	4.受影响版本排查	openEuler-22.03-LTS:受影响,openEuler-22.03-LTS-SP1:受影响,openEuler-22.03-LTS-SP2:受影响,openEuler-22.03-LTS-SP3:受影响,openEuler-20.03-LTS-SP1:不受影响,openEuler-20.03-LTS-SP4:不受影响,openEuler-22.03-LTS-SP4:不受影响,master:不受影响,openEuler-22.03-LTS-Next:不受影响,openEuler-24.03-LTS:不受影响,openEuler-24.03-LTS-Next:不受影响
已分析	5.修复是否涉及abi变化	openEuler-20.03-LTS-SP1:否,openEuler-20.03-LTS-SP4:否,openEuler-22.03-LTS:否,openEuler-22.03-LTS-SP1:否,openEuler-22.03-LTS-SP2:否,openEuler-22.03-LTS-SP3:否,master:否,openEuler-22.03-LTS-Next:否,openEuler-24.03-LTS:否,openEuler-24.03-LTS-Next:否,openEuler-22.03-LTS-SP4: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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