一、漏洞信息
漏洞编号:CVE-2024-35841
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:net: tls, fix WARNIING in __sk_msg_freeA splice with MSG_SPLICE_PAGES will cause tls code to use thetls_sw_sendmsg_splice path in the TLS sendmsg code to move the userprovided pages from the msg into the msg_pl. This will loop over themsg until msg_pl is full, checked by sk_msg_full(msg_pl). The usercan also set the MORE flag to hint stack to delay sending until receivingmore pages and ideally a full buffer.If the user adds more pages to the msg than can fit in the msg_plscatterlist (MAX_MSG_FRAGS) we should ignore the MORE flag and sendthe buffer anyways.What actually happens though is we abort the msg to msg_pl scatterlistsetup and then because we forget to set full record indicating wecan no longer consume data without a send we fallthrough to the continue path which will check if msg_data_left(msg) has more bytes to send andthen attempts to fit them in the already full msg_pl. Then nextiteration of sender doing send will encounter a full msg_pl and throwthe warning in the syzbot report.To fix simply check if we have a full_record in splice code path andif not send the msg regardless of MORE flag.
漏洞公开时间:2024-05-17 23:15
漏洞创建时间:2024-05-18 00:17:38
漏洞详情参考链接:
https://nvd.nist.gov/vuln/detail/CVE-2024-35841
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:
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/dc9dfc8dc629e42f2234e3327b75324ffc752bc9 | https://git.kernel.org/linus/fe1e81d4f73b6cbaed4fcc476960d26770642842 | 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:net: tls, fix WARNIING in __sk_msg_freeA splice with MSG_SPLICE_PAGES will cause tls code to use thetls_sw_sendmsg_splice path in the TLS sendmsg code to move the userprovided pages from the msg into the msg_pl. This will loop over themsg until msg_pl is full, checked by sk_msg_full(msg_pl). The usercan also set the MORE flag to hint stack to delay sending until receivingmore pages and ideally a full buffer.If the user adds more pages to the msg than can fit in the msg_plscatterlist (MAX_MSG_FRAGS) we should ignore the MORE flag and sendthe buffer anyways.What actually happens though is we abort the msg to msg_pl scatterlistsetup and then because we forget to set full record indicating wecan no longer consume data without a send we fallthrough to the continue path which will check if msg_data_left(msg) has more bytes to send andthen attempts to fit them in the already full msg_pl. Then nextiteration of sender doing send will encounter a full msg_pl and throwthe warning in the syzbot report.To fix simply check if we have a full_record in splice code path andif not send the msg regardless of MORE flag.
openEuler评分:
0.0
Vector:CVSS:2.0/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:N
受影响版本排查(受影响/不受影响):
1.openEuler-20.03-LTS-SP1(4.19.90):不受影响
2.openEuler-20.03-LTS-SP4:不受影响
3.openEuler-22.03-LTS(5.10.0):不受影响
4.openEuler-22.03-LTS-SP1(5.10.0):不受影响
5.openEuler-22.03-LTS-SP2(5.10.0):不受影响
6.openEuler-22.03-LTS-SP3:不受影响
7.master(6.1.0):不受影响
8.openEuler-22.03-LTS-Next(5.10.0):不受影响
9.openEuler-24.03-LTS(6.6.0):不受影响
10.openEuler-24.03-LTS-Next(6.6.0):不受影响
11.openEuler-22.03-LTS-SP4:
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
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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-22.03-LTS-SP4:
10.openEuler-24.03-LTS:
11.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-22.03-LTS-SP4:
10.openEuler-24.03-LTS:
11.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-2024-35841 | None | None |
https://git.kernel.org/stable/c/294e7ea85f34748f04e5f3f9dba6f6b911d31aa8 https://git.kernel.org/stable/c/02e368eb1444a4af649b73cbe2edd51780511d86 https://git.kernel.org/stable/c/dc9dfc8dc629e42f2234e3327b75324ffc752bc9 |
https://ubuntu.com/security/CVE-2024-35841 | None | None | https://discourse.ubuntu.com/c/ubuntu-pro |
https://www.opencve.io/cve/CVE-2024-35841 | None | None |
https://git.kernel.org/stable/c/294e7ea85f34748f04e5f3f9dba6f6b911d31aa8 https://git.kernel.org/stable/c/02e368eb1444a4af649b73cbe2edd51780511d86 https://git.kernel.org/stable/c/dc9dfc8dc629e42f2234e3327b75324ffc752bc9 |
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2024-35841 | |||
https://security-tracker.debian.org/tracker/CVE-2024-35841 |
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-2024-35841
影响性分析说明:
In the Linux kernel, the following vulnerability has been resolved:
net: tls, fix WARNIING in __sk_msg_free
A splice with MSG_SPLICE_PAGES will cause tls code to use the
tls_sw_sendmsg_splice path in the TLS sendmsg code to move the user
provided pages from the msg into the msg_pl. This will loop over the
msg until msg_pl is full, checked by sk_msg_full(msg_pl). The user
can also set the MORE flag to hint stack to delay sending until receiving
more pages and ideally a full buffer.
If the user adds more pages to the msg than can fit in the msg_pl
scatterlist (MAX_MSG_FRAGS) we should ignore the MORE flag and send
the buffer anyways.
What actually happens though is we abort the msg to msg_pl scatterlist
setup and then because we forget to set 'full record' indicating we
can no longer consume data without a send we fallthrough to the 'continue'
path which will check if msg_data_left(msg) has more bytes to send and
then attempts to fit them in the already full msg_pl. Then next
iteration of sender doing send will encounter a full msg_pl and throw
the warning in the syzbot report.
To fix simply check if we have a full_record in splice code path and
if not send the msg regardless of MORE flag.
openEuler评分:(评分和向量)
0
CVSS: 3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:N
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:不受影响
4.openEuler-22.03-LTS-SP1:不受影响
5.openEuler-22.03-LTS-SP2:不受影响
6.openEuler-22.03-LTS-SP3:不受影响
7.master(6.1.0):不受影响
8.openEuler-22.03-LTS-Next:不受影响
9.openEuler-24.03-LTS:不受影响
10.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
@ 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:net: tls, fix WARNIING in __sk_msg_freeA splice with MSG_SPLICE_PAGES will cause tls code to use thetls_sw_sendmsg_splice path in the TLS sendmsg code to move the userprovided pages from the msg into the msg_pl. This will loop over themsg until msg_pl is full, checked by sk_msg_full(msg_pl). The usercan also set the MORE flag to hint stack to delay sending until receivingmore pages and ideally a full buffer.If the user adds more pages to the msg than can fit in the msg_plscatterlist (MAX_MSG_FRAGS) we should ignore the MORE flag and sendthe buffer anyways.What actually happens though is we abort the msg to msg_pl scatterlistsetup and then because we forget to set 'full record' indicating wecan no longer consume data without a send we fallthrough to the 'continue'path which will check if msg_data_left(msg) has more bytes to send andthen attempts to fit them in the already full msg_pl. Then nextiteration of sender doing send will encounter a full msg_pl and throwthe warning in the syzbot report.To fix simply check if we have a full_record in splice code path andif not send the msg regardless of MORE flag. |
已分析 | 2.openEulerScore | 0 |
已分析 | 3.openEulerVector | AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:N |
已分析 | 4.受影响版本排查 | openEuler-20.03-LTS-SP1:不受影响,openEuler-20.03-LTS-SP4:不受影响,openEuler-22.03-LTS:不受影响,openEuler-22.03-LTS-SP1:不受影响,openEuler-22.03-LTS-SP2:不受影响,openEuler-22.03-LTS-SP3: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 |
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.
@郭梦琪 请确认分支: openEuler-22.03-LTS-SP4 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.
@郭梦琪 请确认分支: openEuler-22.03-LTS-SP4 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.
@郭梦琪 请确认分支: openEuler-22.03-LTS-SP4 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.
@郭梦琪 请确认分支: openEuler-22.03-LTS-SP4 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.
@郭梦琪 请确认分支: openEuler-22.03-LTS-SP4 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.
@郭梦琪 请确认分支: openEuler-22.03-LTS-SP4 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.
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