CVE-2024-36971
HIGH
7,8
Source: [email protected]
Attack Vector: local
Attack Complexity: low
Privileges Required: low
User Interaction: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Description
AI Translation Available
In the Linux kernel, the following vulnerability has been resolved:
net: fix __dst_negative_advice() race
__dst_negative_advice() does not enforce proper RCU rules when
sk->dst_cache must be cleared, leading to possible UAF.
RCU rules are that we must first clear sk->sk_dst_cache,
then call dst_release(old_dst).
Note that sk_dst_reset(sk) is implementing this protocol correctly,
while __dst_negative_advice() uses the wrong order.
Given that ip6_negative_advice() has special logic
against RTF_CACHE, this means each of the three ->negative_advice()
existing methods must perform the sk_dst_reset() themselves.
Note the check against NULL dst is centralized in
__dst_negative_advice(), there is no need to duplicate
it in various callbacks.
Many thanks to Clement Lecigne for tracking this issue.
This old bug became visible after the blamed commit, using UDP sockets.
EPSS (Exploit Prediction Scoring System)
Trend Analysis
EPSS (Exploit Prediction Scoring System)
Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.
EPSS Score
0,0044
Percentile
0,6th
Updated
EPSS Score Trend (Last 90 Days)
416
Use After Free
StableCommon Consequences
Security Scopes Affected:
Integrity
Availability
Confidentiality
Potential Impacts:
Modify Memory
Dos: Crash, Exit, Or Restart
Execute Unauthorized Code Or Commands
Applicable Platforms
Languages:
C, C++, Memory-Unsafe
Operating System
Debian Linux by Debian
CPE Identifier
View Detailed Analysis
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System
Linux Kernel by Linux
Version Range Affected
From
5.11
(inclusive)
To
5.15.161
(exclusive)
CPE Identifier
View Detailed Analysis
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System
Linux Kernel by Linux
Version Range Affected
From
4.6
(inclusive)
To
4.19.316
(exclusive)
CPE Identifier
View Detailed Analysis
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System
Linux Kernel by Linux
Version Range Affected
From
6.2
(inclusive)
To
6.6.34
(exclusive)
CPE Identifier
View Detailed Analysis
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System
Linux Kernel by Linux
Version Range Affected
From
4.20
(inclusive)
To
5.4.278
(exclusive)
CPE Identifier
View Detailed Analysis
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System
Linux Kernel by Linux
Version Range Affected
From
6.7
(inclusive)
To
6.9.4
(exclusive)
CPE Identifier
View Detailed Analysis
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System
Linux Kernel by Linux
Version Range Affected
From
5.16
(inclusive)
To
6.1.94
(exclusive)
CPE Identifier
View Detailed Analysis
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System
Linux Kernel by Linux
Version Range Affected
From
5.5
(inclusive)
To
5.10.219
(exclusive)
CPE Identifier
View Detailed Analysis
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024…
https://git.kernel.org/stable/c/051c0bde9f0450a2ec3d62a86d2a0d2fad117f13
https://git.kernel.org/stable/c/2295a7ef5c8c49241bff769e7826ef2582e532a6
https://git.kernel.org/stable/c/5af198c387128a9d2ddd620b0f0803564a4d4508
https://git.kernel.org/stable/c/81dd3c82a456b0015461754be7cb2693991421b4
https://git.kernel.org/stable/c/92f1655aa2b2294d0b49925f3b875a634bd3b59e
https://git.kernel.org/stable/c/b8af8e6118a6605f0e495a58d591ca94a85a50fc
https://git.kernel.org/stable/c/db0082825037794c5dba9959c9de13ca34cc5e72
https://git.kernel.org/stable/c/eacb8b195579c174a6d3e12a9690b206eb7f28cf
https://git.kernel.org/stable/c/051c0bde9f0450a2ec3d62a86d2a0d2fad117f13
https://git.kernel.org/stable/c/2295a7ef5c8c49241bff769e7826ef2582e532a6
https://git.kernel.org/stable/c/5af198c387128a9d2ddd620b0f0803564a4d4508
https://git.kernel.org/stable/c/81dd3c82a456b0015461754be7cb2693991421b4
https://git.kernel.org/stable/c/92f1655aa2b2294d0b49925f3b875a634bd3b59e
https://git.kernel.org/stable/c/b8af8e6118a6605f0e495a58d591ca94a85a50fc
https://git.kernel.org/stable/c/db0082825037794c5dba9959c9de13ca34cc5e72
https://git.kernel.org/stable/c/eacb8b195579c174a6d3e12a9690b206eb7f28cf
https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html