CVE-2024-50142
Linux Kernel XFRM Selector Family Validation Vulnerability
Description
In the Linux kernel, the following vulnerability has been resolved: xfrm: validate new SA's prefixlen using SA family when sel.family is unset This expands the validation introduced in commit 07bf7908950a ("xfrm: Validate address prefix lengths in the xfrm selector.") syzbot created an SA with usersa.sel.family = AF_UNSPEC usersa.sel.prefixlen_s = 128 usersa.family = AF_INET Because of the AF_UNSPEC selector, verify_newsa_info doesn't put limits on prefixlen_{s,d}. But then copy_from_user_state sets x->sel.family to usersa.family (AF_INET). Do the same conversion in verify_newsa_info before validating prefixlen_{s,d}, since that's how prefixlen is going to be used later on.
INFO
Published Date :
Nov. 7, 2024, 10:15 a.m.
Last Modified :
Nov. 22, 2024, 4:47 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2024-50142.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2024-50142 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-50142 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
Nov. 22, 2024
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE NIST NVD-CWE-noinfo Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 2.6.12 up to (excluding) 4.19.323 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.285 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.229 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.170 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.115 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.59 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.11.6 *cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.12:rc4:*:*:*:*:*:* Changed Reference Type https://git.kernel.org/stable/c/2d08a6c31c65f23db71a5385ee9cf9d8f9a67a71 No Types Assigned https://git.kernel.org/stable/c/2d08a6c31c65f23db71a5385ee9cf9d8f9a67a71 Patch Changed Reference Type https://git.kernel.org/stable/c/3f0ab59e6537c6a8f9e1b355b48f9c05a76e8563 No Types Assigned https://git.kernel.org/stable/c/3f0ab59e6537c6a8f9e1b355b48f9c05a76e8563 Patch Changed Reference Type https://git.kernel.org/stable/c/401ad99a5ae7180dd9449eac104cb755f442e7f3 No Types Assigned https://git.kernel.org/stable/c/401ad99a5ae7180dd9449eac104cb755f442e7f3 Patch Changed Reference Type https://git.kernel.org/stable/c/7d9868180bd1e4cf37e7c5067362658971162366 No Types Assigned https://git.kernel.org/stable/c/7d9868180bd1e4cf37e7c5067362658971162366 Patch Changed Reference Type https://git.kernel.org/stable/c/8df5cd51fd70c33aa1776e5cbcd82b0a86649d73 No Types Assigned https://git.kernel.org/stable/c/8df5cd51fd70c33aa1776e5cbcd82b0a86649d73 Patch Changed Reference Type https://git.kernel.org/stable/c/bce1afaa212ec380bf971614f70909a27882b862 No Types Assigned https://git.kernel.org/stable/c/bce1afaa212ec380bf971614f70909a27882b862 Patch Changed Reference Type https://git.kernel.org/stable/c/e68dd80ba498265d2266b12dc3459164f4ff0c4a No Types Assigned https://git.kernel.org/stable/c/e68dd80ba498265d2266b12dc3459164f4ff0c4a Patch Changed Reference Type https://git.kernel.org/stable/c/f31398570acf0f0804c644006f7bfa9067106b0a No Types Assigned https://git.kernel.org/stable/c/f31398570acf0f0804c644006f7bfa9067106b0a Patch -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Nov. 08, 2024
Action Type Old Value New Value Added Reference kernel.org https://git.kernel.org/stable/c/f31398570acf0f0804c644006f7bfa9067106b0a [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/401ad99a5ae7180dd9449eac104cb755f442e7f3 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/8df5cd51fd70c33aa1776e5cbcd82b0a86649d73 [No types assigned] -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Nov. 07, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: xfrm: validate new SA's prefixlen using SA family when sel.family is unset This expands the validation introduced in commit 07bf7908950a ("xfrm: Validate address prefix lengths in the xfrm selector.") syzbot created an SA with usersa.sel.family = AF_UNSPEC usersa.sel.prefixlen_s = 128 usersa.family = AF_INET Because of the AF_UNSPEC selector, verify_newsa_info doesn't put limits on prefixlen_{s,d}. But then copy_from_user_state sets x->sel.family to usersa.family (AF_INET). Do the same conversion in verify_newsa_info before validating prefixlen_{s,d}, since that's how prefixlen is going to be used later on. Added Reference kernel.org https://git.kernel.org/stable/c/2d08a6c31c65f23db71a5385ee9cf9d8f9a67a71 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/bce1afaa212ec380bf971614f70909a27882b862 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/7d9868180bd1e4cf37e7c5067362658971162366 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/e68dd80ba498265d2266b12dc3459164f4ff0c4a [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/3f0ab59e6537c6a8f9e1b355b48f9c05a76e8563 [No types assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-50142 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2024-50142
weaknesses.