CVE-2024-50010
Linux Kernel exec Vulnerability: Unintended Noexec Flag Racial Condition
Description
In the Linux kernel, the following vulnerability has been resolved: exec: don't WARN for racy path_noexec check Both i_mode and noexec checks wrapped in WARN_ON stem from an artifact of the previous implementation. They used to legitimately check for the condition, but that got moved up in two commits: 633fb6ac3980 ("exec: move S_ISREG() check earlier") 0fd338b2d2cd ("exec: move path_noexec() check earlier") Instead of being removed said checks are WARN_ON'ed instead, which has some debug value. However, the spurious path_noexec check is racy, resulting in unwarranted warnings should someone race with setting the noexec flag. One can note there is more to perm-checking whether execve is allowed and none of the conditions are guaranteed to still hold after they were tested for. Additionally this does not validate whether the code path did any perm checking to begin with -- it will pass if the inode happens to be regular. Keep the redundant path_noexec() check even though it's mindless nonsense checking for guarantee that isn't given so drop the WARN. Reword the commentary and do small tidy ups while here. [brauner: keep redundant path_noexec() check]
INFO
Published Date :
Oct. 21, 2024, 7:15 p.m.
Last Modified :
Nov. 8, 2024, 4:15 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.0
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-2024-50010.
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-2024-50010 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-50010 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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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/c9b77438077d5a20c79ead95bcdaf9bd4797baaf [No types assigned] -
Initial Analysis by [email protected]
Nov. 07, 2024
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://git.kernel.org/stable/c/0bdf77be2330062b3a64f2bec39f62ab874a6796 No Types Assigned https://git.kernel.org/stable/c/0bdf77be2330062b3a64f2bec39f62ab874a6796 Patch Changed Reference Type https://git.kernel.org/stable/c/0d16f53c91111cec914f0811fcc526a2ba77b20d No Types Assigned https://git.kernel.org/stable/c/0d16f53c91111cec914f0811fcc526a2ba77b20d Patch Changed Reference Type https://git.kernel.org/stable/c/0d196e7589cefe207d5d41f37a0a28a1fdeeb7c6 No Types Assigned https://git.kernel.org/stable/c/0d196e7589cefe207d5d41f37a0a28a1fdeeb7c6 Patch Changed Reference Type https://git.kernel.org/stable/c/b723f96407a0a078cf75970e4dbf16b46d286a61 No Types Assigned https://git.kernel.org/stable/c/b723f96407a0a078cf75970e4dbf16b46d286a61 Patch Changed Reference Type https://git.kernel.org/stable/c/d62ba2a5536df83473a2ac15ab302258e3845251 No Types Assigned https://git.kernel.org/stable/c/d62ba2a5536df83473a2ac15ab302258e3845251 Patch Added CWE NIST NVD-CWE-noinfo Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 6.11.3 -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Nov. 04, 2024
Action Type Old Value New Value Added Reference kernel.org https://git.kernel.org/stable/c/b723f96407a0a078cf75970e4dbf16b46d286a61 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/0bdf77be2330062b3a64f2bec39f62ab874a6796 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/0d16f53c91111cec914f0811fcc526a2ba77b20d [No types assigned] -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Oct. 21, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: exec: don't WARN for racy path_noexec check Both i_mode and noexec checks wrapped in WARN_ON stem from an artifact of the previous implementation. They used to legitimately check for the condition, but that got moved up in two commits: 633fb6ac3980 ("exec: move S_ISREG() check earlier") 0fd338b2d2cd ("exec: move path_noexec() check earlier") Instead of being removed said checks are WARN_ON'ed instead, which has some debug value. However, the spurious path_noexec check is racy, resulting in unwarranted warnings should someone race with setting the noexec flag. One can note there is more to perm-checking whether execve is allowed and none of the conditions are guaranteed to still hold after they were tested for. Additionally this does not validate whether the code path did any perm checking to begin with -- it will pass if the inode happens to be regular. Keep the redundant path_noexec() check even though it's mindless nonsense checking for guarantee that isn't given so drop the WARN. Reword the commentary and do small tidy ups while here. [brauner: keep redundant path_noexec() check] Added Reference kernel.org https://git.kernel.org/stable/c/d62ba2a5536df83473a2ac15ab302258e3845251 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/0d196e7589cefe207d5d41f37a0a28a1fdeeb7c6 [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-2024-50010 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-2024-50010
weaknesses.