CVE-2024-49855
Linux Kernel NBD Use-After-Free
Description
In the Linux kernel, the following vulnerability has been resolved: nbd: fix race between timeout and normal completion If request timetout is handled by nbd_requeue_cmd(), normal completion has to be stopped for avoiding to complete this requeued request, other use-after-free can be triggered. Fix the race by clearing NBD_CMD_INFLIGHT in nbd_requeue_cmd(), meantime make sure that cmd->lock is grabbed for clearing the flag and the requeue.
INFO
Published Date :
Oct. 21, 2024, 1:15 p.m.
Last Modified :
Oct. 22, 2024, 4:12 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
5.9
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-2024-49855.
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-2024-49855 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-49855 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.
-
Reanalysis by [email protected]
Oct. 22, 2024
Action Type Old Value New Value Removed CVSS V3.1 NIST AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H Added CVSS V3.1 NIST AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H -
Initial Analysis by [email protected]
Oct. 22, 2024
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://git.kernel.org/stable/c/5236ada8ebbd9e7461f17477357582f5be4f46f7 No Types Assigned https://git.kernel.org/stable/c/5236ada8ebbd9e7461f17477357582f5be4f46f7 Patch Changed Reference Type https://git.kernel.org/stable/c/6e73b946a379a1dfbb62626af93843bdfb53753d No Types Assigned https://git.kernel.org/stable/c/6e73b946a379a1dfbb62626af93843bdfb53753d Patch Changed Reference Type https://git.kernel.org/stable/c/9a74c3e6c0d686c26ba2aab66d15ddb89dc139cc No Types Assigned https://git.kernel.org/stable/c/9a74c3e6c0d686c26ba2aab66d15ddb89dc139cc Patch Changed Reference Type https://git.kernel.org/stable/c/9c25faf72d780a9c71081710cd48759d61ff6e9b No Types Assigned https://git.kernel.org/stable/c/9c25faf72d780a9c71081710cd48759d61ff6e9b Patch Changed Reference Type https://git.kernel.org/stable/c/c9ea57c91f03bcad415e1a20113bdb2077bcf990 No Types Assigned https://git.kernel.org/stable/c/c9ea57c91f03bcad415e1a20113bdb2077bcf990 Patch Added CWE NIST CWE-416 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:5.17.15:*:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.18.4 up to (excluding) 5.19 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.19 up to (excluding) 6.1.113 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.54 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.10.13 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.11 up to (excluding) 6.11.2 -
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: nbd: fix race between timeout and normal completion If request timetout is handled by nbd_requeue_cmd(), normal completion has to be stopped for avoiding to complete this requeued request, other use-after-free can be triggered. Fix the race by clearing NBD_CMD_INFLIGHT in nbd_requeue_cmd(), meantime make sure that cmd->lock is grabbed for clearing the flag and the requeue. Added Reference kernel.org https://git.kernel.org/stable/c/9c25faf72d780a9c71081710cd48759d61ff6e9b [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/6e73b946a379a1dfbb62626af93843bdfb53753d [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/5236ada8ebbd9e7461f17477357582f5be4f46f7 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/9a74c3e6c0d686c26ba2aab66d15ddb89dc139cc [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/c9ea57c91f03bcad415e1a20113bdb2077bcf990 [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-2024-49855 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-2024-49855
weaknesses.