CVE-2024-49900
Linux Kernel JFS Uninitialized Memory Access Vulnerability
Description
In the Linux kernel, the following vulnerability has been resolved: jfs: Fix uninit-value access of new_ea in ea_buffer syzbot reports that lzo1x_1_do_compress is using uninit-value: ===================================================== BUG: KMSAN: uninit-value in lzo1x_1_do_compress+0x19f9/0x2510 lib/lzo/lzo1x_compress.c:178 ... Uninit was stored to memory at: ea_put fs/jfs/xattr.c:639 [inline] ... Local variable ea_buf created at: __jfs_setxattr+0x5d/0x1ae0 fs/jfs/xattr.c:662 __jfs_xattr_set+0xe6/0x1f0 fs/jfs/xattr.c:934 ===================================================== The reason is ea_buf->new_ea is not initialized properly. Fix this by using memset to empty its content at the beginning in ea_get().
INFO
Published Date :
Oct. 21, 2024, 6:15 p.m.
Last Modified :
Nov. 8, 2024, 4:15 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
5.2
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-2024-49900.
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-2024-49900 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-49900 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/7b24d41d47a6805c45378debf8bd115675d41da8 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/dac398ed272a378d2f42ac68ae408333a51baf52 [No types assigned] -
Initial Analysis by [email protected]
Oct. 25, 2024
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H Changed Reference Type https://git.kernel.org/stable/c/2b59ffad47db1c46af25ccad157bb3b25147c35c No Types Assigned https://git.kernel.org/stable/c/2b59ffad47db1c46af25ccad157bb3b25147c35c Patch Changed Reference Type https://git.kernel.org/stable/c/6041536d18c5f51a84bc37cd568cbab61870031e No Types Assigned https://git.kernel.org/stable/c/6041536d18c5f51a84bc37cd568cbab61870031e Patch Changed Reference Type https://git.kernel.org/stable/c/7c244d5b48284a770d96ff703df2dfeadf804a73 No Types Assigned https://git.kernel.org/stable/c/7c244d5b48284a770d96ff703df2dfeadf804a73 Patch Changed Reference Type https://git.kernel.org/stable/c/8ad8b531de79c348bcb8133e7f5e827b884226af No Types Assigned https://git.kernel.org/stable/c/8ad8b531de79c348bcb8133e7f5e827b884226af Patch Changed Reference Type https://git.kernel.org/stable/c/8b1dcf25c26d42e4a68c4725ce52a0543c7878cc No Types Assigned https://git.kernel.org/stable/c/8b1dcf25c26d42e4a68c4725ce52a0543c7878cc Patch Changed Reference Type https://git.kernel.org/stable/c/c076b3746224982eebdba5c9e4b1467e146c0d64 No Types Assigned https://git.kernel.org/stable/c/c076b3746224982eebdba5c9e4b1467e146c0d64 Patch Changed Reference Type https://git.kernel.org/stable/c/d7444f91a9f93eaa48827087ed0f3381c194181d No Types Assigned https://git.kernel.org/stable/c/d7444f91a9f93eaa48827087ed0f3381c194181d Patch Added CWE NIST CWE-908 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 5.10.227 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.168 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.113 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.55 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.10.14 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.11 up to (excluding) 6.11.3 -
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: jfs: Fix uninit-value access of new_ea in ea_buffer syzbot reports that lzo1x_1_do_compress is using uninit-value: ===================================================== BUG: KMSAN: uninit-value in lzo1x_1_do_compress+0x19f9/0x2510 lib/lzo/lzo1x_compress.c:178 ... Uninit was stored to memory at: ea_put fs/jfs/xattr.c:639 [inline] ... Local variable ea_buf created at: __jfs_setxattr+0x5d/0x1ae0 fs/jfs/xattr.c:662 __jfs_xattr_set+0xe6/0x1f0 fs/jfs/xattr.c:934 ===================================================== The reason is ea_buf->new_ea is not initialized properly. Fix this by using memset to empty its content at the beginning in ea_get(). Added Reference kernel.org https://git.kernel.org/stable/c/8b1dcf25c26d42e4a68c4725ce52a0543c7878cc [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/d7444f91a9f93eaa48827087ed0f3381c194181d [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/6041536d18c5f51a84bc37cd568cbab61870031e [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/c076b3746224982eebdba5c9e4b1467e146c0d64 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/7c244d5b48284a770d96ff703df2dfeadf804a73 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/8ad8b531de79c348bcb8133e7f5e827b884226af [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/2b59ffad47db1c46af25ccad157bb3b25147c35c [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-2024-49900 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-2024-49900
weaknesses.