CVE-2024-53066
Linux NFS decode_getfattr_attrs Uninitialized Memory Disclosure
Description
In the Linux kernel, the following vulnerability has been resolved: nfs: Fix KMSAN warning in decode_getfattr_attrs() Fix the following KMSAN warning: CPU: 1 UID: 0 PID: 7651 Comm: cp Tainted: G B Tainted: [B]=BAD_PAGE Hardware name: QEMU Standard PC (Q35 + ICH9, 2009) ===================================================== ===================================================== BUG: KMSAN: uninit-value in decode_getfattr_attrs+0x2d6d/0x2f90 decode_getfattr_attrs+0x2d6d/0x2f90 decode_getfattr_generic+0x806/0xb00 nfs4_xdr_dec_getattr+0x1de/0x240 rpcauth_unwrap_resp_decode+0xab/0x100 rpcauth_unwrap_resp+0x95/0xc0 call_decode+0x4ff/0xb50 __rpc_execute+0x57b/0x19d0 rpc_execute+0x368/0x5e0 rpc_run_task+0xcfe/0xee0 nfs4_proc_getattr+0x5b5/0x990 __nfs_revalidate_inode+0x477/0xd00 nfs_access_get_cached+0x1021/0x1cc0 nfs_do_access+0x9f/0xae0 nfs_permission+0x1e4/0x8c0 inode_permission+0x356/0x6c0 link_path_walk+0x958/0x1330 path_lookupat+0xce/0x6b0 filename_lookup+0x23e/0x770 vfs_statx+0xe7/0x970 vfs_fstatat+0x1f2/0x2c0 __se_sys_newfstatat+0x67/0x880 __x64_sys_newfstatat+0xbd/0x120 x64_sys_call+0x1826/0x3cf0 do_syscall_64+0xd0/0x1b0 entry_SYSCALL_64_after_hwframe+0x77/0x7f The KMSAN warning is triggered in decode_getfattr_attrs(), when calling decode_attr_mdsthreshold(). It appears that fattr->mdsthreshold is not initialized. Fix the issue by initializing fattr->mdsthreshold to NULL in nfs_fattr_init().
INFO
Published Date :
Nov. 19, 2024, 6:15 p.m.
Last Modified :
Nov. 25, 2024, 9:03 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update the Linux kernel to a non-vulnerable version.
- Reboot the system after the update.
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-2024-53066.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-53066 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-2024-53066
weaknesses.
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-2024-53066 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-53066 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.
-
Initial Analysis by [email protected]
Nov. 25, 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 CWE-908 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 3.5 up to (excluding) 4.19.324 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.286 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.230 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.172 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.117 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.61 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.11.8 *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:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.12:rc5:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.12:rc6:*:*:*:*:*:* Changed Reference Type https://git.kernel.org/stable/c/25ffd294fef81a7f3cd9528adf21560c04d98747 No Types Assigned https://git.kernel.org/stable/c/25ffd294fef81a7f3cd9528adf21560c04d98747 Patch Changed Reference Type https://git.kernel.org/stable/c/8fc5ea9231af9122d227c9c13f5e578fca48d2e3 No Types Assigned https://git.kernel.org/stable/c/8fc5ea9231af9122d227c9c13f5e578fca48d2e3 Patch Changed Reference Type https://git.kernel.org/stable/c/9b453e8b108a5a93a6e348cf2ba4c9c138314a00 No Types Assigned https://git.kernel.org/stable/c/9b453e8b108a5a93a6e348cf2ba4c9c138314a00 Patch Changed Reference Type https://git.kernel.org/stable/c/9be0a21ae52b3b822d0eec4d14e909ab394f8a92 No Types Assigned https://git.kernel.org/stable/c/9be0a21ae52b3b822d0eec4d14e909ab394f8a92 Patch Changed Reference Type https://git.kernel.org/stable/c/bbfcd261cc068fe1cd02a4e871275074a0daa4e2 No Types Assigned https://git.kernel.org/stable/c/bbfcd261cc068fe1cd02a4e871275074a0daa4e2 Patch Changed Reference Type https://git.kernel.org/stable/c/dc270d7159699ad6d11decadfce9633f0f71c1db No Types Assigned https://git.kernel.org/stable/c/dc270d7159699ad6d11decadfce9633f0f71c1db Patch Changed Reference Type https://git.kernel.org/stable/c/f6b2b2b981af8e7d7c62d34143acefa4e1edfe8b No Types Assigned https://git.kernel.org/stable/c/f6b2b2b981af8e7d7c62d34143acefa4e1edfe8b Patch Changed Reference Type https://git.kernel.org/stable/c/f749cb60a01f8391c760a1d6ecd938cadacf9549 No Types Assigned https://git.kernel.org/stable/c/f749cb60a01f8391c760a1d6ecd938cadacf9549 Patch -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Nov. 19, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: nfs: Fix KMSAN warning in decode_getfattr_attrs() Fix the following KMSAN warning: CPU: 1 UID: 0 PID: 7651 Comm: cp Tainted: G B Tainted: [B]=BAD_PAGE Hardware name: QEMU Standard PC (Q35 + ICH9, 2009) ===================================================== ===================================================== BUG: KMSAN: uninit-value in decode_getfattr_attrs+0x2d6d/0x2f90 decode_getfattr_attrs+0x2d6d/0x2f90 decode_getfattr_generic+0x806/0xb00 nfs4_xdr_dec_getattr+0x1de/0x240 rpcauth_unwrap_resp_decode+0xab/0x100 rpcauth_unwrap_resp+0x95/0xc0 call_decode+0x4ff/0xb50 __rpc_execute+0x57b/0x19d0 rpc_execute+0x368/0x5e0 rpc_run_task+0xcfe/0xee0 nfs4_proc_getattr+0x5b5/0x990 __nfs_revalidate_inode+0x477/0xd00 nfs_access_get_cached+0x1021/0x1cc0 nfs_do_access+0x9f/0xae0 nfs_permission+0x1e4/0x8c0 inode_permission+0x356/0x6c0 link_path_walk+0x958/0x1330 path_lookupat+0xce/0x6b0 filename_lookup+0x23e/0x770 vfs_statx+0xe7/0x970 vfs_fstatat+0x1f2/0x2c0 __se_sys_newfstatat+0x67/0x880 __x64_sys_newfstatat+0xbd/0x120 x64_sys_call+0x1826/0x3cf0 do_syscall_64+0xd0/0x1b0 entry_SYSCALL_64_after_hwframe+0x77/0x7f The KMSAN warning is triggered in decode_getfattr_attrs(), when calling decode_attr_mdsthreshold(). It appears that fattr->mdsthreshold is not initialized. Fix the issue by initializing fattr->mdsthreshold to NULL in nfs_fattr_init(). Added Reference kernel.org https://git.kernel.org/stable/c/25ffd294fef81a7f3cd9528adf21560c04d98747 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/bbfcd261cc068fe1cd02a4e871275074a0daa4e2 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/8fc5ea9231af9122d227c9c13f5e578fca48d2e3 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/9b453e8b108a5a93a6e348cf2ba4c9c138314a00 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/f6b2b2b981af8e7d7c62d34143acefa4e1edfe8b [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/f749cb60a01f8391c760a1d6ecd938cadacf9549 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/9be0a21ae52b3b822d0eec4d14e909ab394f8a92 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/dc270d7159699ad6d11decadfce9633f0f71c1db [No types assigned]