CVE-2021-47168
NFS: fix an incorrect limit in filelayout_decode_layout()
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: no
- Technical impact: partial
Summary
In the Linux kernel, the following vulnerability has been resolved: NFS: fix an incorrect limit in filelayout_decode_layout() The "sizeof(struct nfs_fh)" is two bytes too large and could lead to memory corruption. It should be NFS_MAXFHSIZE because that's the size of the ->data[] buffer. I reversed the size of the arguments to put the variable on the left.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
2.6.37
References 8
git.kernel.org
- stable/c/9d280ab53df1d4a1043bd7a9e7c6a2f9cfbfe040
- stable/c/b287521e9e94bb342ebe5fd8c3fd7db9aef4e6f1
- stable/c/f299522eda1566cbfbae4b15c82970fc41b03714
- stable/c/945ebef997227ca8c20bad7f8a8358c8ee57a84a
- stable/c/e411df81cd862ef3d5b878120b2a2fef0ca9cdb1
- stable/c/9b367fe770b1b80d7bf64ed0d177544a44405f6e
- stable/c/d34fb628f6ef522f996205a9e578216bbee09e84
- stable/c/769b01ea68b6c49dc3cde6adf7e53927dacbd3a8