CVE-2022-49058
cifs: potential buffer overflow in handling symlinks
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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: total
Summary
In the Linux kernel, the following vulnerability has been resolved: cifs: potential buffer overflow in handling symlinks Smatch printed a warning: arch/x86/crypto/poly1305_glue.c:198 poly1305_update_arch() error: __memcpy() 'dctx->buf' too small (16 vs u32max) It's caused because Smatch marks 'link_len' as untrusted since it comes from sscanf(). Add a check to ensure that 'link_len' is not larger than the size of the 'link_str' buffer.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: total
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
2.6.37
References 8
git.kernel.org
- stable/c/3e582749e742e662a8e9bb37cffac62dccaaa1e2
- stable/c/1316c28569a80ab3596eeab05bf5e01991e7e739
- stable/c/eb5f51756944735ac70cd8bb38637cc202e29c91
- stable/c/22d658c6c5affed10c8907e67160cef0b6c92186
- stable/c/4e166a41180be2f1e66bbb6d46448e80a9a5ec05
- stable/c/9901b07ba42b39266b34a888e48d7306fd707bee
- stable/c/515e7ba11ef043d6febe69389949c8ef5f25e9d0
- stable/c/64c4a37ac04eeb43c42d272f6e6c8c12bfcf4304