Vulnerability Description
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.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 2.6.37, < 4.9.311 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/1316c28569a80ab3596eeab05bf5e01991e7e739Patch
- https://git.kernel.org/stable/c/22d658c6c5affed10c8907e67160cef0b6c92186Patch
- https://git.kernel.org/stable/c/3e582749e742e662a8e9bb37cffac62dccaaa1e2Patch
- https://git.kernel.org/stable/c/4e166a41180be2f1e66bbb6d46448e80a9a5ec05Patch
- https://git.kernel.org/stable/c/515e7ba11ef043d6febe69389949c8ef5f25e9d0Patch
- https://git.kernel.org/stable/c/64c4a37ac04eeb43c42d272f6e6c8c12bfcf4304Patch
- https://git.kernel.org/stable/c/9901b07ba42b39266b34a888e48d7306fd707beePatch
- https://git.kernel.org/stable/c/eb5f51756944735ac70cd8bb38637cc202e29c91Patch
FAQ
What is CVE-2022-49058?
CVE-2022-49058 is a vulnerability with a CVSS score of 9.1 (CRITICAL). 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_updat...
How severe is CVE-2022-49058?
CVE-2022-49058 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2022-49058?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.