CVE-2022-49058
critical · 9.1In 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.
9.1
CVSS
0.9%
EPSS (exploit prob.)
57th
EPSS percentile
2025-02-26
Published
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Weaknesses
CWE-120
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| linux | linux_kernel | >= 2.6.37, < 4.9.311 |
| linux | linux_kernel | >= 4.10, < 4.14.276 |
| linux | linux_kernel | >= 4.15, < 4.19.239 |
| linux | linux_kernel | >= 4.20, < 5.4.190 |
| linux | linux_kernel | >= 5.5, < 5.10.112 |
| linux | linux_kernel | >= 5.11, < 5.15.35 |
| linux | linux_kernel | >= 5.16, < 5.17.4 |
| linux | linux_kernel | 5.18 |
| linux | linux_kernel | 5.18 |
Check a specific version with /api/v1/cve/match.
References
- https://git.kernel.org/stable/c/1316c28569a80ab3596eeab05bf5e01991e7e739
- https://git.kernel.org/stable/c/22d658c6c5affed10c8907e67160cef0b6c92186
- https://git.kernel.org/stable/c/3e582749e742e662a8e9bb37cffac62dccaaa1e2
- https://git.kernel.org/stable/c/4e166a41180be2f1e66bbb6d46448e80a9a5ec05
- https://git.kernel.org/stable/c/515e7ba11ef043d6febe69389949c8ef5f25e9d0
- https://git.kernel.org/stable/c/64c4a37ac04eeb43c42d272f6e6c8c12bfcf4304
- https://git.kernel.org/stable/c/9901b07ba42b39266b34a888e48d7306fd707bee
- https://git.kernel.org/stable/c/eb5f51756944735ac70cd8bb38637cc202e29c91
Query this programmatically:
curl https://evil-db.io/api/v1/cve/CVE-2022-49058