by Kastro CVE-2022-49058
Linux Linux — cifs: potential buffer overflow in handling symlinks
Description · from the CVE record
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.
Affected
ProductAffectedFixed inSource
Linuxc69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131 – < 3e582749e742e662a8e9bb37cffac62dccaaa1e23e582749e742e662a8e9bb37cffac62dccaaa1e2CNA
Linuxc69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131 – < 1316c28569a80ab3596eeab05bf5e01991e7e7391316c28569a80ab3596eeab05bf5e01991e7e739CNA
Linuxc69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131 – < eb5f51756944735ac70cd8bb38637cc202e29c91eb5f51756944735ac70cd8bb38637cc202e29c91CNA
Linuxc69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131 – < 22d658c6c5affed10c8907e67160cef0b6c9218622d658c6c5affed10c8907e67160cef0b6c92186CNA
Linuxc69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131 – < 4e166a41180be2f1e66bbb6d46448e80a9a5ec054e166a41180be2f1e66bbb6d46448e80a9a5ec05CNA
Linuxc69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131 – < 9901b07ba42b39266b34a888e48d7306fd707bee9901b07ba42b39266b34a888e48d7306fd707beeCNA
Linuxc69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131 – < 515e7ba11ef043d6febe69389949c8ef5f25e9d0515e7ba11ef043d6febe69389949c8ef5f25e9d0CNA
Linuxc69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131 – < 64c4a37ac04eeb43c42d272f6e6c8c12bfcf430464c4a37ac04eeb43c42d272f6e6c8c12bfcf4304CNA
Linux2.6.37–CNA
Scores by source
Linux (CNA)9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
CISA ADP7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: total