GHSA-jfx5-c9g5-vf27HighCVSS 7.6
libsmb2 before 6.3 contains integer overflow vulnerabilities in the DCE/RPC NDR decoder in lib...
🔗 CVE IDs covered (1)
📋 Description
libsmb2 before 6.3 contains integer overflow vulnerabilities in the DCE/RPC NDR decoder in lib/dcerpc.c that allow heap out-of-bounds reads and writes. A malicious SMB server or machine-in-the-middle on unsigned connections can send crafted NetrShareEnum replies with wrapping actual_count or max_count values when clients call smb2_share_enum_async(), corrupting heap memory.
🔗 References (8)
- https://nvd.nist.gov/vuln/detail/CVE-2026-115505
- https://github.com/sahlberg/libsmb2/issues/496
- https://github.com/sahlberg/libsmb2/commit/a79f6914cb5ed3f74293d15cdea901261ce179ff
- https://github.com/sahlberg/libsmb2
- https://github.com/sahlberg/libsmb2/releases/tag/libsmb2-6.3
- https://hackmd.io/@haindpwn/libsmb2-dcerpc-ndr-count-overflow-oob
- https://www.vulncheck.com/advisories/libsmb2-before-6.3-integer-overflow-in-dce-rpc-ndr-decoder-via-netrshareenum
- https://github.com/advisories/GHSA-jfx5-c9g5-vf27