CVE-2025-57632
libsmb2 6.2+ is vulnerable to Buffer Overflow. When processing SMB2 chained PDUs (NextCommand), libsmb2 repeatedly calls smb2_add_iovector() to append...
原文の説明
取得元が公開している説明をそのまま載せています (多くは英語)。
libsmb2 6.2+ is vulnerable to Buffer Overflow. When processing SMB2 chained PDUs (NextCommand), libsmb2 repeatedly calls smb2_add_iovector() to append to a fixed-size iovec array without checking the upper bound of v->niov (SMB2_MAX_VECTORS=256). An attacker can craft responses with many chained PDUs to overflow v->niov and perform heap out-of-bounds writes, causing memory corruption, crashes, and potentially arbitrary code execution. The SMB2_OPLOCK_BREAK path bypasses message ID validation.
ディストリビューション別の修正状況
各ディストリビューションが公開している、この CVE の修正パッケージ
- Debian DEBIAN-CVE-2025-57632 libsmb2 修正版: 6.2+dfsg-2+deb13u1
- Ubuntu UBUNTU-CVE-2025-57632 libsmb2
参照URL
- advisory github.com
- advisory nvd.nist.gov
- package github.com
- patch github.com
- web gist.github.com
- web github.com