Description (CNA)
NetBSD contains a use-after-free and double-free vulnerability in msg_recv_copyin() within the COMPAT_NETBSD32 compatibility layer due to a missing return statement before the cleanup label on the success path. Any local user able to execute a 32-bit binary on a 64-bit NetBSD system can trigger a kernel panic or memory corruption by calling recvmsg() with msg_iovlen between 9 and IOV_MAX, causing the kernel to access a freed iovec buffer and subsequently free the same allocation a second time.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| The NetBSD Foundation / NetBSD | affected 8.0 through 8.3; affected 9.0 before 9.5; affected 10.0 through 10.1 |
CWE
CWE-415, CWE-416
References
- https://gnats.netbsd.org/60373
- https://www.vulncheck.com/advisories/netbsd-compat-netbsd32-double-free-use-after-free-via-recvmsg-msg-iovlen
ADP enrichment
No English description supplied.
No references supplied.