Description
Use-after-free vulnerability in the _gnutls_handshake_hash_buffers_clear function in lib/gnutls_handshake.c in libgnutls in GnuTLS 2.3.5 through 2.4.0 allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via TLS transmission of data that is improperly used when the peer calls gnutls_handshake within a normal session, leading to attempted access to a deallocated libgcrypt handle.
References
- [gnutls-devel] 20080630 GnuTLS 2.4.1 mailing-list
- https://issues.rpath.com/browse/RPL-2650
- http://www.gnu.org/software/gnutls/security.html
- [gnutls-devel] 20080630 Details on the gnutls_handshake local crash problem [GNUTLS-SA-2008-2] mailing-list
- ADV-2008-2398 vdb-entry
- 30713 vdb-entry
- gnutls-gnutlshandshake-code-execution(44486) vdb-entry
- 31505 third-party-advisory