ssl3_get_record in s3_pkt.c for OpenSSL before 0.9.7a and 0.9.6 before 0.9.6i does not perform a MAC computation if an incorrect block cipher padding is used, which causes an information leak (timing discrepancy) that may make it easier to launch cryptographic attacks that rely on distinguishing between padding and MAC verification errors, possibly leading to extraction of the original plaintext, aka the “Vaudenay timing attack.”
ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2003-001.txt.asc
ftp://patches.sgi.com/support/free/security/advisories/20030501-01-I
distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000570
marc.info/?l=bugtraq&m=104567627211904&w=2
marc.info/?l=bugtraq&m=104568426824439&w=2
marc.info/?l=bugtraq&m=104577183206905&w=2
www.ciac.org/ciac/bulletins/n-051.shtml
www.debian.org/security/2003/dsa-253
www.iss.net/security_center/static/11369.php
www.linuxsecurity.com/advisories/engarde_advisory-2874.html
www.mandrakesoft.com/security/advisories?name=MDKSA-2003:020
www.openssl.org/news/secadv_20030219.txt
www.osvdb.org/3945
www.redhat.com/support/errata/RHSA-2003-062.html
www.redhat.com/support/errata/RHSA-2003-063.html
www.redhat.com/support/errata/RHSA-2003-082.html
www.redhat.com/support/errata/RHSA-2003-104.html
www.redhat.com/support/errata/RHSA-2003-205.html
www.securityfocus.com/bid/6884
www.trustix.org/errata/2003/0005