OpenSSL CVE-2008-5077: Incorrect checks for malformed signatures
Damien Miller <[email protected]> Sat, 10 Jan 2009 00:12:40 +1100 (EST)
| Newsgroups | gmane.os.openbsd.security.announce |
|---|---|
| Message-ID | <[email protected]> |
Some exploitable logic errors have been discovered in OpenSSL versions prior to 0.9.8j. These errors may permit an attacker to bypass validation of DSA/ECDSA certificates and conduct a "man in the middle attack" against SSL/TLS connection that use them. Fortunately, DSA and ECDSA certificates appear to be rarely used in practice. This vulnerability has been designated CVE-2008-5077. More information is available from the OpenSSL project at: http://www.openssl.org/news/secadv_20090107.txt Source code patches are available for OpenBSD 4.3 and 4.4. -current has been updated to OpenSSL 0.9.8j Patch for OpenBSD 4.3: ftp://ftp.openbsd.org/pub/OpenBSD/patches/4.3/common/007_openssl.patch Patch for OpenBSD 4.4: ftp://ftp.openbsd.org/pub/OpenBSD/patches/4.4/common/007_openssl.patch These patches are also available in the OPENBSD_4_3 and OPENBSD_4_4 stable CVS branches.