Description
The hash_buffer function in schnorr.c in OpenSSH through 6.4, when Makefile.inc is modified to enable the J-PAKE protocol, does not initialize certain data structures, which might allow remote attackers to cause a denial of service (memory corruption) or have unspecified other impact via vectors that trigger an error condition.
References
- HPSBMU03409 vendor-advisory
- HPSBUX03188 vendor-advisory
- http://www.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/Attic/schnorr.c.diff?r1=1.9%3Br2=1.10%3Bf=h
- http://www.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/schnorr.c#rev1.10
- http://www-01.ibm.com/support/docview.wss?uid=isg3T1020637
- [oss-security] 20140128 OpenSSH J-PAKE vulnerability (no cause for panic! remain calm!) mailing-list
- 102611 vdb-entry
- 60184 third-party-advisory
- 65230 vdb-entry
- [oss-security] 20140129 Re: OpenSSH J-PAKE vulnerability (no cause for panic! remain calm!) mailing-list
- openssh-cve20141692-code-exec(90819) vdb-entry