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.
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
| Link | Tags |
|---|---|
| http://marc.info/?l=bugtraq&m=144050155601375&w=2 | third party advisory vendor advisory |
| http://marc.info/?l=bugtraq&m=141576985122836&w=2 | third party advisory 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 | vendor advisory |
| http://www-01.ibm.com/support/docview.wss?uid=isg3T1020637 | third party advisory |
| http://openwall.com/lists/oss-security/2014/01/29/2 | third party advisory mailing list |
| http://osvdb.org/102611 | vdb entry broken link |
| http://secunia.com/advisories/60184 | third party advisory |
| http://www.securityfocus.com/bid/65230 | vdb entry third party advisory |
| http://openwall.com/lists/oss-security/2014/01/29/10 | third party advisory mailing list |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/90819 | vdb entry third party advisory |