← back
CVE-2013-4207

CVE-2013-4207

EPSS 1.8%
Buffer overflow in sshbn.c in PuTTY before 0.63 allows remote SSH servers to cause a denial of service (crash) via an invalid DSA signature that is not properly handled during computation of a modular inverse and triggers the overflow during a division by zero by the bignum functionality, a different vulnerability than CVE-2013-4206.
Affected products
n/a · n/a

Want to know if your infrastructure is exposed to this?

Talk to TrueHacking →
References
http://lists.opensuse.org/opensuse-updates/2013-08/msg00035.htmlhttp://secunia.com/advisories/54379http://secunia.com/advisories/54533http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-bignum-division-by-zero.htmlhttp://www.debian.org/security/2013/dsa-2736http://www.openwall.com/lists/oss-security/2013/08/06/11