{"id":"CVE-2013-4207","details":"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.","modified":"2026-04-16T06:19:56.055956911Z","published":"2013-08-19T23:55:08Z","related":["openSUSE-SU-2024:10399-1"],"references":[{"type":"ADVISORY","url":"http://secunia.com/advisories/54379"},{"type":"ADVISORY","url":"http://secunia.com/advisories/54533"},{"type":"ADVISORY","url":"http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-bignum-division-by-zero.html"},{"type":"ADVISORY","url":"http://www.debian.org/security/2013/dsa-2736"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-updates/2013-08/msg00035.html"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2013/08/06/11"}],"schema_version":"1.7.5"}