CVE-2013-4207

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…

published August 19, 2013

CVSS
—
EPSS
2%
Percentile
78.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01827 · 78.5th percentile
Published
2013-08-19T23:00Z
EPSS history
Timeline
  • 19 AUG 23:00Z
    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…
    cvelistv5