CVE-2015-5309
putty - security update
EPSS 1.7%
Description
Integer overflow in the terminal emulator in PuTTY before 0.66 allows remote attackers to cause a denial of service (memory corruption) or possibly execute arbitrary code via an ECH (erase characters) escape sequence with a large parameter value, which triggers a buffer underflow.
How to fix CVE-2015-5309
To remediate CVE-2015-5309, upgrade the affected package to a fixed version below.
- Debian/putty—upgrade to 0.66-1 or later
- Debian/putty—upgrade to 0.60+2010-02-20-1+squeeze4 or later
- Debian/putty—upgrade to 0.62-9+deb7u3 or later
Is CVE-2015-5309 being exploited?
Low — EPSS is 1.7%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 0.66-1
- from 0, < 0.60+2010-02-20-1+squeeze4
- from 0, < 0.62-9+deb7u3