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.
References (7)
Core 7
Core References
Third Party Advisory vendor-advisory
x_refsource_debian
http://www.debian.org/security/2015/dsa-3409
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
http://lists.fedoraproject.org/pipermail/package-announce/2015-December/173021.html
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
http://lists.fedoraproject.org/pipermail/package-announce/2015-December/173094.html
Third Party Advisory, VDB Entry vdb-entry
x_refsource_sectrack
http://www.securitytracker.com/id/1034308
Vendor Advisory x_refsource_confirm
http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-ech-overflow.html
Third Party Advisory vendor-advisory
x_refsource_gentoo
https://security.gentoo.org/glsa/201606-01
Mailing List vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-updates/2015-11/msg00099.html
Scores
EPSS
0.0174
EPSS Percentile
82.7%
Details
CWE
CWE-189
Status
published
Products (4)
opensuse/leap
42.1
opensuse/opensuse
13.1
opensuse/opensuse
13.2
simon_tatham/putty
< 0.65
Published
Dec 07, 2015
Tracked Since
Feb 18, 2026