Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Opensuse | Leap | 42.1 |
| Opensuse | Opensuse | 13.1 |
| Simon Tatham | Putty | <= 0.65 |
Related Weaknesses (CWE)
References
- http://lists.fedoraproject.org/pipermail/package-announce/2015-December/173021.h
- http://lists.fedoraproject.org/pipermail/package-announce/2015-December/173094.h
- http://lists.opensuse.org/opensuse-updates/2015-11/msg00099.html
- http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-ech-overflow.htmVendor Advisory
- http://www.debian.org/security/2015/dsa-3409
- http://www.securitytracker.com/id/1034308
- https://security.gentoo.org/glsa/201606-01
- http://lists.fedoraproject.org/pipermail/package-announce/2015-December/173021.h
- http://lists.fedoraproject.org/pipermail/package-announce/2015-December/173094.h
- http://lists.opensuse.org/opensuse-updates/2015-11/msg00099.html
- http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-ech-overflow.htmVendor Advisory
- http://www.debian.org/security/2015/dsa-3409
- http://www.securitytracker.com/id/1034308
- https://security.gentoo.org/glsa/201606-01
FAQ
What is CVE-2015-5309?
CVE-2015-5309 is a vulnerability with a CVSS score of 4.3 (MEDIUM). 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)...
How severe is CVE-2015-5309?
CVE-2015-5309 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2015-5309?
Check the references section above for vendor advisories and patch information. Affected products include: Opensuse Leap, Opensuse Opensuse, Simon Tatham Putty.