Vulnerability Description
Integer overflow in PuTTY 0.62 and earlier, WinSCP before 5.1.6, and other products that use PuTTY allows remote SSH servers to cause a denial of service (crash) and possibly execute arbitrary code in certain applications that use PuTTY via a negative size value in an RSA key signature during the SSH handshake, which triggers a heap-based buffer overflow.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Winscp | Winscp | <= 5.1.5 |
| Debian | Debian Linux | 6.0 |
| Opensuse | Opensuse | 12.3 |
| Putty | Putty | 0.45 |
| Simon Tatham | Putty | <= 0.62 |
Related Weaknesses (CWE)
References
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=718779
- http://lists.opensuse.org/opensuse-updates/2013-08/msg00035.html
- http://lists.opensuse.org/opensuse-updates/2013-08/msg00041.html
- http://secunia.com/advisories/54379Vendor Advisory
- http://secunia.com/advisories/54517
- http://secunia.com/advisories/54533
- http://svn.tartarus.org/sgt?view=revision&sortby=date&revision=9896
- http://winscp.net/tracker/show_bug.cgi?id=1017
- http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-signature-stringVendor Advisory
- http://www.debian.org/security/2013/dsa-2736
- http://www.search-lab.hu/advisories/secadv-20130722
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=718779
- http://lists.opensuse.org/opensuse-updates/2013-08/msg00035.html
- http://lists.opensuse.org/opensuse-updates/2013-08/msg00041.html
- http://secunia.com/advisories/54379Vendor Advisory
FAQ
What is CVE-2013-4852?
CVE-2013-4852 is a vulnerability with a CVSS score of 6.8 (MEDIUM). Integer overflow in PuTTY 0.62 and earlier, WinSCP before 5.1.6, and other products that use PuTTY allows remote SSH servers to cause a denial of service (crash) and possibly execute arbitrary code in...
How severe is CVE-2013-4852?
CVE-2013-4852 has been rated MEDIUM with a CVSS base score of 6.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2013-4852?
Check the references section above for vendor advisories and patch information. Affected products include: Winscp Winscp, Debian Debian Linux, Opensuse Opensuse, Putty Putty, Simon Tatham Putty.