CVE-2013-4852
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| 12.3 | Affected | — |
Debian Mixed 8 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 3.7.3-1 |
| sid | Fixed | 3.7.3-1 |
| forky | Fixed | 3.7.3-1 |
| bullseye | Fixed | 3.7.3-1 |
| bookworm | Fixed | 3.7.3-1 |
| 7.1 | Affected | — |
| 7.0 | Affected | — |
| 6.0 | Affected | — |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| winscp | winscp | {"endIncluding":"5.1.5"} | |
| winscp | winscp | 3.7.6 | |
| winscp | winscp | 3.8.2 | |
| winscp | winscp | 3.8_beta | |
| winscp | winscp | 4.0.4 | |
| winscp | winscp | 4.0.5 | |
| winscp | winscp | 4.2.6 | |
| winscp | winscp | 4.2.7 | |
| winscp | winscp | 4.2.8 | |
| winscp | winscp | 4.2.9 | |
| winscp | winscp | 4.3.2 | |
| winscp | winscp | 4.3.4 | |
| winscp | winscp | 4.3.5 | |
| winscp | winscp | 4.3.6 | |
| winscp | winscp | 4.3.7 | |
| winscp | winscp | 4.3.8 | |
| winscp | winscp | 4.3.9 | |
| winscp | winscp | 4.4.0 | |
| winscp | winscp | 5.0 | |
| winscp | winscp | 5.0.1 | |
| winscp | winscp | 5.0.2 | |
| winscp | winscp | 5.0.3 | |
| winscp | winscp | 5.0.4 | |
| winscp | winscp | 5.0.5 | |
| winscp | winscp | 5.0.6 | |
| winscp | winscp | 5.0.7 | |
| winscp | winscp | 5.0.8 | |
| winscp | winscp | 5.0.9 | |
| winscp | winscp | 5.1 | |
| winscp | winscp | 5.1.1 | |
| winscp | winscp | 5.1.2 | |
| winscp | winscp | 5.1.3 | |
| winscp | winscp | 5.1.4 | |
| putty | putty | 0.45 | |
| putty | putty | 0.46 | |
| putty | putty | 0.47 | |
| putty | putty | 0.48 | |
| putty | putty | 0.49 | |
| putty | putty | 0.50 | |
| putty | putty | 0.51 | |
| putty | putty | 0.52 | |
| putty | putty | 0.53b | |
| putty | putty | 0.54 | |
| putty | putty | 0.55 | |
| putty | putty | 0.56 | |
| putty | putty | 0.57 | |
| putty | putty | 0.58 | |
| putty | putty | 0.59 | |
| putty | putty | 0.60 | |
| putty | putty | 0.61 | |
| putty | putty | 2010-06-01 | |
| simon_tatham | putty | {"endIncluding":"0.62"} | |
| simon_tatham | putty | 0.53 | |
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/54379
- 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-stringlen.html
- http://www.debian.org/security/2013/dsa-2736
- http://www.search-lab.hu/advisories/secadv-20130722
- https://security-tracker.debian.org/tracker/CVE-2013-4852
CWEs
CWE-189
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.