CVE-2017-6542
Description
The ssh_agent_channel_data function in PuTTY before 0.68 allows remote attackers to have unspecified impact via a large length value in an agent protocol message and leveraging the ability to connect to the Unix-domain socket representing the forwarded agent connection, which trigger a 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
| OS | Version | Status | Fixed in |
|---|---|---|---|
| suse | 42.2 | affected | |
| debian | bookworm | fixed | 0.67-3 |
| debian | bullseye | fixed | 0.67-3 |
| debian | forky | fixed | 0.67-3 |
| debian | sid | fixed | 0.67-3 |
| debian | trixie | fixed | 0.67-3 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| putty | putty | {"endIncluding":"0.67"} | |
References
- http://lists.opensuse.org/opensuse-updates/2017-03/msg00055.html
- http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-agent-fwd-overflow.html
- http://www.securityfocus.com/bid/97156
- http://www.securitytracker.com/id/1038067
- https://git.tartarus.org/?p=simon/putty.git%3Ba=commitdiff%3Bh=4ff22863d895cb7ebfced4cf923a012a614adaa8
- https://security.gentoo.org/glsa/201703-03
- https://security.gentoo.org/glsa/201706-09
- https://www.exploit-db.com/exploits/42137/
- https://security-tracker.debian.org/tracker/CVE-2017-6542
CWEs
CWE-119
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.