CVE-2016-2563
critical
CVSS v3
9.8
CVSS v4 NEW
—
VIR risk
9.8
Description
Stack-based buffer overflow in the SCP command-line utility in PuTTY before 0.67 and KiTTY 0.66.6.3 and earlier allows remote servers to cause a denial of service (stack memory corruption) or execute arbitrary code via a crafted SCP-SINK file-size response to an SCP download request.
Predictions
Exploit likelihood
97%
Patch ETA
—
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 |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 0.67-1 |
| debian | bullseye | fixed | 0.67-1 |
| debian | forky | fixed | 0.67-1 |
| debian | sid | fixed | 0.67-1 |
| debian | trixie | fixed | 0.67-1 |
References
- https://www.suse.com/security/cve/CVE-2016-2563.html
- http://lists.opensuse.org/opensuse-updates/2016-05/msg00131.html
- http://seclists.org/fulldisclosure/2016/Mar/22
- http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-pscp-sink-sscanf.html
- http://www.securityfocus.com/bid/84296
- http://www.securitytracker.com/id/1035257
- https://github.com/tintinweb/pub/tree/master/pocs/cve-2016-2563
- https://security.gentoo.org/glsa/201606-01
- https://security-tracker.debian.org/tracker/CVE-2016-2563
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.