CVE-2015-2157
low
CVSS v3
—
VIR risk
2.1
Description
The (1) ssh2_load_userkey and (2) ssh2_save_userkey functions in PuTTY 0.51 through 0.63 do not properly wipe SSH-2 private keys from memory, which allows local users to obtain sensitive information by reading the memory.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No vendor mitigations ingested yet for this CVE. The mitigation-content worker queues fetches as references arrive — check back in a few minutes, or see the references list below.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| suse | 13.1 | affected | |
| suse | 13.2 | affected | |
| debian | 7.0 | affected | |
| fedora | 20 | affected | |
| fedora | 22 | affected | |
| debian | bookworm | fixed | 0.63-10 |
| debian | bullseye | fixed | 0.63-10 |
| debian | forky | fixed | 0.63-10 |
| debian | sid | fixed | 0.63-10 |
| debian | trixie | fixed | 0.63-10 |
References
- http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151790.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151839.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151933.html
- http://lists.opensuse.org/opensuse-updates/2015-03/msg00032.html
- http://www.chiark.greenend.org.uk/~sgtatham/putty/changes.html
- http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/private-key-not-wiped-2.html
- http://www.debian.org/security/2015/dsa-3190
- http://www.openwall.com/lists/oss-security/2015/02/28/4
- http://www.openwall.com/lists/oss-security/2015/02/28/5
- http://www.securityfocus.com/bid/72825
- https://security-tracker.debian.org/tracker/CVE-2015-2157
CWEs
CWE-200
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Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.