VIR Vulnerability Intelligence Relay

CVE-2015-2157

low
Published 2015-03-27 · Modified 2026-05-06
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CVSS v3
—
CVSS v4 NEW
—
not yet in upstream
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 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 with source_tier=community-verified.

OS impact
fedora Fedora Affected 2 releases
VersionStatusFixed in
22 Affected —
20 Affected —
suse SUSE Affected 2 releases
VersionStatusFixed in
13.2 Affected —
13.1 Affected —
debian Debian Mixed 6 releases
VersionStatusFixed in
trixie Fixed 0.63-10
sid Fixed 0.63-10
forky Fixed 0.63-10
bullseye Fixed 0.63-10
bookworm Fixed 0.63-10
7.0 Affected —

Application impact
VendorProductVersionsFixed
puttyputty0.51
puttyputty0.52
puttyputty0.53b
puttyputty0.54
puttyputty0.55
puttyputty0.56
puttyputty0.57
puttyputty0.58
puttyputty0.59
puttyputty0.60
puttyputty0.61
puttyputty0.62
puttyputty0.63
simon_tathamputty0.53

References

CWEs

CWE-200

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.