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CVE-2015-2157

UnknownEPSS 0.58%

Last modified

CVE-2015-2157 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 0.58% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability
0.58%

43.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
DebianDebian Linux7.0
FedoraprojectFedora20
FedoraprojectFedora22
OpensuseOpensuse13.1
OpensuseOpensuse13.2
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

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2015-2157?
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.
How severe is CVE-2015-2157?
Severity scoring for CVE-2015-2157 is pending analysis. The EPSS model estimates a 0.58% probability of exploitation in the next 30 days.
How do I fix CVE-2015-2157?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2015-2157?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST