CVE-2015-2157

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.

Category

2.1
CVSS
Severity: Low
CVSS 2.0 •
EPSS 0.27%
Vendor Advisory fedoraproject.org Vendor Advisory debian.org Vendor Advisory fedoraproject.org Vendor Advisory opensuse.org Vendor Advisory fedoraproject.org Vendor Advisory org.uk Vendor Advisory org.uk
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.chiark.greenend.org.uk/~sgtatham/putty/changes.html patch vendor advisory
http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151933.html vendor advisory
http://www.securityfocus.com/bid/72825 vdb entry
http://www.debian.org/security/2015/dsa-3190 vendor advisory
http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151790.html vendor advisory
http://www.openwall.com/lists/oss-security/2015/02/28/4 mailing list
http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/private-key-not-wiped-2.html patch vendor advisory
http://www.openwall.com/lists/oss-security/2015/02/28/5 mailing list
http://lists.opensuse.org/opensuse-updates/2015-03/msg00032.html vendor advisory
http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151839.html vendor advisory

Frequently Asked Questions

What is the severity of CVE-2015-2157?
CVE-2015-2157 has been scored as a low severity vulnerability.
How to fix CVE-2015-2157?
To fix CVE-2015-2157, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2015-2157 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2015-2157 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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