VulnerabilityModified
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.
LOW 2.1EPSS 0.58%
Does this matter?
Lower severity and a low EPSS score (0.58%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 2.0
- 2.1 LOWAV:L/AC:L/Au:N/C:P/I:N/A:N
- EPSS
- 0.58% probability · 46th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-200
- Affected
- debian/debian linux · fedoraproject/fedora · opensuse/opensuse · putty/putty · simon tatham/putty
- Source
- cve@mitre.org
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.htmlPatch, Vendor Advisory
- http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/private-key-not-wiped-2.htmlPatch, Vendor Advisory
- 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
- 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.htmlPatch, Vendor Advisory
- http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/private-key-not-wiped-2.htmlPatch, Vendor Advisory
- 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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.