Bug 1198192 (CVE-2015-2157) - CVE-2015-2157 putty: failure to scrub private keys from memory after use
Summary: CVE-2015-2157 putty: failure to scrub private keys from memory after use
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2015-2157
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1198194 1198195
Blocks:
TreeView+ depends on / blocked
 
Reported: 2015-03-03 14:30 UTC by Vasyl Kaigorodov
Modified: 2019-09-29 13:29 UTC (History)
3 users (show)

Fixed In Version: PuTTy 0.64
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2019-06-08 02:39:24 UTC
Embargoed:

Attachments (Terms of Use)

Description Vasyl Kaigorodov 2015-03-03 14:30:20 UTC 
It was reported [1] that PuTTy versions prior to 0.64 after loading a private key from a disk file, mistakenly leak a memory buffer containing a copy of the private key.
Upstream commit that fixes this:
http://tartarus.org/~simon-git/gitweb/?p=putty.git;a=commit;h=65f69bca7363ceceeac515ae2a82b8f8adc6404d

[1]: http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/private-key-not-wiped-2.html
Comment 1 Vasyl Kaigorodov 2015-03-03 14:34:06 UTC 
Created putty tracking bugs for this issue:

Affects: fedora-all [bug 1198194]
Affects: epel-all [bug 1198195]
Comment 2 Fedora Update System 2015-03-13 17:26:09 UTC 
putty-0.64-1.fc22 has been pushed to the Fedora 22 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 3 Fedora Update System 2015-03-14 09:13:38 UTC 
putty-0.64-1.fc20 has been pushed to the Fedora 20 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 4 Fedora Update System 2015-03-14 09:23:06 UTC 
putty-0.64-1.fc21 has been pushed to the Fedora 21 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 5 Fedora Update System 2015-03-25 19:57:27 UTC 
putty-0.63-4.el5 has been pushed to the Fedora EPEL 5 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 6 Fedora Update System 2015-03-25 20:00:10 UTC 
putty-0.63-4.el6 has been pushed to the Fedora EPEL 6 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 7 Product Security DevOps Team 2019-06-08 02:39:24 UTC 
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.
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