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Bug 591664 (CVE-2016-6866) - <x11-misc/slock-1.3-r3 : segmentation fault on invalid password hash
Summary: <x11-misc/slock-1.3-r3 : segmentation fault on invalid password hash
Status: RESOLVED FIXED
Alias: CVE-2016-6866
Product: Gentoo Security
Classification: Unclassified
Component: Vulnerabilities (show other bugs)
Hardware: All Linux
: Normal minor
Assignee: Gentoo Security
URL: https://bugzilla.redhat.com/show_bug....
Whiteboard: B3 [noglsa cve]
Keywords:
Depends on:
Blocks:
 
Reported: 2016-08-19 08:39 UTC by Agostino Sarubbo
Modified: 2016-09-11 06:23 UTC (History)
2 users (show)

See Also:
Package list:
Runtime testing required: ---


Attachments

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Description Agostino Sarubbo gentoo-dev 2016-08-19 08:39:13 UTC
From ${URL} :

The screen locking application slock (http://tools.suckless.org/slock/)
calls crypt(3) and uses the return value for strcmp(3) without checking
to see if the return value of crypt(3) was a NULL pointer. If the hash
returned by (getspnam()->sp_pwdp) is invalid, crypt(3) will return NULL
and set errno to EINVAL. This will cause slock to segfault which then
leaves the machine unprotected.

References:

http://seclists.org/oss-sec/2016/q3/328
http://s1m0n.dft-labs.eu/files/slock/


@maintainer(s): after the bump, in case we need to stabilize the package, please let us know if it is ready for the stabilization or not.
Comment 1 Jeroen Roovers (RETIRED) gentoo-dev 2016-08-19 14:49:31 UTC
Patch applied in =x11-misc/slock-1.3-r3
Comment 2 Sergey Popov (RETIRED) gentoo-dev 2016-08-25 08:53:42 UTC
Arches, please test and mark stable =x11-misc/slock-1.3-r3

Target keywords: amd64 hppa x86
Comment 3 Jeroen Roovers (RETIRED) gentoo-dev 2016-08-28 08:51:50 UTC
Stable for HPPA.
Comment 4 Agostino Sarubbo gentoo-dev 2016-09-10 12:49:43 UTC
amd64 stable
Comment 5 Jeroen Roovers (RETIRED) gentoo-dev 2016-09-11 06:07:50 UTC
Stable for x86.
Comment 6 Yury German Gentoo Infrastructure gentoo-dev 2016-09-11 06:23:34 UTC
Arches and Maintainer(s), Thank you for your work.

GLSA Vote: No
Closing noglsa.