Bug 1300299 (CVE-2015-8776) - CVE-2015-8776 glibc: Segmentation fault caused by passing out-of-range data to strftime()
Summary: CVE-2015-8776 glibc: Segmentation fault caused by passing out-of-range data t...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2015-8776
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: 1300300 1358011 1374658
Blocks: 1300316 1386080 1415638
TreeView+ depends on / blocked
 
Reported: 2016-01-20 12:42 UTC by Adam Mariš
Modified: 2021-02-17 04:29 UTC (History)
21 users (show)

Fixed In Version: glibc 2.23
Clone Of:
Environment:
Last Closed: 2019-06-08 02:47:32 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2017:0680 0 normal SHIPPED_LIVE Moderate: glibc security and bug fix update 2017-03-21 12:36:34 UTC
Red Hat Product Errata RHSA-2017:1916 0 normal SHIPPED_LIVE Moderate: glibc security, bug fix, and enhancement update 2017-08-01 18:05:43 UTC
Sourceware 18985 0 None None None 2019-04-10 13:04:47 UTC

Description Adam Mariš 2016-01-20 12:42:55 UTC 
It was found that out-of-range time values passed to the strftime function may cause it to crash, leading to a denial of service, or potentially disclosure information.

Upstream bug:

https://sourceware.org/bugzilla/show_bug.cgi?id=18985

CVE assignment:

http://seclists.org/oss-sec/2016/q1/153
Comment 1 Adam Mariš 2016-01-20 12:45:19 UTC 
Created glibc tracking bugs for this issue:

Affects: fedora-all [bug 1300300]
Comment 2 Huzaifa S. Sidhpurwala 2016-01-21 07:52:30 UTC 
Upstream commit at:

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=d36c75fc0d44deec29635dd239b0fbd206ca49b7
Comment 3 Huzaifa S. Sidhpurwala 2016-01-22 06:14:04 UTC 
Public reproducer available at:

https://sourceware.org/git/gitweb.cgi?p=glibc.git;a=blob_plain;f=time/tst-strftime.c;h=af3ff72faf9588126fb269b0e9080357c32b5fcb;hb=d36c75fc0d44deec29635dd239b0fbd206ca49b7
Comment 6 Martin Prpič 2016-07-07 07:56:39 UTC 
Mitigation:

Check time values before they are passed to strftime, or call strftime only with struct tm values computed by gmtime or localtime.
Comment 8 errata-xmlrpc 2017-03-21 10:35:11 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2017:0680 https://rhn.redhat.com/errata/RHSA-2017-0680.html
Comment 10 errata-xmlrpc 2017-08-01 18:12:47 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2017:1916 https://access.redhat.com/errata/RHSA-2017:1916
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