Bug 1278978 (CVE-2015-5327) - CVE-2015-5327 kernel: User triggerable out-of-bounds read
Summary: CVE-2015-5327 kernel: User triggerable out-of-bounds read
Status: CLOSED NOTABUG
Alias: CVE-2015-5327
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard: impact=low,public=20151109,reported=2...
Keywords: Security
Depends On:
Blocks: 1278980
TreeView+ depends on / blocked
 
Reported: 2015-11-06 22:15 UTC by Adam Mariš
Modified: 2019-06-08 20:50 UTC (History)
25 users (show)

(edit)
Clone Of:
(edit)
Last Closed: 2015-11-09 13:19:03 UTC


Attachments (Terms of Use)
Patch (972 bytes, patch)
2015-11-06 22:17 UTC, Adam Mariš
no flags Details | Diff

Description Adam Mariš 2015-11-06 22:15:38 UTC
An out-of-bounds memory read was found affecting kernels from 4.3-rc1 onwards. This vulnerability was caused by incorrect X.509 time validation in x509_decode_time() function in x509_cert_parser.c.

References:
upstream linux kernel commit cc25b994acfbc901429da682d0f73c190e960206

http://permalink.gmane.org/gmane.linux.kernel.commits.head/561953

http://seclists.org/oss-sec/2015/q4/390

Comment 1 Adam Mariš 2015-11-06 22:17 UTC
Created attachment 1090799 [details]
Patch

Comment 3 Adam Mariš 2015-11-09 15:57:43 UTC
Acknowledgments:

Red Hat would like to thank Mimi Zohar of IBM for reporting this issue.

Comment 4 Vladis Dronov 2015-11-26 15:25:31 UTC
Statement:

This issue does not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 5, 6, 7 and MRG-2, as the code introduced the flaw is not present in these products.


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