Bug 1278978 (CVE-2015-5327)

Summary: CVE-2015-5327 kernel: User triggerable out-of-bounds read
Product: [Other] Security Response Reporter: Adam Mariš <amaris>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED NOTABUG QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: agordeev, aquini, bhu, dhoward, esammons, fhrbata, iboverma, jen, jkacur, joelsmith, jross, kernel-mgr, kstutsma, lgoncalv, lwang, matt, mcressma, mguzik, nmurray, osoukup, pholasek, plougher, rvrbovsk, security-response-team, vdronov, williams
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
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Last Closed: 2015-11-09 13:19:03 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Bug Depends On:    
Bug Blocks: 1278980    
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Description Flags
Patch none

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 22:17:13 UTC 
Created attachment 1090799 [details]
Patch
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.