Bug 1463288 (CVE-2014-9984)

Summary: CVE-2014-9984 glibc: nscd buffer manipulation vulnerability could lead to code execution or crash
Product: [Other] Security Response Reporter: Martin Prpič <mprpic>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED NOTABUG QA Contact:
Severity: urgent Docs Contact:
Priority: urgent    
Version: unspecifiedCC: arjun.is, ashankar, codonell, dj, fweimer, glibc-bugzilla, law, mfabian, mnewsome, mprpic, pfrankli, siddhesh, tcallawa
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: glibc 2.20 Doc Type: If docs needed, set a value
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Clone Of: Environment:
Last Closed: 2017-06-20 14:02:00 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Description Martin Prpič 2017-06-20 13:58:37 UTC 
A flaw was found in glibc where the size of an internal buffer was not correctly computed when processing netgroup requests. A remote attacker able to send netgroup requests that were processed by the nscd daemon could cause the ncsd to crash or, potentially, execute code as the user running nscd.

Upstream bug:

https://sourceware.org/bugzilla/show_bug.cgi?id=16695

Upstream patch:

https://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=c44496df2f090a56d3bf75df930592dac6bba46f
Comment 1 Martin Prpič 2017-06-20 13:58:57 UTC 
Statement:

This issue did not affect the versions of glibc as shipped with Red Hat Enterprise Linux 5 as they did not include support for netgroups. Red Hat Enterprise Linux 6 and 7 already include the fixed version of the package.
Comment 2 Tom "spot" Callaway 2017-06-20 15:21:01 UTC 
All versions of glibc-linux-arm-gnu in Fedora are newer than 2.20.