Bug 1175369 – CVE-2014-9402 glibc: denial of service in getnetbyname function

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Bug 1175369 - (CVE-2014-9402) CVE-2014-9402 glibc: denial of service in getnetbyname function

Summary:	CVE-2014-9402 glibc: denial of service in getnetbyname function

Status:	NEW

Aliases:	CVE-2014-9402

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	low Severity low
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
Docs Contact:

URL:
Whiteboard:	impact=low,public=20141120,reported=2...
Keywords:	Reopened, Security

Depends On:	1175370 1497132
Blocks:	1175371 1188240 1498774
	Show dependency tree / graph

Reported:	2014-12-17 10:28 EST by Vasyl Kaigorodov
Modified:	2018-04-10 04:20 EDT (History)
CC List:	15 users (show)

See Also:
Fixed In Version:
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2015-01-07 14:55:14 EST
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

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External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2018:0805	None	None	None	2018-04-10 04:20 EDT

Groups: None (edit)

Description Vasyl Kaigorodov 2014-12-17 10:28:06 EST

It was reported [1] that getnetbyname function in glibc 2.21 in earlier will enter an infinite loop if the DNS backend is activated in the system Name Service Switch configuration, and the DNS resolver receives a positive answer while processing the network name.

Upstream commit that fixes this issue:
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=11e3417af6e354f1942c68a271ae51e892b2814d

[1]: https://sourceware.org/bugzilla/show_bug.cgi?id=17630

Comment 1 Vasyl Kaigorodov 2014-12-17 10:29:00 EST

Created glibc tracking bugs for this issue:

Affects: fedora-all [bug 1175370]

Comment 2 Murray McAllister 2014-12-17 21:54:39 EST

MITRE assigned CVE-2014-9402 to this issue:

http://seclists.org/oss-sec/2014/q4/1080

Comment 5 Vincent Danen 2015-02-13 15:35:43 EST

Statement:

A non-standard system configuration ("networks: file dns" in /etc/nsswitch.conf) and possibly a DNS spoofing attack is required to exploit this flaw.

Red Hat Product Security has rated this issue as having Low security impact. This issue is not currently planned to be addressed in future updates. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.

Comment 9 errata-xmlrpc 2018-04-10 04:20:33 EDT

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2018:0805 https://access.redhat.com/errata/RHSA-2018:0805

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