Bug 1653993 (CVE-2018-19591) - CVE-2018-19591 glibc: file descriptor leak in if_nametoindex() in sysdeps/unix/sysv/linux/if_index.c
Summary: CVE-2018-19591 glibc: file descriptor leak in if_nametoindex() in sysdeps/uni...
Status: CLOSED NOTABUG
Alias: CVE-2018-19591
Product: Security Response
Classification: Other
Component: vulnerability   
(Show other bugs)
Version: unspecified
Hardware: All Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard: impact=moderate,public=20181127,repor...
Keywords: Security
Depends On: 1654010 1654000
Blocks: 1654004
TreeView+ depends on / blocked
 
Reported: 2018-11-27 19:58 UTC by Laura Pardo
Modified: 2018-12-04 02:22 UTC (History)
18 users (show)

Fixed In Version: glibc 2.29
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Environment:
Last Closed: 2018-11-30 10:05:16 UTC
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Regression: ---
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CRM:
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---


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External Trackers
Tracker ID Priority Status Summary Last Updated
Sourceware 23927 None None None 2018-11-27 20:28 UTC

Description Laura Pardo 2018-11-27 19:58:55 UTC
A flaw was found in glibc before version 2.29. A file descriptor leak in if_nametoindex can lead to a denial of service due to resource exhaustion when processing getaddrinfo calls with crafted host names.


References:
https://sourceware.org/bugzilla/show_bug.cgi?id=23927

Upstream Patch:
https://sourceware.org/ml/libc-alpha/2018-11/msg00698.html

Comment 1 Laura Pardo 2018-11-27 20:01:25 UTC
Created glibc tracking bugs for this issue:

Affects: fedora-all [bug 1654000]

Comment 3 Stefan Cornelius 2018-11-30 10:05:27 UTC
Statement:

This issue did not affect the versions of glibc as shipped with Red Hat Enterprise Linux 5, 6, and 7.

Comment 4 Fedora Update System 2018-12-04 02:22:52 UTC
glibc-2.27-35.fc28 has been pushed to the Fedora 28 stable repository. If problems still persist, please make note of it in this bug report.


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