Bug 1542990 – CVE-2018-5380 quagga: bgpd can overrun internal BGP code-to-string conversion tables potentially allowing crash

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Bug 1542990 - (CVE-2018-5380) CVE-2018-5380 quagga: bgpd can overrun internal BGP code-to-string conversion tables potentially allowing crash

Summary:	CVE-2018-5380 quagga: bgpd can overrun internal BGP code-to-string conversion...

Status:	NEW

Aliases:	CVE-2018-5380

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=20180215,reported=2...
Keywords:	Security

Depends On:	1546005 1546006
Blocks:	1543001
	Show dependency tree / graph

Reported:	2018-02-07 09:13 EST by Adam Mariš
Modified:	2018-02-18 19:01 EST (History)
CC List:	7 users (show)

See Also:
Fixed In Version:	quagga 1.2.3
Doc Type:	If docs needed, set a value
Doc Text:	A vulnerability was found in Quagga, in the log formatting code. Specially crafted messages sent by BGP peers could cause Quagga to read one element past the end of certain static arrays, causing arbitrary binary data to appear in the logs or potentially, a crash.
Story Points:	---
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Last Closed:
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Regression:	---
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CRM:
Verified Versions:
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oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Attachments	(Terms of Use)
Upstream patch (3.83 KB, patch) 2018-02-07 09:24 EST, Adam Mariš	no flags	Details \| Diff
Add an attachment (proposed patch, testcase, etc.)

Groups: None (edit)

Description Adam Mariš 2018-02-07 09:13:58 EST

The Quagga BGP daemon, bgpd, can overrun internal BGP code-to-string conversion tables used for debug by 1 pointer value, based on input.

The impact is thought to be very low. The bgpd daemon likely will continue
running. Warning and debug messages in the logs may contain arbitrary bytes.

The issue can only be triggered by a configured peer, if there is sufficient
transport security.

All versions of quagga are affected.

Comment 1 Adam Mariš 2018-02-07 09:14:01 EST

Acknowledgments:

Name: the Quagga project

Comment 2 Adam Mariš 2018-02-07 09:24 EST

Created attachment 1392684 [details]
Upstream patch

Comment 3 Doran Moppert 2018-02-12 23:15:36 EST

External References:

https://www.quagga.net/security/Quagga-2018-1550.txt

Comment 4 Doran Moppert 2018-02-13 00:02:27 EST

Statement:

Red Hat Product Security has given this vulnerability a rating of Low. We believe the potential for a crash on supported architectures is very small.

Comment 5 Doran Moppert 2018-02-15 23:37:17 EST

Created quagga tracking bugs for this issue:

Affects: fedora-all [bug 1546006]

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