Bug 1511411 – CVE-2017-16548 rsync: Heap-based buffer over-read in receive_xattr function

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Bug 1511411 - (CVE-2017-16548) CVE-2017-16548 rsync: Heap-based buffer over-read in receive_xattr function

Summary:	CVE-2017-16548 rsync: Heap-based buffer over-read in receive_xattr function

Status:	CLOSED WONTFIX

Aliases:	CVE-2017-16548

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

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
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URL:
Whiteboard:	impact=moderate,public=20171031,repor...
Keywords:	Security

Depends On:	1511412 1511413 1511414
Blocks:	1511417
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Reported:	2017-11-09 05:11 EST by Adam Mariš
Modified:	2018-01-18 17:35 EST (History)
CC List:	6 users (show)

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Last Closed:	2017-11-14 06:16:31 EST
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Description Adam Mariš 2017-11-09 05:11:34 EST

The receive_xattr function in xattrs.c in rsync 3.1.2 and 3.1.3-development does not check for a trailing '\0' character in an xattr name, which allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) or possibly have unspecified other impact by sending crafted data to the daemon.

Upstream bug:

https://bugzilla.samba.org/show_bug.cgi?id=13112

Upstream patch:

https://git.samba.org/rsync.git/?p=rsync.git;a=commit;h=47a63d90e71d3e19e0e96052bb8c6b9cb140ecc1

Comment 1 Adam Mariš 2017-11-09 05:12:02 EST

Created rsync tracking bugs for this issue:

Affects: fedora-all [bug 1511414]


Created rsync-bpc tracking bugs for this issue:

Affects: epel-7 [bug 1511413]
Affects: fedora-all [bug 1511412]

Comment 2 Stefan Cornelius 2017-11-14 06:16:42 EST

Statement:

Red Hat Product Security has rated this issue as having Moderate 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/.

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