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
Alias: CVE-2017-16548
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
Whiteboard: impact=moderate,public=20171031,repor...
Depends On: 1511412 1511413 1511414
Blocks: 1511417
TreeView+ depends on / blocked
Reported: 2017-11-09 10:11 UTC by Adam Mariš
Modified: 2019-06-08 22:29 UTC (History)
6 users (show)

Fixed In Version:
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Clone Of:
Last Closed: 2017-11-14 11:16:31 UTC

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Description Adam Mariš 2017-11-09 10:11:34 UTC
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:


Upstream patch:


Comment 1 Adam Mariš 2017-11-09 10:12:02 UTC
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 11:16:42 UTC

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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