CVE-2017-16548

critical

Published 2017-11-06 · Modified 2026-05-13

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CVSS v3

9.8

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v4 NEW

—

not yet in upstream

VIR risk

9.8

Description

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.

Predictions

Exploit likelihood

97%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact

SUSE Affected 1 release

Version	Status	Fixed in
—	Affected	—

Ubuntu Affected 4 releases

Version	Status	Fixed in
17.10	Affected	—
16.04	Affected	—
14.04	Affected	—
12.04	Affected	—

Debian Mixed 8 releases

Version	Status	Fixed in
trixie	Fixed	`3.1.2-2.1`
sid	Fixed	`3.1.2-2.1`
forky	Fixed	`3.1.2-2.1`
bullseye	Fixed	`3.1.2-2.1`
bookworm	Fixed	`3.1.2-2.1`
9.0	Affected	—
8.0	Affected	—
7.0	Affected	—

Arch Fixed 1 release

Version	Status	Fixed in
—	Fixed	`3.1.3pre1-1`

Application impact

Vendor	Product	Versions	Fixed
samba	rsync	`{"startExcluding":"2.6.9","endIncluding":"3.1.2"}`

References

CWEs

CWE-125

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.