CVE-2017-16548: canonical ubuntu_linux Out-of-bounds Read
Vulnerability summary
CVE-2017-16548 is a critical (CVSS 9.8) Out-of-bounds Read vulnerability in canonical ubuntu_linux. EPSS estimates a 5.78% chance of exploitation in the next 30 days, higher than 93% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 6 · Related 4Timeline
- 06-11-2017PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
6 scores · 4 sources · 3 versions- OSV · AlpineEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
5.78%
Chance of exploitation in the next 30 days
Percentile
93%
Versus all other CVEs
30-day change
0.00 pp
From 5.78% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian2 products
- rsync< 3.1.2-2.1
- debian_linuxEOL7.0 | 8.0 | 9.0
Mageia2 products
- rsync< 3.1.1-5.3.mga5
- rsync< 3.1.2-1.2.mga6
Alpine1 product
- rsync< 3.1.2-r7 | < 3.1.2-r3 | < 3.1.2-r6
Canonical1 product
- ubuntu_linuxEOL12.04 | 14.04 | 16.04 | 17.10
Samba1 product
- rsync> 2.6.9, ≤ 3.1.2
Ubuntu1 product
- rsync< 3.1.0-2ubuntu0.4 | < 3.1.1-3ubuntu1.2
6 vendors · 8 products
References
14 links
- lists.debian.org/debian-lts-announce/2017/12/msg00020.htmlMailing ListX Refsource MLISTThird Party Advisory