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Fencer Vulns
high 7.5

CVE-2018-5764 json

The parse_arguments function in options.c in rsyncd in rsync before 3.1.3 does not prevent multiple --protect-args uses, which allows remot…

published 2018-01-17 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-17533

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
6.4%
EPSS 6.4% chance of exploitation in 30 days, percentile 93%
public exploits
0
none known

Summary

The parse_arguments function in options.c in rsyncd in rsync before 3.1.3 does not prevent multiple --protect-args uses, which allows remote attackers to bypass an argument-sanitization protection mechanism.

Patch / fix

  • samba rsync 3.1.3
  • rsync Debian 14, Debian 13, Debian 12 3.1.2-2.2

debian advisories DEBIAN-CVE-2018-5764

  • rsync Ubuntu 14.04 LTS 3.1.0-2ubuntu0.4
  • rsync Ubuntu 16.04 LTS 3.1.1-3ubuntu1.2

ubuntu advisories UBUNTU-CVE-2018-5764

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • rsync SLES for SAP 11 SP4, SLES 11 SP4 3.0.4-2.53.6.1
  • rsync SLES for SAP 12 SP3, SLES for SAP 12 SP2, SLES for Raspberry Pi 12 SP2 +4 more 3.1.0-13.10.1

suse advisories SUSE-SU-2018:0172-1SUSE-SU-2018:0174-1

  • rsync openSUSE Tumbleweed 3.2.3-2.6

opensuse advisories openSUSE-SU-2024:11308-1

  • rsync Alpine 3.7, Alpine 3.6, Alpine 3.5 +1 more 3.1.3-r0

alpine advisories ALPINE-CVE-2018-5764

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • rsync Arch Linux 3.1.3pre1-1

arch linux advisories AVG-542

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2018-5764 updated cvss 6.3

rsync: sanitization bypass in parse_argument in options.c

  • Red Hat Enterprise Linux 5 rsync Red Hat Enterprise Linux 6 rsync Red Hat Enterprise Linux 7 rsync
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux 8 rsync, rsync-daemon
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

6.39% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:P/A:N

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.