CVE-2019-3463

Name: CVE-2019-3463
Creator: NVD / NIST
Published: 2019-02-06T19:29:00.35+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 4.87%

Last modified Jun 17, 2026

CVE-2019-3463 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Insufficient sanitization of arguments passed to rsync can bypass the restrictions imposed by rssh, a restricted shell that should restrict users to perform only rsync operations, resulting in the execution of arbitrary shell commands.. EPSS estimates a 4.87% chance of exploitation in the next 30 days.

Description

Insufficient sanitization of arguments passed to rsync can bypass the restrictions imposed by rssh, a restricted shell that should restrict users to perform only rsync operations, resulting in the execution of arbitrary shell commands.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

4.87%

90.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-88

Affected Software

Vendor	Product	Versions
Pizzashack	Rssh	2.3.4
Debian	Debian Linux	8.0
Debian	Debian Linux	9.0
Fedoraproject	Fedora	29
Fedoraproject	Fedora	30
Fedoraproject	Fedora	31
Canonical	Ubuntu Linux	14.04
Canonical	Ubuntu Linux	16.04
Canonical	Ubuntu Linux	18.04
Canonical	Ubuntu Linux	18.10

References

http://seclists.org/fulldisclosure/2021/May/78Mailing List, Not Applicable, Third Party Advisory
http://www.securityfocus.com/bid/106839Third Party Advisory, VDB Entry
https://lists.debian.org/debian-lts-announce/2019/02/msg00007.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HO3MDU3AH5SLYBKHH5PJ6PHC63ASIF42/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KR2OHTHMJVV4DO3HDRFQQZ5JENHDJQEN/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T42YYNWJZG422GATWAHAEK4A24OKY557/
https://security.gentoo.org/glsa/202007-29Third Party Advisory
https://tracker.debian.org/news/1026713/accepted-rssh-234-5deb9u2-source-amd64-into-stable-embargoed-stable/Third Party Advisory
https://usn.ubuntu.com/3946-1/Third Party Advisory
https://www.debian.org/security/2019/dsa-4382Third Party Advisory
http://seclists.org/fulldisclosure/2021/May/78Mailing List, Not Applicable, Third Party Advisory
http://www.securityfocus.com/bid/106839Third Party Advisory, VDB Entry
https://lists.debian.org/debian-lts-announce/2019/02/msg00007.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HO3MDU3AH5SLYBKHH5PJ6PHC63ASIF42/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KR2OHTHMJVV4DO3HDRFQQZ5JENHDJQEN/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T42YYNWJZG422GATWAHAEK4A24OKY557/
https://security.gentoo.org/glsa/202007-29Third Party Advisory
https://tracker.debian.org/news/1026713/accepted-rssh-234-5deb9u2-source-amd64-into-stable-embargoed-stable/Third Party Advisory
https://usn.ubuntu.com/3946-1/Third Party Advisory
https://www.debian.org/security/2019/dsa-4382Third Party Advisory

Timeline

Published: Feb 6, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-3463?

How severe is CVE-2019-3463?

CVE-2019-3463 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 4.87% probability of exploitation in the next 30 days.

How do I fix CVE-2019-3463?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-3463?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST