CVE-2019-3464
9.8
CRITICAL · CVSS 3.1 · EPSS 4.7% (pctl 92)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
Description
Insufficient sanitization of environment variables 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.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 4.7% — more likely to be exploited than 92% of all CVEs |
| Weakness | CWE-665 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2019-02-06 |
| Last modified | 2026-06-17 |
Affected (4)
| Vendor | Product |
|---|---|
| canonical | ubuntu linux |
| debian | debian linux |
| fedoraproject | fedora |
| pizzashack | rssh |
References
- http://seclists.org/fulldisclosure/2021/May/78
- http://www.securityfocus.com/bid/106839
- https://lists.debian.org/debian-lts-announce/2019/02/msg00007.html
- 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/202007-29
- https://tracker.debian.org/news/1026713/accepted-rssh-234-5deb9u2-source-amd64-into-stable-embargoed-stable/
- https://usn.ubuntu.com/3946-1/
- https://www.debian.org/security/2019/dsa-4382
- http://seclists.org/fulldisclosure/2021/May/78
- http://www.securityfocus.com/bid/106839
- https://lists.debian.org/debian-lts-announce/2019/02/msg00007.html
- 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/202007-29
- https://tracker.debian.org/news/1026713/accepted-rssh-234-5deb9u2-source-amd64-into-stable-embargoed-stable/
- https://usn.ubuntu.com/3946-1/
- https://www.debian.org/security/2019/dsa-4382
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