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CVE-2019-3464
Insufficient sanitization of environment variables passed to rsync can bypass the restrictions imposed by rssh, a restricted shell that…
Critical9.8EPSS 4.7%
- Published
- Updated
- Reserved
- Assigned by
- debian
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 4.7% · top 8.2% of all CVEs (5 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Weakness
- Incomplete sanitization of environment variable
- CWE-665 (opens in a new tab)All about CWE-665 and its CVEs
Affected products
- affected All versions before 2.3.4-5+deb9u2 and 2.3.4-10
References (10)
- DSA-4382 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- [debian-lts-announce] 20190206 [SECURITY] [DLA 1660-1] rssh security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 106839 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- https://tracker.debian.org/news/1026713/accepted-rssh-234-5deb9u2-source-amd64-into-stable-embargoed-stable/ (opens in a new tab)x_refsource_MISCx_transferred
- USN-3946-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- FEDORA-2019-e47add6b2b (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- FEDORA-2019-d1487c13ac (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- FEDORA-2019-bfb407659e (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- GLSA-202007-29 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- 20210526 KL-001-2021-007: CommScope Ruckus IoT Controller Undocumented Account (opens in a new tab)mailing-listx_refsource_FULLDISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2019-3464)Record last updated .