CVE-2021-38173
9.8 CRITICALBtrbk before 0.31.2 allows command execution because of the mishandling of remote hosts filtering SSH commands using ssh_filter_btrbk.sh ...
Published: 2021-08-07 · Last updated: 2026-06-17
Severity and scoring
- CVSS
- 9.8 CRITICAL
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CWE
- CWE-77
Affected products
| Vendor | Product |
|---|---|
| debian | btrbk, debian_linux, fedora |
| digint | btrbk, debian_linux, fedora |
| fedoraproject | btrbk, debian_linux, fedora |
Description
Btrbk before 0.31.2 allows command execution because of the mishandling of remote hosts filtering SSH commands using ssh_filter_btrbk.sh in authorized_keys.
Source: NVD
References
- [NVD]https://nvd.nist.gov/vuln/detail/CVE-2021-38173
- [Other]https://github.com/digint/btrbk/blob/master/ChangeLog
- [Patch]https://github.com/digint/btrbk/commit/58212de771c381cd4fa05625927080bf264e9584
- [Other]https://lists.debian.org/debian-lts-announce/2021/09/msg00002.html
- [Other]https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BP2T32JMENJFRP2HWXR7FTTZVRTTPECL/
- [Other]https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LM7GLTUN5YS4KE2RNBX732EAMVVGNEX3/
- [Other]https://github.com/digint/btrbk/blob/master/ChangeLog
- [Patch]https://github.com/digint/btrbk/commit/58212de771c381cd4fa05625927080bf264e9584
- [Other]https://lists.debian.org/debian-lts-announce/2021/09/msg00002.html
- [Other]https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BP2T32JMENJFRP2HWXR7FTTZVRTTPECL/
- [Other]https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LM7GLTUN5YS4KE2RNBX732EAMVVGNEX3/
Related CVEs
Same vendor
- CVE-2026-49975 — Memory Allocation with Excessive Size Value vulnerability in Apache HTTP Server's mod_http leads to denial of service via malicious HTTP ... (7.5 HIGH)
- CVE-2026-31431 — In the Linux kernel, the following vulnerability has been resolved: crypto: algif_aead - Revert to operating out-of-place This mostly r... (7.8 HIGH)
- CVE-2026-4775 — A flaw was found in the libtiff library (7.8 HIGH)
- CVE-2026-3497 — Vulnerability in the OpenSSH GSSAPI delta included in various Linux distributions (7.5 HIGH)
- CVE-2026-2219 — It was discovered that dpkg-deb (a component of dpkg, the Debian package management system) does not properly validate the end of the dat... (7.5 HIGH)
Same CWE
- CVE-2024-24909 — Dell OpenManage Integration with Microsoft Windows Admin Center contains a Remote Code Execution vulnerability in the gateway plugin (8.8 HIGH)
- CVE-2025-56814 — A code injection vulnerability in the wxExecute() function of OpenCPN v5.12.0 allows attackers to execute arbitrary code via embedding sh... (7.8 HIGH)
- CVE-2026-12223 — A vulnerability was identified in Yealink SIP-T46U 108.86.0.118 (5.5 MEDIUM)
- CVE-2026-12219 — A flaw has been found in Yealink SIP-T46U 108.86.0.118 (6.3 MEDIUM)
- CVE-2026-12197 — A security flaw has been discovered in Ruijie EG105G-P 2.340 (7.2 HIGH)