Vulnerability · Published Aug 7, 2021 · Assigned by mitre
CVE-2021-38173
Critical 9.8
In plain English
A critical-severity security flaw in the btrbk package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 3.2% (higher than 88% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)9.8Critical
Exploit odds (30 days)3.2%top 12.0% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | btrbk | 0.27.1-2 | DEBIAN-CVE-2021-38173 |
| Debian:13 | btrbk | 0.27.1-2 | DEBIAN-CVE-2021-38173 |
| Debian:14 | btrbk | 0.27.1-2 | DEBIAN-CVE-2021-38173 |
Affected products (as reported)
References
- https://github.com/digint/btrbk/commit/58212de771c381cd4fa05625927080bf264e9584 x_refsource_MISC
- https://github.com/digint/btrbk/blob/master/ChangeLog x_refsource_CONFIRM
- [debian-lts-announce] 20210905 [SECURITY] [DLA 2755-1] btrbk security update mailing-list, x_refsource_MLIST
- FEDORA-2022-dc62389784 vendor-advisory, x_refsource_FEDORA
- FEDORA-2022-a66734e7a2 vendor-advisory, x_refsource_FEDORA