CVE-2021-29488
5.3
MEDIUM
CVSS 3.1
EPSS 0.92%
Description
SABnzbd is an open source binary newsreader. A vulnerability was discovered in SABnzbd that could trick the `filesystem.renamer()` function into writing downloaded files outside the configured Download Folder via malicious PAR2 files. A patch was released as part of SABnzbd 3.2.1RC1. As a workaround, limit downloads to NZBs without PAR2 files, deny write permissions to the SABnzbd process outside areas it must access to perform its job, or update to a fixed version.
How to fix CVE-2021-29488
To remediate CVE-2021-29488, upgrade the affected package to a fixed version below.
- —upgrade to 3.1.1+dfsg-2+deb11u1 or later
Is CVE-2021-29488 being exploited?
Low — EPSS is 0.9%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 3.1.1+dfsg-2+deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |