CVE-2021-33833
connman - security update
9.8
CRITICAL
CVSS 3.1
EPSS 0.15%
Description
ConnMan (aka Connection Manager) 1.30 through 1.39 has a stack-based buffer overflow in uncompress in dnsproxy.c via NAME, RDATA, or RDLENGTH (for A or AAAA).
How to fix CVE-2021-33833
To remediate CVE-2021-33833, upgrade the affected package to a fixed version below.
- Debian/connman—upgrade to 1.36-2.2 or later
- Debian/connman—upgrade to 1.33-3+deb9u3 or later
Is CVE-2021-33833 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 1.36-2.2
- from 0, < 1.33-3+deb9u3
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |