CVE-2021-46828
libtirpc - security update
7.5
HIGH
CVSS 3.1
EPSS 1.2%
Description
In libtirpc before 1.3.3rc1, remote attackers could exhaust the file descriptors of a process that uses libtirpc because idle TCP connections are mishandled. This can, in turn, lead to an svc_run infinite loop without accepting new connections.
How to fix CVE-2021-46828
To remediate CVE-2021-46828, upgrade the affected package to a fixed version below.
- Alpine/libtirpc—upgrade to 1.3.1-r1 or later
- —upgrade to 1.3.1-1+deb11u1 or later
- —upgrade to 1.1.4-0.4+deb10u1 or later
- —upgrade to 1.3.1-1+deb11u1 or later
Is CVE-2021-46828 being exploited?
Low — EPSS is 1.2%, meaning exploitation activity has not been observed at scale.
Affected packages (4)
- from 0, < 1.3.1-r1
- from 0, < 1.3.1-1+deb11u1
- from 0, < 1.1.4-0.4+deb10u1
- from 0, < 1.3.1-1+deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |