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CVE-2021-46828

HIGHCVSS 7.5/10EPSS 2.09%

Last modified

CVE-2021-46828 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 2.09% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability
2.09%

79.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
Libtirpc ProjectLibtirpc< 1.3.3
DebianDebian Linux10.0
DebianDebian Linux11.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-46828?
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 severe is CVE-2021-46828?
CVE-2021-46828 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 2.09% probability of exploitation in the next 30 days.
How do I fix CVE-2021-46828?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-46828?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST