CVE-2021-3905

Public Exploit

Description

A memory leak was found in Open vSwitch (OVS) during userspace IP fragmentation processing. An attacker could use this flaw to potentially exhaust available memory by keeping sending packet fragments.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.08%
Vendor Advisory gentoo.org
Affected: n/a openvswitch (ovs)
Published at:
Updated at:

References

Link Tags
https://bugzilla.redhat.com/show_bug.cgi?id=2019692 issue tracking third party advisory patch
https://access.redhat.com/security/cve/CVE-2021-3905 third party advisory
https://ubuntu.com/security/CVE-2021-3905 third party advisory patch
https://github.com/openvswitch/ovs-issues/issues/226 issue tracking patch exploit third party advisory
https://github.com/openvswitch/ovs/commit/803ed12e31b0377c37d7aa8c94b3b92f2081e349 third party advisory patch
https://security.gentoo.org/glsa/202311-16 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-3905?
CVE-2021-3905 has been scored as a high severity vulnerability.
How to fix CVE-2021-3905?
To fix CVE-2021-3905, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-3905 being actively exploited in the wild?
It is possible that CVE-2021-3905 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-3905?
CVE-2021-3905 affects n/a openvswitch (ovs).
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