VulnerabilityModified
CVE-2021-3905
A memory leak was found in Open vSwitch (OVS) during userspace IP fragmentation processing.
HIGH 7.5EPSS 1.99%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.99%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a 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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.99% probability · 80th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-401
- Affected
- openvswitch/openvswitch · redhat/enterprise linux fast datapath · canonical/ubuntu linux · fedoraproject/fedora
- Source
- secalert@redhat.com
References
- https://access.redhat.com/security/cve/CVE-2021-3905Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2019692Issue Tracking, Patch, Third Party Advisory
- https://github.com/openvswitch/ovs-issues/issues/226Exploit, Issue Tracking, Patch, Third Party Advisory
- https://github.com/openvswitch/ovs/commit/803ed12e31b0377c37d7aa8c94b3b92f2081e349Patch, Third Party Advisory
- https://security.gentoo.org/glsa/202311-16
- https://ubuntu.com/security/CVE-2021-3905Patch, Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2021-3905Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2019692Issue Tracking, Patch, Third Party Advisory
- https://github.com/openvswitch/ovs-issues/issues/226Exploit, Issue Tracking, Patch, Third Party Advisory
- https://github.com/openvswitch/ovs/commit/803ed12e31b0377c37d7aa8c94b3b92f2081e349Patch, Third Party Advisory
- https://security.gentoo.org/glsa/202311-16
- https://ubuntu.com/security/CVE-2021-3905Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.