CVE-2021-3905
HIGH
7.5
CVSS Score
Published: August 23, 2022 at 12:00 AM UTC
Updated: June 17, 2026 at 04:05 AM UTC
4 products affected across 4 vendorsFedoraUbuntu LinuxOpenvswitch
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Severity
HIGH7.5
Exploit prediction
EPSS 2%
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Ubuntu Linux· Canonicalrubygems
95%95%
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (6)
Issue TrackingPatchThird Party Advisory
Source: [email protected]
https://bugzilla.redhat.com/show_bug.cgi?id=2019692ExploitIssue TrackingPatchThird Party Advisory
Source: [email protected]
https://github.com/openvswitch/ovs-issues/issues/226PatchThird Party Advisory
Source: [email protected]
https://github.com/openvswitch/ovs/commit/803ed12e31b0377c37d7aa8c94b3b92f2081e349CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-401
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