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CVE-2021-3905

Date: August 22, 2022

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.

Severity Score

Related Resources (9)

https://github.com/openvswitch/ovs/commit/803ed12e31b0377c37d7aa8c94b3b92f2081e349
https://github.com/openvswitch/ovs-issues/issues/226
https://nvd.nist.gov/vuln/detail/CVE-2021-3905
https://access.redhat.com/security/cve/CVE-2021-3905
https://security.gentoo.org/glsa/202311-16
https://ubuntu.com/security/CVE-2021-3905
https://people.canonical.com/~ubuntu-security/cve/CVE-2021-3905
https://bugzilla.redhat.com/show_bug.cgi?id=2019692
https://www.mend.io/vulnerability-database/CVE-2021-3905

Severity Score

Weakness Type (CWE)

Missing Release of Memory after Effective Lifetime

CWE-401

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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