CVE-2021-3905
Open vSwitch OVS Memory Leak Denial of Service
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.
INFO
Published Date :
Aug. 23, 2022, 4:15 p.m.
Last Modified :
Nov. 21, 2024, 6:22 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
Affected Products
The following products are affected by CVE-2021-3905
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-3905.
| URL | Resource |
|---|---|
| https://access.redhat.com/security/cve/CVE-2021-3905 | Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=2019692 | Issue Tracking Patch Third Party Advisory |
| https://github.com/openvswitch/ovs-issues/issues/226 | Exploit Issue Tracking Patch Third Party Advisory |
| https://github.com/openvswitch/ovs/commit/803ed12e31b0377c37d7aa8c94b3b92f2081e349 | Patch Third Party Advisory |
| https://security.gentoo.org/glsa/202311-16 | |
| https://ubuntu.com/security/CVE-2021-3905 | Patch Third Party Advisory |
| https://access.redhat.com/security/cve/CVE-2021-3905 | Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=2019692 | Issue Tracking Patch Third Party Advisory |
| https://github.com/openvswitch/ovs-issues/issues/226 | Exploit Issue Tracking Patch Third Party Advisory |
| https://github.com/openvswitch/ovs/commit/803ed12e31b0377c37d7aa8c94b3b92f2081e349 | Patch Third Party Advisory |
| https://security.gentoo.org/glsa/202311-16 | |
| https://ubuntu.com/security/CVE-2021-3905 | Patch Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-3905 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-3905 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://access.redhat.com/security/cve/CVE-2021-3905 Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=2019692 Added Reference https://github.com/openvswitch/ovs/commit/803ed12e31b0377c37d7aa8c94b3b92f2081e349 Added Reference https://github.com/openvswitch/ovs-issues/issues/226 Added Reference https://security.gentoo.org/glsa/202311-16 Added Reference https://ubuntu.com/security/CVE-2021-3905 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Nov. 26, 2023
Action Type Old Value New Value Added Reference Red Hat, Inc. https://security.gentoo.org/glsa/202311-16 [No types assigned] -
Initial Analysis by [email protected]
Aug. 27, 2022
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://access.redhat.com/security/cve/CVE-2021-3905 No Types Assigned https://access.redhat.com/security/cve/CVE-2021-3905 Third Party Advisory Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=2019692 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=2019692 Issue Tracking, Patch, Third Party Advisory Changed Reference Type https://github.com/openvswitch/ovs/commit/803ed12e31b0377c37d7aa8c94b3b92f2081e349 No Types Assigned https://github.com/openvswitch/ovs/commit/803ed12e31b0377c37d7aa8c94b3b92f2081e349 Patch, Third Party Advisory Changed Reference Type https://github.com/openvswitch/ovs-issues/issues/226 No Types Assigned https://github.com/openvswitch/ovs-issues/issues/226 Exploit, Issue Tracking, Patch, Third Party Advisory Changed Reference Type https://ubuntu.com/security/CVE-2021-3905 No Types Assigned https://ubuntu.com/security/CVE-2021-3905 Patch, Third Party Advisory Added CWE NIST CWE-401 Added CPE Configuration OR *cpe:2.3:a:openvswitch:openvswitch:*:*:*:*:*:*:*:* versions up to (excluding) 2.17.0 Added CPE Configuration OR *cpe:2.3:a:redhat:enterprise_linux_fast_datapath:7.0:*:*:*:*:*:*:* *cpe:2.3:a:redhat:enterprise_linux_fast_datapath:8.0:*:*:*:*:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:21.10:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-3905 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-3905
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.65 }} 0.06%
score
0.79335
percentile