CVE-2021-3905
Severity Score
7.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
1
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
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.
Se ha encontrado una pérdida de memoria en Open vSwitch (OVS) durante el procesamiento de la fragmentación IP en el espacio de usuario. Un atacante podría usar este fallo para agotar potencialmente la memoria disponible al seguir enviando fragmentos de paquetes.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2021-10-26 CVE Reserved
- 2022-01-20 CVE Published
- 2024-08-03 CVE Updated
- 2024-08-03 First Exploit
- 2024-11-14 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-401: Missing Release of Memory after Effective Lifetime
CAPEC
References (6)
| URL | Tag | Source |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2021-3905 | Third Party Advisory |
| URL | Date | SRC |
|---|---|---|
| https://github.com/openvswitch/ovs-issues/issues/226 | 2024-08-03 |
| URL | Date | SRC |
|---|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=2019692 | 2023-11-26 | |
| https://github.com/openvswitch/ovs/commit/803ed12e31b0377c37d7aa8c94b3b92f2081e349 | 2023-11-26 | |
| https://ubuntu.com/security/CVE-2021-3905 | 2023-11-26 |
| URL | Date | SRC |
|---|---|---|
| https://security.gentoo.org/glsa/202311-16 | 2023-11-26 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Openvswitch Search vendor "Openvswitch" | Openvswitch Search vendor "Openvswitch" for product "Openvswitch" | < 2.17.0 Search vendor "Openvswitch" for product "Openvswitch" and version " < 2.17.0" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Enterprise Linux Fast Datapath Search vendor "Redhat" for product "Enterprise Linux Fast Datapath" | 7.0 Search vendor "Redhat" for product "Enterprise Linux Fast Datapath" and version "7.0" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Enterprise Linux Fast Datapath Search vendor "Redhat" for product "Enterprise Linux Fast Datapath" | 8.0 Search vendor "Redhat" for product "Enterprise Linux Fast Datapath" and version "8.0" | - |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 21.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "21.10" | - |
Affected
| ||||||
| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 35 Search vendor "Fedoraproject" for product "Fedora" and version "35" | - |
Affected
| ||||||