Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2021-3905 |
CWE-ID | CWE-401 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
Open vSwitch Hardware solutions / Firmware |
Vendor | openvswitch.org |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
EUVDB-ID: #VU73248
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-3905
CWE-ID:
CWE-401 - Missing release of memory after effective lifetime
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform DoS attack on the target system.
The vulnerability exists due memory leak in lib/ipf.c during userspace IP fragmentation processing. A remote attacker can send specially crafted packet fragments to the system to trigger memory leak and perform denial of service attack.
MitigationInstall updates from vendor's website.
Vulnerable software versionsOpen vSwitch: 2.12.0 - 2.16.0
External linkshttp://bugzilla.redhat.com/show_bug.cgi?id=2019692
http://ubuntu.com/security/CVE-2021-3905
http://access.redhat.com/security/cve/CVE-2021-3905
http://github.com/openvswitch/ovs-issues/issues/226
http://github.com/openvswitch/ovs/commit/803ed12e31b0377c37d7aa8c94b3b92f2081e349
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.