Memory leak in openvswitch (Alpine package)



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-27827
CWE-ID CWE-401
Exploitation vector Network
Public exploit N/A
Vulnerable software
 openvswitch (Alpine package)
Operating systems & Components / Operating system package or component

Vendor Alpine Linux Development Team

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Memory leak

EUVDB-ID: #VU49910

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-27827

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform DoS attack on the target system.

The vulnerability exists due memory leak in lldpd when processing packets with multiple instances of certain TLVs. A remote attacker can send specially crafted traffic to the system and perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

openvswitch (Alpine package): 2.9.2-r0 - 2.12.0-r3

CPE2.3 External links

https://git.alpinelinux.org/aports/commit/?id=7493d456efa66a817925f843779241ec2e2dce14
https://git.alpinelinux.org/aports/commit/?id=e6f9e62bf0fb7d83f051223a3ac38cf3275064e7


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.



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