Input validation error in libreswan (Alpine package)



Published: 2020-05-21
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE ID CVE-2020-1763
CWE ID CWE-20
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe
libreswan (Alpine package)
Operating systems & Components / Operating system package or component

Vendor Alpine Linux Development Team

Security Advisory

This security advisory describes one medium risk vulnerability.

1) Input validation error

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] [PCI]

CVE-ID: CVE-2020-1763

CWE-ID: CWE-20 - Improper Input Validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input when processing IKEv1 informational exchange messages. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

libreswan (Alpine package): 3.29-r0, 3.29-r1

CPE External links

https://git.alpinelinux.org/aports/commit/?id=f269dac773a209ee9a482acbcf997ffd3e83e024

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.



###SIDEBAR###