CVE Vulnerability

CVE-2020-1763

An out-of-bounds buffer read flaw was found in the pluto daemon of libreswan from versions 3.27 till 3.31 where, an unauthenticated attacker could use this flaw to crash libreswan by sending specially-crafted IKEv1 Informational Exchange packets. The daemon respawns after the crash.

5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

7.5 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1763 Issue Tracking Third Party Advisory
https://github.com/libreswan/libreswan/commit/471a3e41a449d7c753bc4edbba4239501bb62ba8 Patch Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1813329 Issue Tracking Third Party Advisory
https://libreswan.org/security/CVE-2020-1763/CVE-2020-1763.txt Patch Vendor Advisory
https://www.debian.org/security/2020/dsa-4684 Third Party Advisory
https://security.gentoo.org/glsa/202007-21 Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-379803.pdf Third Party Advisory
https://us-cert.cisa.gov/ics/advisories/icsa-21-040-04 Third Party Advisory US Government Resource
Configurations

Configuration 1

cpe:2.3:a:libreswan:libreswan:3.5:*:*:*:*:*:*:*
cpe:2.3:a:libreswan:libreswan:*:*:*:*:*:*:*:*
Information

Published : 2020-05-12 02:15

Updated : 2021-05-05 01:41

NVD link : CVE-2020-1763

Mitre link : CVE-2020-1763

Products Affected
No products.
CWE
CWE-125

Out-of-bounds Read