National Vulnerability Database

National Vulnerability Database

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CVE-2020-1763 Detail

Current Description

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.


View Analysis Description

Severity

 


CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  7.5 HIGH
Vector:  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Nist CVSS score does not match with CNA score
CNA:  Red Hat, Inc.
Base Score:  7.5 HIGH
Vector:  CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: It is possible that the NVD CVSS may not match that of the CNA. The most common reason for this is that publicly available information does not provide sufficient detail or that information simply was not available at the time the CVSS vector string was assigned.

References to Advisories, Solutions, and Tools

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

Weakness Enumeration

CWE-ID CWE Name Source
CWE-125 Out-of-bounds Read cwe source acceptance level NIST   Provider acceptance level Red Hat, Inc.  

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Change History

6 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2020-1763
NVD Published Date:
05/12/2020
NVD Last Modified:
05/05/2021
Source:
Red Hat, Inc.