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NOTICE UPDATE

NIST has updated the NVD program announcement page with additional information regarding recent concerns and the temporary delays in enrichment efforts.

CVE-2020-1763 Detail

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.


Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score matches with CNA score
CNA:  Red Hat, Inc.
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


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: The NVD and the CNA have provided the same score. When this occurs only the CNA information is displayed, but the Acceptance Level icon for the CNA is given a checkmark to signify NVD concurrence.

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   Contributor acceptance level Red Hat, Inc.  

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Change History

7 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2020-1763
NVD Published Date:
05/12/2020
NVD Last Modified:
11/06/2023
Source:
Red Hat, Inc.