CVE-2020-1763

CVSS V2 Medium 5 CVSS V3 High 7.5
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.
Overview
  • CVE ID
  • CVE-2020-1763
  • Assigner
  • secalert@redhat.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2020-05-12T14:15:12
  • Last Modified Date
  • 2021-05-05T13:41:57
Weakness Enumerations
CWE URL
CWE-125 http://cwe.mitre.org/data/definitions/125.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:libreswan:libreswan:*:*:*:*:*:*:*:* 1 OR 3.27 3.31
cpe:2.3:a:libreswan:libreswan:3.5:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 5
  • Severity
  • MEDIUM
  • Exploitability Score
  • 10
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 7.5
  • Base Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
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
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2020-1763
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1763
History
Created Old Value New Value Data Type Notes
2022-05-10 16:16:59 Added to TrackCVE
2022-12-04 16:24:44 2020-05-12T14:15Z 2020-05-12T14:15:12 CVE Published Date updated
2022-12-04 16:24:44 2021-05-05T13:41:57 CVE Modified Date updated
2022-12-04 16:24:44 Analyzed Vulnerability Status updated