CVEvulnerability
CVE-2020-1763
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2020-05-12
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P
- Weaknesses
- CWE-125
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.
Affected configurations
• libreswan libreswan (>= 3.27 <= 3.31)
• libreswan libreswan 3.5
Related
Weakness · CWE (1)
- CWE-125 Out-of-bounds Read weakness
References
- 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
- 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