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CVE-2020-1763

Status Candidate

Overview

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.

Related Files

Gentoo Linux Security Advisory 202007-21
Posted Jul 27, 2020
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202007-21 - A vulnerability in Libreswan could lead to a Denial of Service condition. Versions less than 3.32 are affected.

tags | advisory, denial of service
systems | linux, gentoo
advisories | CVE-2020-1763
SHA-256 | 0599f8a5e1a5c0778a200f7d5906786f6cda5c8c161b29bcd21d3adefccad905
Debian Security Advisory 4684-1
Posted May 28, 2020
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4684-1 - Stephan Zeisberg discovered that the libreswan IPsec implementation could be forced into a crash/restart via a malformed IKEv1 Informational Exchange packet, resulting in denial of service.

tags | advisory, denial of service
systems | linux, debian
advisories | CVE-2020-1763
SHA-256 | 3da635b656c657a466ffd3f22799562a5f2cb79c8dab0db749a4d23f21d3f966
Red Hat Security Advisory 2020-2070-01
Posted May 12, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-2070-01 - Libreswan is an implementation of IPsec and IKE for Linux. IPsec is the Internet Protocol Security and uses strong cryptography to provide both authentication and encryption services. These services allow you to build secure tunnels through untrusted networks such as virtual private network. Issues addressed include a denial of service vulnerability.

tags | advisory, denial of service, protocol
systems | linux, redhat
advisories | CVE-2020-1763
SHA-256 | 70f21663e5e831298ce08e4ecc72164810a7e8380b819136d821e2833c2960fd
Red Hat Security Advisory 2020-2071-01
Posted May 12, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-2071-01 - Libreswan is an implementation of IPsec and IKE for Linux. IPsec is the Internet Protocol Security and uses strong cryptography to provide both authentication and encryption services. These services allow you to build secure tunnels through untrusted networks such as virtual private network. Issues addressed include a denial of service vulnerability.

tags | advisory, denial of service, protocol
systems | linux, redhat
advisories | CVE-2020-1763
SHA-256 | 8a031e6a20174bfab878d780d2dcd91a130378b07acf8c889ede98af694bb085
Red Hat Security Advisory 2020-2069-01
Posted May 12, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-2069-01 - Libreswan is an implementation of IPsec and IKE for Linux. IPsec is the Internet Protocol Security and uses strong cryptography to provide both authentication and encryption services. These services allow you to build secure tunnels through untrusted networks such as virtual private network. Issues addressed include a denial of service vulnerability.

tags | advisory, denial of service, protocol
systems | linux, redhat
advisories | CVE-2020-1763
SHA-256 | 8acb0e0342a66015a473d60f71fcea3c3dc9c896053f19c2c00f62e5f565130f
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