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CVE-2023-41913

Status Candidate

Overview

strongSwan before 5.9.12 has a buffer overflow and possible unauthenticated remote code execution via a DH public value that exceeds the internal buffer in charon-tkm's DH proxy. The earliest affected version is 5.3.0. An attack can occur via a crafted IKE_SA_INIT message.

Related Files

Ubuntu Security Notice USN-6488-2
Posted Dec 15, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6488-2 - USN-6488-1 fixed a vulnerability in strongSwan. This update provides the corresponding updates for Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. Florian Picca discovered that strongSwan incorrectly handled certain DH public values. A remote attacker could use this issue to cause strongSwan to crash, resulting in a denial of service, or possibly execute arbitrary code.

tags | advisory, remote, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2023-41913
SHA-256 | 338f4a5b2aa85b89f8b08d5684422107226ac51c46249766ac922c0b469c720e
Debian Security Advisory 5560-1
Posted Nov 21, 2023
Authored by Debian | Site debian.org

Debian Linux Security Advisory 5560-1 - Florian Picca reported a bug the charon-tkm daemon in strongSwan an IKE/IPsec suite.

tags | advisory
systems | linux, debian
advisories | CVE-2023-41913
SHA-256 | 5a1f2db0cf804134a1732977a4abea781e62ddaade859b0bb3eda79fe9c3e42d
Ubuntu Security Notice USN-6488-1
Posted Nov 21, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6488-1 - Florian Picca discovered that strongSwan incorrectly handled certain DH public values. A remote attacker could use this issue to cause strongSwan to crash, resulting in a denial of service, or possibly execute arbitrary code.

tags | advisory, remote, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2023-41913
SHA-256 | 7ffb104625b55bdf8d0c050ca960b947b669a817f6f1d3a5c481c108244fc04d
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