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- ------------------------------------------------------------------------- Debian Security Advisory DSA-5249-1 security@debian.org https://www.debian.org/security/ Yves-Alexis Perez October 06, 2022 https://www.debian.org/security/faq
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Package : strongswan
CVE ID : CVE-2022-40617
Debian Bug : 1021271

Lahav Schlesinger discovered a vulnerability in the revocation plugin of strongSwan, an IKE/IPsec suite.

The revocation plugin uses OCSP URIs and CRL distribution points (CDP) which come from certificates provided by the remote endpoint. The plugin didn't check for the certificate chain of trust before using those URIs, so an attacker could provided a crafted certificate containing URIs pointing to servers under their control, potentially leading to denial-of-service attacks.

For the stable distribution (bullseye), this problem has been fixed in
version 5.9.1-1+deb11u3.

We recommend that you upgrade your strongswan packages.

For the detailed security status of strongswan please refer to
its security tracker page at: https://security-tracker.debian.org/tracker/strongswan

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org
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