7.5
CWE
20
Advisory Published
Updated

CVE-2021-3910: NUL character in ROA causes OctoRPKI to crash

First published: Thu Nov 11 2021(Updated: )

OctoRPKI crashes when encountering a repository that returns an invalid ROA (just an encoded NUL (\0) character).

Credit: cna@cloudflare.com

Affected SoftwareAffected VersionHow to fix
debian/cfrpki
1.4.2-1~deb11u1
1.4.4-1
1.5.10-2
Cloudflare Octorpki<1.3.0
Debian Debian Linux=11.0

Remedy

Upgrade to 1.4

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Frequently Asked Questions

  • What is CVE-2021-3910?

    CVE-2021-3910 is a vulnerability that affects OctoRPKI and Debian Linux, allowing a specially crafted repository to cause a crash by returning an invalid ROA.

  • What is the severity of CVE-2021-3910?

    CVE-2021-3910 has a severity of 7.5 (high).

  • Which software is affected by CVE-2021-3910?

    OctoRPKI versions 1.3.0 and earlier, as well as Debian Linux 11.0, are affected by CVE-2021-3910.

  • How can I fix CVE-2021-3910?

    To fix CVE-2021-3910, update OctoRPKI to version 1.4.2-1~deb11u1, 1.4.4-1, or 1.5.10-2, or update Debian Linux to the latest version.

  • Where can I find more information about CVE-2021-3910?

    For more information about CVE-2021-3910, you can refer to the following sources: [GitHub Advisory](https://github.com/cloudflare/cfrpki/security/advisories/GHSA-5mxh-2qfv-4g7j), [Debian Security Tracker](https://security-tracker.debian.org/tracker/CVE-2021-3910), [Debian Security Advisory](https://www.debian.org/security/2022/dsa-5041)

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