CVE-2023-5172

A hashtable in the Ion Engine could have been mutated while ther ...

Published 27 Sep 2023Modified 17 Jun 2026CWE 416

In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Trivy's own label is CRITICAL. Rated critical by NVD. Rated lower by Ubuntu (medium).

Description

A hashtable in the Ion Engine could have been mutated while there was a live interior reference, leading to a potential use-after-free and exploitable crash. This vulnerability affects Firefox < 118.

Affected packages and fixed versions

Source	Package	Fixed in
chainguard	firefox-esr	118-r0
rapidfort ubuntu 20.04	thunderbird	1:140.7.1+build1-0ubuntu0.22.04.1
rapidfort ubuntu 22.04	thunderbird	1:140.7.1+build1-0ubuntu0.22.04.1
rapidfort ubuntu 24.04	thunderbird	1:140.7.1+build1-0ubuntu0.22.04.1
ubuntu 20.04	firefox	118.0.1+build1-0ubuntu0.20.04.1

References

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Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.