Attestkeep
Language: English
Sign up

Vulnerabilities / CVE-2023-29542

critical

CVE-2023-29542

Mozilla: Bypass of file download extension restrictions

Published Modified
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
Red Hat6.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

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

Description

A newline in a filename could have been used to bypass the file extension security mechanisms that replace malicious file extensions such as .lnk with .download. This could have led to accidental execution of malicious code. *This bug only affects Firefox and Thunderbird on Windows. Other versions of Firefox and Thunderbird are unaffected.* This vulnerability affects Firefox < 112, Firefox ESR < 102.10, and Thunderbird < 102.10.

Affected packages and fixed versions

SourcePackageFixed in
alpine 3.18firefox-esr102.10.0-r0
alpine 3.19firefox-esr102.10.0-r0
alpine 3.20firefox-esr102.10.0-r0
alpine 3.21firefox-esr102.10.0-r0
alpine 3.22firefox-esr102.10.0-r0
alpine 3.23firefox-esr102.10.0-r0

References

All 9 references

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.