CVE-2023-5174: Use After Free
First published: Tue Sep 26 2023(Updated: )
If Windows failed to duplicate a handle during process creation, the sandbox code may have inadvertently freed a pointer twice, resulting in a use-after-free and a potentially exploitable crash. *This bug only affects Firefox on Windows when run in non-standard configurations (such as using `runas`). Other operating systems are unaffected.* This vulnerability affects Firefox < 118, Firefox ESR < 115.3, and Thunderbird < 115.3.
Credit: security@mozilla.org security@mozilla.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| <118 | 118 | |
| <115.3 | 115.3 | |
| <115.3 | 115.3 | |
| Mozilla Firefox | <118 | |
| Mozilla Firefox ESR | <115.3 | |
| Mozilla Thunderbird | <115.3 | |
| Microsoft Windows |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- https://bugzilla.mozilla.org/show_bug.cgi?id=1848454
- https://www.mozilla.org/en-US/security/advisories/mfsa2023-41/
- https://www.mozilla.org/en-US/security/advisories/mfsa2023-42/
- https://www.mozilla.org/en-US/security/advisories/mfsa2023-43/
- https://www.mozilla.org/security/advisories/mfsa2023-41/
- https://www.mozilla.org/security/advisories/mfsa2023-42/
- https://www.mozilla.org/security/advisories/mfsa2023-43/
Peer vulnerabilities
(Found alongside the following vulnerabilities)
Frequently Asked Questions
What is the vulnerability ID?
The vulnerability ID is CVE-2023-5174.
What is the severity of CVE-2023-5174?
The severity of CVE-2023-5174 is medium.
Which software is affected by CVE-2023-5174?
Mozilla Firefox ESR 115.3, Mozilla Firefox up to version 118, and Mozilla Thunderbird 115.3 are affected by CVE-2023-5174.
How can CVE-2023-5174 be exploited?
CVE-2023-5174 can be exploited through a use-after-free vulnerability caused by a failure to duplicate a handle during process creation.
Is there a fix available for CVE-2023-5174?
Yes, a fix for CVE-2023-5174 is available. It is recommended to update to Mozilla Firefox ESR 115.3, Mozilla Firefox version 118, or Mozilla Thunderbird 115.3.
- agent/author
- agent/type
- agent/last-modified-date
- agent/first-publish-date
- agent/softwarecombine
- collector/mozilla-advisory
- source/Mozilla
- agent/software-canonical-lookup
- agent/event
- agent/severity
- agent/description
- agent/references
- agent/software-canonical-lookup-request
- collector/nvd-api
- agent/weakness
- agent/tags
- collector/nvd-index
- collector/mitre-cve
- source/MITRE
- vendor/mozilla
- canonical/mozilla thunderbird
- canonical/mozilla firefox esr
- canonical/mozilla firefox
- vendor/microsoft
- canonical/microsoft windows