CVE-2021-38504
When interacting with an HTML input element's file picker dialog with webkitdirectory set, a use-after-free could have resulted, leading to
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 94, 91.3
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
When interacting with an HTML input element's file picker dialog with webkitdirectory set, a use-after-free could have resulted, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.
Timeline
- CVE published
- Record last updated
Affected versions
- Mozilla Firefox
fixed in 94
- Mozilla Thunderbird
fixed in 91.3
- Mozilla Firefox ESR
fixed in 91.3