CVE detail
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 memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 11.0 · diversity 6.5 · KEV 0.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 0
- within the 30d window
- Peak daily
- 0
- highest bucket
Evidence
Source links by recency
2 source links · newest first
Mozilla this week announced that Firefox 94 is bringing Site Isolation to all users, along with patches for over a dozen vulnerabilities, including seven that feature a high severity rating.
newswww.securityweek.comNov 4, 2021, 3:41 PM- Update now! Mozilla fixes security vulnerabilities in Firefox 94Malwarebytes Labs
In a security advisory, Mozilla’s announced that several security issues in its Firefox browser have been fixed. Several of these vulnerabilities…
newswww.malwarebytes.comNov 2, 2021, 5:00 PM
Exploit code
Public exploit repository references
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0 repository references · best confidence N/A · max 0 stars
Related records
Similar CVEs
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A Linux user opening the print preview dialog could have caused the browser to crash. This vulnerability affects Firefox < 122, Firefox ESR < 115.7, and Thunderbird < 115.7.
- CVE-2023-6859CVSS 8.8 · High
A use-after-free condition affected TLS socket creation when under memory pressure. This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121.
- CVE-2023-6207CVSS 8.8 · High
Ownership mismanagement led to a use-after-free in ReadableByteStreams This vulnerability affects Firefox < 120, Firefox ESR < 115.5.0, and Thunderbird < 115.5.
- CVE-2023-6205CVSS 6.5 · Medium
It was possible to cause the use of a MessagePort after it had already been freed, which could potentially have led to an exploitable crash. This vulnerability affects Firefox < 1…
- CVE-2023-5728CVSS 7.5 · High
During garbage collection extra operations were performed on a object that should not be. This could have led to a potentially exploitable crash. This vulnerability affects Firefo…
- CVE-2023-5171CVSS 6.5 · Medium
During Ion compilation, a Garbage Collection could have resulted in a use-after-free condition, allowing an attacker to write two NUL bytes, and cause a potentially exploitable cr…