Vulnerability Details : CVE-2022-22740
Certain network request objects were freed too early when releasing a network request handle. This could have lead to a use-after-free causing a potentially exploitable crash. This vulnerability affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5.
Vulnerability category: Memory Corruption
Products affected by CVE-2022-22740
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2022-22740
0.25%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 66 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2022-22740
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
8.8
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST |
CWE ids for CVE-2022-22740
-
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2022-22740
-
https://bugzilla.mozilla.org/show_bug.cgi?id=1742334
1742334 - (CVE-2022-22740) Use-after-free of ChannelEventQueue::mOwnerExploit;Issue Tracking;Vendor Advisory
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https://www.mozilla.org/security/advisories/mfsa2022-01/
Security Vulnerabilities fixed in Firefox 96 — MozillaVendor Advisory
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https://www.mozilla.org/security/advisories/mfsa2022-02/
Security Vulnerabilities fixed in Firefox ESR 91.5 — MozillaVendor Advisory
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https://www.mozilla.org/security/advisories/mfsa2022-03/
Security Vulnerabilities fixed in Thunderbird 91.5 — MozillaVendor Advisory
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