CVE-2021-38493
Mozilla: Memory safety bugs fixed in Firefox 92, Firefox ESR 78.14 and Firefox ESR 91.1
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
Mozilla developers reported memory safety bugs present in Firefox 91 and Firefox ESR 78.13. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 78.14, Thunderbird < 78.14, and Firefox < 92.
Los desarrolladores de Mozilla informaron de bugs de seguridad de memoria presentes en Firefox versión 91 y Firefox ESR versión 78.13. Algunos de estos bugs mostraban evidencias de corrupción de memoria y suponemos que con suficiente esfuerzo algunos de ellos podrían haber sido explotados para ejecutar código arbitrario. Esta vulnerabilidad afecta a Firefox ESR versiones anteriores a 78.14, Thunderbird versiones anteriores a 78.14 y Firefox versiones anteriores a 92
CVSS Scores
SSVC
- Decision:-
Timeline
- 2021-08-10 CVE Reserved
- 2021-09-13 CVE Published
- 2024-07-19 EPSS Updated
- 2024-08-04 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
- CWE-787: Out-of-bounds Write
CAPEC
References (8)
URL | Tag | Source |
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URL | Date | SRC |
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URL | Date | SRC |
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URL | Date | SRC |
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https://bugzilla.mozilla.org/buglist.cgi?bug_id=1723391%2C1724101%2C1724107 | 2022-12-09 | |
https://security.gentoo.org/glsa/202202-03 | 2022-12-09 | |
https://security.gentoo.org/glsa/202208-14 | 2022-12-09 | |
https://www.mozilla.org/security/advisories/mfsa2021-38 | 2022-12-09 | |
https://www.mozilla.org/security/advisories/mfsa2021-39 | 2022-12-09 | |
https://www.mozilla.org/security/advisories/mfsa2021-42 | 2022-12-09 | |
https://access.redhat.com/security/cve/CVE-2021-38493 | 2021-09-13 | |
https://bugzilla.redhat.com/show_bug.cgi?id=2002119 | 2021-09-13 |
Affected Vendors, Products, and Versions
Vendor | Product | Version | Other | Status | ||||||
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Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
Mozilla Search vendor "Mozilla" | Firefox Search vendor "Mozilla" for product "Firefox" | < 92.0 Search vendor "Mozilla" for product "Firefox" and version " < 92.0" | - |
Affected
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Mozilla Search vendor "Mozilla" | Firefox Esr Search vendor "Mozilla" for product "Firefox Esr" | < 78.14 Search vendor "Mozilla" for product "Firefox Esr" and version " < 78.14" | - |
Affected
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Mozilla Search vendor "Mozilla" | Thunderbird Search vendor "Mozilla" for product "Thunderbird" | < 78.14 Search vendor "Mozilla" for product "Thunderbird" and version " < 78.14" | - |
Affected
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