CVE-2021-29946 (GCVE-0-2021-29946)

Vulnerability from cvelistv5 – Published: 2021-06-24 13:19 – Updated: 2024-08-03 22:18
VLAI?
Summary
Ports that were written as an integer overflow above the bounds of a 16-bit integer could have bypassed port blocking restrictions when used in the Alt-Svc header. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.
Severity ?
No CVSS data available.
CWE
  • Port blocking could be bypassed
Assigner
References
Impacted products
Vendor Product Version
Mozilla Firefox ESR Affected: unspecified , < 78.10 (custom)
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    Mozilla Thunderbird Affected: unspecified , < 78.10 (custom)
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    Mozilla Firefox Affected: unspecified , < 88 (custom)
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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