CVE-2021-29955

medium

Description

A transient execution vulnerability, named Floating Point Value Injection (FPVI) allowed an attacker to leak arbitrary memory addresses and may have also enabled JIT type confusion attacks. (A related vulnerability, Speculative Code Store Bypass (SCSB), did not affect Firefox.). This vulnerability affects Firefox ESR < 78.9 and Firefox < 87.

References

https://www.mozilla.org/security/advisories/mfsa2021-11/

https://www.mozilla.org/security/advisories/mfsa2021-10/

https://bugzilla.mozilla.org/show_bug.cgi?id=1692972

Details

Source: Mitre, NVD

Published: 2021-06-24

Updated: 2021-06-30

Risk Information

CVSS v2

Base Score: 2.6

Vector: CVSS2#AV:N/AC:H/Au:N/C:P/I:N/A:N

Severity: Low

CVSS v3

Base Score: 5.3

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N

Severity: Medium