CVE-2021-38494
published 2021-11-03CVE-2021-38494: Mozilla developers reported memory safety bugs present in Firefox 91. Some of these bugs showed evidence of memory corruption and we presume that with enough…
PriorityP338high8.8CVSS 3.1
AVNACLPRNUIRSUCHIHAH
EPSS
0.78%
51.4th percentile
Mozilla developers reported memory safety bugs present in Firefox 91. 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 < 92.
Affected
6 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | firefox | < firefox 92.0-1 (sid) | firefox 92.0-1 (sid) |
| mozilla | firefox | < 92.0 | 92.0 |
| mozilla | firefox | — | — |
| mozilla | firefox | >= 0 < 92.0+build3-0ubuntu0.18.04.1 | 92.0+build3-0ubuntu0.18.04.1 |
| mozilla | firefox | >= 0 < 92.0+build3-0ubuntu0.20.04.1 | 92.0+build3-0ubuntu0.20.04.1 |
| mozilla | firefox | >= unspecified < 92 | 92 |
CVSS provenance
nvdv3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
nvdv2.06.8MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P
osv8.8HIGH
vendor_debian8.8HIGH
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Ubuntu
Firefox vulnerabilities
vendor_ubuntu·2021-09-09
CVE-2021-38493 Firefox vulnerabilities
Title: Firefox vulnerabilities
Summary: Firefox could be made to crash or run programs as your login if it
opened a malicious website.
Multiple security issues were discovered in Firefox. If a user were
tricked into opening a specially crafted website, an attacker could
potentially exploit these to cause a denial of service, bypass mixed
content blocking, or execute arbitrary code.
Instructions: After a standard system update you need to restart Firefox to make
all the necessary changes.
Debian
CVE-2021-38494: firefox - Mozilla developers reported memory safety bugs present in Firefox 91. Some of th...
vendor_debian·2021·CVSS 8.8
CVE-2021-38494 [HIGH] CVE-2021-38494: firefox - Mozilla developers reported memory safety bugs present in Firefox 91. Some of th...
Mozilla developers reported memory safety bugs present in Firefox 91. 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 < 92.
Scope: local
sid: resolved (fixed in 92.0-1)
Mozilla
Mozilla Foundation Security Advisory 2021-38: CVE-2021-38494
vendor_mozilla·CVSS 8.8
CVE-2021-38494 [HIGH] Mozilla Foundation Security Advisory 2021-38: CVE-2021-38494
Mozilla Foundation Security Advisory 2021-38
CVE: CVE-2021-38494
Product: Firefox
Impact: high
Fixed in: Firefox 92
GHSA
GHSA-64fr-v334-fr7x: Mozilla developers reported memory safety bugs present in Firefox 91
ghsa_unreviewed·2022-05-24
CVE-2021-38494 [HIGH] CWE-787 GHSA-64fr-v334-fr7x: Mozilla developers reported memory safety bugs present in Firefox 91
Mozilla developers reported memory safety bugs present in Firefox 91. 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 < 92.
OSV
CVE-2021-38494: Mozilla developers reported memory safety bugs present in Firefox 91
osv·2021-09-09·CVSS 8.8
CVE-2021-38494 [HIGH] CVE-2021-38494: Mozilla developers reported memory safety bugs present in Firefox 91
Mozilla developers reported memory safety bugs present in Firefox 91. 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 < 92.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2021-11-03
Published