CVE-2021-29947
published 2021-06-24CVE-2021-29947: Mozilla developers and community members reported memory safety bugs present in Firefox 87. Some of these bugs showed evidence of memory corruption and we…
PriorityP337high8.8CVSS 3.1
AVNACLPRNUIRSUCHIHAH
EPSS
0.87%
54.3th percentile
Mozilla developers and community members reported memory safety bugs present in Firefox 87. 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 < 88.
Affected
7 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | firefox | < firefox 88.0-1 (sid) | firefox 88.0-1 (sid) |
| mozilla | firefox | < 88.0 | 88.0 |
| mozilla | firefox | — | — |
| mozilla | firefox | >= 0 < 88.0+build2-0ubuntu0.16.04.1 | 88.0+build2-0ubuntu0.16.04.1 |
| mozilla | firefox | >= 0 < 88.0+build2-0ubuntu0.18.04.2 | 88.0+build2-0ubuntu0.18.04.2 |
| mozilla | firefox | >= 0 < 88.0+build2-0ubuntu0.20.04.1 | 88.0+build2-0ubuntu0.20.04.1 |
| mozilla | firefox | >= unspecified < 88 | 88 |
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
vendor_ubuntu8.8HIGH
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Ubuntu
Firefox vulnerabilities
vendor_ubuntu·2021-04-26·CVSS 8.8
CVE-2021-24000 [HIGH] 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, spoof the
browser UI, bypass security restrictions, trick the user into disclosing
confidential information, or execute arbitrary code. (CVE-2021-23994,
CVE-2021-23996, CVE-2021-23997, CVE-2021-23998, CVE-2021-23999,
CVE-2021-24000, CVE-2021-24001, CVE-2021-29945, CVE-2021-29946,
CVE-2021-29947)
A use-after-free was discovered when Responsive Design Mode was
enabled. If a user were tricked into opening a specially crafted
website with Responsive Design Mode enabled,
Debian
CVE-2021-29947: firefox - Mozilla developers and community members reported memory safety bugs present in ...
vendor_debian·2021·CVSS 8.8
CVE-2021-29947 [HIGH] CVE-2021-29947: firefox - Mozilla developers and community members reported memory safety bugs present in ...
Mozilla developers and community members reported memory safety bugs present in Firefox 87. 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 < 88.
Scope: local
sid: resolved (fixed in 88.0-1)
Mozilla
Mozilla Foundation Security Advisory 2021-16: CVE-2021-29947
vendor_mozilla·CVSS 8.8
CVE-2021-29947 [HIGH] Mozilla Foundation Security Advisory 2021-16: CVE-2021-29947
Mozilla Foundation Security Advisory 2021-16
CVE: CVE-2021-29947
Product: Firefox
Impact: high
Fixed in: Firefox 88
GHSA
GHSA-m9m4-w6qg-qgcp: Mozilla developers and community members reported memory safety bugs present in Firefox 87
ghsa_unreviewed·2022-05-24
CVE-2021-29947 [HIGH] CWE-119 GHSA-m9m4-w6qg-qgcp: Mozilla developers and community members reported memory safety bugs present in Firefox 87
Mozilla developers and community members reported memory safety bugs present in Firefox 87. 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 < 88.
OSV
firefox vulnerabilities
osv·2021-04-26·CVSS 8.8
CVE-2021-23994 [HIGH] firefox vulnerabilities
firefox vulnerabilities
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, spoof the
browser UI, bypass security restrictions, trick the user into disclosing
confidential information, or execute arbitrary code. (CVE-2021-23994,
CVE-2021-23996, CVE-2021-23997, CVE-2021-23998, CVE-2021-23999,
CVE-2021-24000, CVE-2021-24001, CVE-2021-29945, CVE-2021-29946,
CVE-2021-29947)
A use-after-free was discovered when Responsive Design Mode was
enabled. If a user were tricked into opening a specially crafted
website with Responsive Design Mode enabled, an attacker could
potentially exploit this to cause a denial of service, or execute
arbitrary code. (CVE-2021-2
OSV
CVE-2021-29947: Mozilla developers and community members reported memory safety bugs present in Firefox 87
osv·2021-04-26·CVSS 8.8
CVE-2021-29947 [HIGH] CVE-2021-29947: Mozilla developers and community members reported memory safety bugs present in Firefox 87
Mozilla developers and community members reported memory safety bugs present in Firefox 87. 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 < 88.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1651449%2C1674142%2C1693476%2C1696886%2C1700091https://www.mozilla.org/security/advisories/mfsa2021-16/https://bugzilla.mozilla.org/buglist.cgi?bug_id=1651449%2C1674142%2C1693476%2C1696886%2C1700091https://www.mozilla.org/security/advisories/mfsa2021-16/
2021-06-24
Published