CVE-2021-23987
published 2021-03-31CVE-2021-23987: Mozilla developers and community members reported memory safety bugs present in Firefox 86 and Firefox ESR 78.8. Some of these bugs showed evidence of memory…
PriorityP343high8.8CVSS 3.1
AVNACLPRNUIRSUCHIHAH
EPSS
1.40%
69.2th percentile
Mozilla developers and community members reported memory safety bugs present in Firefox 86 and Firefox ESR 78.8. 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 < 78.9, Firefox < 87, and Thunderbird < 78.9.
Affected
19 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | firefox | < firefox 87.0-1 (sid) | firefox 87.0-1 (sid) |
| debian | firefox-esr | < firefox 87.0-1 (sid) | firefox 87.0-1 (sid) |
| debian | thunderbird | < firefox 87.0-1 (sid) | firefox 87.0-1 (sid) |
| mozilla | firefox | < 87.0 | 87.0 |
| mozilla | firefox | — | — |
| mozilla | firefox | >= 0 < 87.0+build3-0ubuntu0.16.04.2 | 87.0+build3-0ubuntu0.16.04.2 |
| mozilla | firefox | >= 0 < 87.0+build3-0ubuntu0.18.04.2 | 87.0+build3-0ubuntu0.18.04.2 |
| mozilla | firefox | >= 0 < 87.0+build3-0ubuntu0.20.04.2 | 87.0+build3-0ubuntu0.20.04.2 |
| mozilla | firefox | >= unspecified < 87 | 87 |
| mozilla | firefox_esr | < 78.9 | 78.9 |
| mozilla | firefox_esr | >= unspecified < 78.9 | 78.9 |
| mozilla | thunderbird | < 78.9 | 78.9 |
| mozilla | thunderbird | >= 0 < 1:78.9.0-1 | 1:78.9.0-1 |
| mozilla | thunderbird | >= 0 < 1:78.9.0-1 | 1:78.9.0-1 |
| mozilla | thunderbird | >= 0 < 1:78.9.0-1 | 1:78.9.0-1 |
| mozilla | thunderbird | >= 0 < 1:78.9.0-1 | 1:78.9.0-1 |
| mozilla | thunderbird | >= 0 < 1:78.11.0+build1-0ubuntu0.18.04.2 | 1:78.11.0+build1-0ubuntu0.18.04.2 |
| mozilla | thunderbird | >= 0 < 1:78.11.0+build1-0ubuntu0.20.04.2 | 1:78.11.0+build1-0ubuntu0.20.04.2 |
| mozilla | thunderbird | >= unspecified < 78.9 | 78.9 |
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_redhat8.8HIGH
vendor_ubuntu8.1HIGH
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Ubuntu
Thunderbird vulnerabilities
vendor_ubuntu·2021-06-25·CVSS 7.4
CVE-2021-29948 [HIGH] Thunderbird vulnerabilities
Title: Thunderbird vulnerabilities
Summary: Several security issues were fixed in Thunderbird.
USN-4995-1 fixed vulnerabilities in Thunderbird. This update provides
the corresponding updates for Ubuntu 18.04 LTS.
Original advisory details:
Multiple security issues were discovered in Thunderbird. If a user were
tricked into opening a specially crafted website in a browsing context, an
attacker could potentially exploit these to cause a denial of service,
obtain sensitive information, spoof the UI, bypass security restrictions,
or execute arbitrary code. (CVE-2021-23961, CVE-2021-23981,
CVE-2021-23982, CVE-2021-23987, CVE-2021-23994, CVE-2021-23998,
CVE-2021-23999, CVE-2021-29945, CVE-2021-29946, CVE-2021-29967)
It was discovered that extensions could open popup windows with control
of
Ubuntu
Thunderbird vulnerabilities
vendor_ubuntu·2021-06-22·CVSS 7.4
CVE-2021-23961 [HIGH] Thunderbird vulnerabilities
Title: Thunderbird vulnerabilities
Summary: Several security issues were fixed in Thunderbird.
Multiple security issues were discovered in Thunderbird. If a user were
tricked into opening a specially crafted website in a browsing context, an
attacker could potentially exploit these to cause a denial of service,
obtain sensitive information, spoof the UI, bypass security restrictions,
or execute arbitrary code. (CVE-2021-23961, CVE-2021-23981,
CVE-2021-23982, CVE-2021-23987, CVE-2021-23994, CVE-2021-23998,
CVE-2021-23999, CVE-2021-29945, CVE-2021-29946, CVE-2021-29967)
It was discovered that extensions could open popup windows with control
of the window title in some circumstances. If a user were tricked into
installing a specially crafted extension, an attacker could potentially
exploit
Ubuntu
Firefox vulnerabilities
vendor_ubuntu·2021-03-25·CVSS 8.1
CVE-2021-23987 [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, obtain sensitive
information, or execute arbitrary code. (CVE-2021-23981, CVE-2021-23982,
CVE-2021-23983, CVE-2021-23987, CVE-2021-23988)
It was discovered that extensions could open popup windows with control
of the window title in some circumstances. If a user were tricked into
installing a specially crafted extension, an attacker could potentially
exploit this to spook a website and trick the user into providing
credentials. (CVE-2021-23984)
It was discovered th
Red Hat
Mozilla: Memory safety bugs fixed in Firefox 87 and Firefox ESR 78.9
vendor_redhat·2021-03-23·CVSS 8.8
CVE-2021-23987 [HIGH] CWE-120 Mozilla: Memory safety bugs fixed in Firefox 87 and Firefox ESR 78.9
Mozilla: Memory safety bugs fixed in Firefox 87 and Firefox ESR 78.9
Mozilla developers and community members reported memory safety bugs present in Firefox 86 and Firefox ESR 78.8. 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 < 78.9, Firefox < 87, and Thunderbird < 78.9.
The Mozilla Foundation Security Advisory describes this issue as:
Mozilla developers and community members reported memory safety bugs present in Firefox 86 and Firefox ESR 78.8. 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.
Package: firefox (Red Hat Enterpris
Debian
CVE-2021-23987: firefox - Mozilla developers and community members reported memory safety bugs present in ...
vendor_debian·2021·CVSS 8.8
CVE-2021-23987 [HIGH] CVE-2021-23987: firefox - Mozilla developers and community members reported memory safety bugs present in ...
Mozilla developers and community members reported memory safety bugs present in Firefox 86 and Firefox ESR 78.8. 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 < 78.9, Firefox < 87, and Thunderbird < 78.9.
Scope: local
sid: resolved (fixed in 87.0-1)
Mozilla
Mozilla Foundation Security Advisory 2021-11: CVE-2021-23987
vendor_mozilla·CVSS 8.8
CVE-2021-23987 [HIGH] Mozilla Foundation Security Advisory 2021-11: CVE-2021-23987
Mozilla Foundation Security Advisory 2021-11
CVE: CVE-2021-23987
Product: Firefox ESR
Impact: high
Fixed in: Firefox ESR 78.9
Mozilla
Mozilla Foundation Security Advisory 2021-12: CVE-2021-23987
vendor_mozilla·CVSS 8.8
CVE-2021-23987 [HIGH] Mozilla Foundation Security Advisory 2021-12: CVE-2021-23987
Mozilla Foundation Security Advisory 2021-12
CVE: CVE-2021-23987
Product: Thunderbird
Impact: high
Fixed in: Thunderbird 78.9
Mozilla
Mozilla Foundation Security Advisory 2021-10: CVE-2021-23987
vendor_mozilla·CVSS 8.8
CVE-2021-23987 [HIGH] Mozilla Foundation Security Advisory 2021-10: CVE-2021-23987
Mozilla Foundation Security Advisory 2021-10
CVE: CVE-2021-23987
Product: Firefox
Impact: moderate
Fixed in: Firefox 87
GHSA
GHSA-5597-54m5-f56x: Mozilla developers and community members reported memory safety bugs present in Firefox 86 and Firefox ESR 78
ghsa_unreviewed·2022-05-24
CVE-2021-23987 [HIGH] CWE-119 GHSA-5597-54m5-f56x: Mozilla developers and community members reported memory safety bugs present in Firefox 86 and Firefox ESR 78
Mozilla developers and community members reported memory safety bugs present in Firefox 86 and Firefox ESR 78.8. 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 < 78.9, Thunderbird < 78.9, and Firefox < 87.
OSV
thunderbird vulnerabilities
osv·2021-06-25·CVSS 7.4
[HIGH] thunderbird vulnerabilities
thunderbird vulnerabilities
USN-4995-1 fixed vulnerabilities in Thunderbird. This update provides
the corresponding updates for Ubuntu 18.04 LTS.
Original advisory details:
Multiple security issues were discovered in Thunderbird. If a user were
tricked into opening a specially crafted website in a browsing context, an
attacker could potentially exploit these to cause a denial of service,
obtain sensitive information, spoof the UI, bypass security restrictions,
or execute arbitrary code. (CVE-2021-23961, CVE-2021-23981,
CVE-2021-23982, CVE-2021-23987, CVE-2021-23994, CVE-2021-23998,
CVE-2021-23999, CVE-2021-29945, CVE-2021-29946, CVE-2021-29967)
It was discovered that extensions could open popup windows with control
of the window title in some circumstances. If a user were tricked into
OSV
thunderbird vulnerabilities
osv·2021-06-22·CVSS 7.4
CVE-2021-23961 [HIGH] thunderbird vulnerabilities
thunderbird vulnerabilities
Multiple security issues were discovered in Thunderbird. If a user were
tricked into opening a specially crafted website in a browsing context, an
attacker could potentially exploit these to cause a denial of service,
obtain sensitive information, spoof the UI, bypass security restrictions,
or execute arbitrary code. (CVE-2021-23961, CVE-2021-23981,
CVE-2021-23982, CVE-2021-23987, CVE-2021-23994, CVE-2021-23998,
CVE-2021-23999, CVE-2021-29945, CVE-2021-29946, CVE-2021-29967)
It was discovered that extensions could open popup windows with control
of the window title in some circumstances. If a user were tricked into
installing a specially crafted extension, an attacker could potentially
exploit this to spoof a website and trick the user into providing
credentia
OSV
CVE-2021-23987: Mozilla developers and community members reported memory safety bugs present in Firefox 86 and Firefox ESR 78
osv·2021-03-31·CVSS 8.8
CVE-2021-23987 [HIGH] CVE-2021-23987: Mozilla developers and community members reported memory safety bugs present in Firefox 86 and Firefox ESR 78
Mozilla developers and community members reported memory safety bugs present in Firefox 86 and Firefox ESR 78.8. 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 < 78.9, Firefox < 87, and Thunderbird < 78.9.
OSV
firefox vulnerabilities
osv·2021-03-25·CVSS 8.1
CVE-2021-23981 [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, obtain sensitive
information, or execute arbitrary code. (CVE-2021-23981, CVE-2021-23982,
CVE-2021-23983, CVE-2021-23987, CVE-2021-23988)
It was discovered that extensions could open popup windows with control
of the window title in some circumstances. If a user were tricked into
installing a specially crafted extension, an attacker could potentially
exploit this to spook a website and trick the user into providing
credentials. (CVE-2021-23984)
It was discovered that the DevTools remote debugging feature could be
enabled without an indication to the user. If a local attacker
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1513519%2C1683439%2C1690169%2C1690718https://www.mozilla.org/security/advisories/mfsa2021-10/https://www.mozilla.org/security/advisories/mfsa2021-11/https://www.mozilla.org/security/advisories/mfsa2021-12/https://bugzilla.mozilla.org/buglist.cgi?bug_id=1513519%2C1683439%2C1690169%2C1690718https://www.mozilla.org/security/advisories/mfsa2021-10/https://www.mozilla.org/security/advisories/mfsa2021-11/https://www.mozilla.org/security/advisories/mfsa2021-12/
2021-03-31
Published