CVE-2021-29981
published 2021-08-17CVE-2021-29981: An issue present in lowering/register allocation could have led to obscure but deterministic register confusion failures in JITted code that would lead to a…
PriorityP340high8.8CVSS 3.1
AVNACLPRNUIRSUCHIHAH
EPSS
1.00%
58.7th percentile
An issue present in lowering/register allocation could have led to obscure but deterministic register confusion failures in JITted code that would lead to a potentially exploitable crash. This vulnerability affects Firefox < 91 and Thunderbird < 91.
Affected
11 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | firefox | < firefox 91.0-1 (sid) | firefox 91.0-1 (sid) |
| debian | thunderbird | < firefox 91.0-1 (sid) | firefox 91.0-1 (sid) |
| mozilla | firefox | < 91.0 | 91.0 |
| mozilla | firefox | — | — |
| mozilla | firefox | >= 0 < 91.0+build2-0ubuntu0.18.04.1 | 91.0+build2-0ubuntu0.18.04.1 |
| mozilla | firefox | >= 0 < 91.0+build2-0ubuntu0.20.04.1 | 91.0+build2-0ubuntu0.20.04.1 |
| mozilla | firefox | >= unspecified < 91 | 91 |
| mozilla | thunderbird | < 91.0 | 91.0 |
| mozilla | thunderbird | >= 0 < 1:91.5.0+build1-0ubuntu0.18.04.1 | 1:91.5.0+build1-0ubuntu0.18.04.1 |
| mozilla | thunderbird | >= 0 < 1:91.5.0+build1-0ubuntu0.20.04.1 | 1:91.5.0+build1-0ubuntu0.20.04.1 |
| mozilla | thunderbird | >= unspecified < 91 | 91 |
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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GHSA
GHSA-fxr9-2j9j-f89c: An issue present in lowering/register allocation could have led to obscure but deterministic register confusion failures in JITted code that would lea
ghsa_unreviewed·2022-05-24
CVE-2021-29981 [HIGH] GHSA-fxr9-2j9j-f89c: An issue present in lowering/register allocation could have led to obscure but deterministic register confusion failures in JITted code that would lea
An issue present in lowering/register allocation could have led to obscure but deterministic register confusion failures in JITted code that would lead to a potentially exploitable crash. This vulnerability affects Firefox < 91 and Thunderbird < 91.
OSV
thunderbird vulnerabilities
osv·2022-01-21·CVSS 8.8
CVE-2021-4129 [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, trick a user into accepting unwanted
permissions, conduct header splitting attacks, conduct spoofing attacks,
bypass security restrictions, confuse the user, or execute arbitrary code.
(CVE-2021-4129, CVE-2021-4140, CVE-2021-29981, CVE-2021-29982,
CVE-2021-29987, CVE-2021-29991, CVE-2021-38495, CVE-2021-38496,
CVE-2021-38497, CVE-2021-38498, CVE-2021-38500, CVE-2021-38501,
CVE-2021-38503, CVE-2021-38504, CVE-2021-38506, CVE-2021-38507,
CVE-2021-38508, CVE-2021-38509, CVE-2021-43534, CVE-2021-43535,
CVE-2021-43536, CVE
OSV
CVE-2021-29981: An issue present in lowering/register allocation could have led to obscure but deterministic register confusion failures in JITted code that would lea
osv·2021-08-11·CVSS 8.8
CVE-2021-29981 [HIGH] CVE-2021-29981: An issue present in lowering/register allocation could have led to obscure but deterministic register confusion failures in JITted code that would lea
An issue present in lowering/register allocation could have led to obscure but deterministic register confusion failures in JITted code that would lead to a potentially exploitable crash. This vulnerability affects Firefox < 91 and Thunderbird < 91.
Ubuntu
Thunderbird vulnerabilities
vendor_ubuntu·2022-01-21·CVSS 8.8
CVE-2022-22742 [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, trick a user into accepting unwanted
permissions, conduct header splitting attacks, conduct spoofing attacks,
bypass security restrictions, confuse the user, or execute arbitrary code.
(CVE-2021-4129, CVE-2021-4140, CVE-2021-29981, CVE-2021-29982,
CVE-2021-29987, CVE-2021-29991, CVE-2021-38495, CVE-2021-38496,
CVE-2021-38497, CVE-2021-38498, CVE-2021-38500, CVE-2021-38501,
CVE-2021-38503, CVE-2021-38504, CVE-2021-38506, CVE-2021-38507,
CVE-2021-38508,
Ubuntu
Firefox vulnerabilities
vendor_ubuntu·2021-08-11
CVE-2021-29984 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, trick a user into accepting unwanted permissions, or execute
arbitrary code.
Instructions: After a standard system update you need to restart Firefox to make
all the necessary changes.
Debian
CVE-2021-29981: firefox - An issue present in lowering/register allocation could have led to obscure but d...
vendor_debian·2021·CVSS 8.8
CVE-2021-29981 [HIGH] CVE-2021-29981: firefox - An issue present in lowering/register allocation could have led to obscure but d...
An issue present in lowering/register allocation could have led to obscure but deterministic register confusion failures in JITted code that would lead to a potentially exploitable crash. This vulnerability affects Firefox < 91 and Thunderbird < 91.
Scope: local
sid: resolved (fixed in 91.0-1)
Mozilla
Mozilla Foundation Security Advisory 2021-33: CVE-2021-29981
vendor_mozilla·CVSS 8.8
CVE-2021-29981 [HIGH] Mozilla Foundation Security Advisory 2021-33: CVE-2021-29981
Mozilla Foundation Security Advisory 2021-33
CVE: CVE-2021-29981
Product: Firefox
Impact: high
Fixed in: Firefox 91
Mozilla
Mozilla Foundation Security Advisory 2021-36: CVE-2021-29981
vendor_mozilla·CVSS 8.8
CVE-2021-29981 [HIGH] Mozilla Foundation Security Advisory 2021-36: CVE-2021-29981
Mozilla Foundation Security Advisory 2021-36
CVE: CVE-2021-29981
Product: Thunderbird
Impact: high
Fixed in: Thunderbird 91
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://bugzilla.mozilla.org/show_bug.cgi?id=1707774https://security.gentoo.org/glsa/202202-03https://www.mozilla.org/security/advisories/mfsa2021-33/https://www.mozilla.org/security/advisories/mfsa2021-36/https://bugzilla.mozilla.org/show_bug.cgi?id=1707774https://security.gentoo.org/glsa/202202-03https://www.mozilla.org/security/advisories/mfsa2021-33/https://www.mozilla.org/security/advisories/mfsa2021-36/
2021-08-17
Published