CVE-2021-29988
published 2021-08-17CVE-2021-29988: Firefox incorrectly treated an inline list-item element as a block element, resulting in an out of bounds read or memory corruption, and a potentially…
PriorityP340high8.8CVSS 3.1
AVNACLPRNUIRSUCHIHAH
EPSS
1.39%
68.9th percentile
Firefox incorrectly treated an inline list-item element as a block element, resulting in an out of bounds read or memory corruption, and a potentially exploitable crash. This vulnerability affects Thunderbird < 78.13, Thunderbird < 91, Firefox ESR < 78.13, and Firefox < 91.
Affected
17 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | firefox | < firefox 91.0-1 (sid) | firefox 91.0-1 (sid) |
| debian | firefox-esr | < 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 | >= unspecified < 91 | 91 |
| mozilla | firefox_esr | < 78.13.0 | 78.13.0 |
| mozilla | firefox_esr | >= unspecified < 78.13 | 78.13 |
| mozilla | thunderbird | < 78.13.0 | 78.13.0 |
| mozilla | thunderbird | >= 0 < 1:78.13.0-1~deb11u1 | 1:78.13.0-1~deb11u1 |
| mozilla | thunderbird | >= 0 < 1:78.13.0-1 | 1:78.13.0-1 |
| mozilla | thunderbird | >= 0 < 1:78.13.0-1 | 1:78.13.0-1 |
| mozilla | thunderbird | >= 0 < 1:78.13.0-1 | 1:78.13.0-1 |
| mozilla | thunderbird | >= 0 < 1:78.13.0+build1-0ubuntu0.18.04.1 | 1:78.13.0+build1-0ubuntu0.18.04.1 |
| mozilla | thunderbird | >= 0 < 1:78.13.0+build1-0ubuntu0.20.04.2 | 1:78.13.0+build1-0ubuntu0.20.04.2 |
| mozilla | thunderbird | >= unspecified < 78.13 | 78.13 |
| 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_redhat8.8HIGH
vendor_ubuntu5.9MEDIUM
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Ubuntu
Thunderbird vulnerabilities
vendor_ubuntu·2021-08-31·CVSS 5.9
CVE-2021-29985 [MEDIUM] Thunderbird vulnerabilities
Title: Thunderbird vulnerabilities
Summary: Several security issues were fixed in Thunderbird.
It was discovered that Thunderbird didn't ignore IMAP server responses
prior to completion of the STARTTLS handshake. A person-in-the-middle
could potentially exploit this to trick Thunderbird into showing incorrect
information. (CVE-2021-29969)
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, or
execute arbitrary code. (CVE-2021-29970, CVE-2021-29976, CVE-2021-29980,
CVE-2021-29984, CVE-2021-29985, CVE-2021-29986, CVE-2021-29988,
CVE-2021-29989, CVE-2021-30547)
Instructions: After a standard system update you need to restart
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.
Red Hat
Mozilla: Memory corruption as a result of incorrect style treatment
vendor_redhat·2021-08-10·CVSS 8.8
CVE-2021-29988 [HIGH] CWE-119 Mozilla: Memory corruption as a result of incorrect style treatment
Mozilla: Memory corruption as a result of incorrect style treatment
Firefox incorrectly treated an inline list-item element as a block element, resulting in an out of bounds read or memory corruption, and a potentially exploitable crash. This vulnerability affects Thunderbird < 78.13, Thunderbird < 91, Firefox ESR < 78.13, and Firefox < 91.
Package: firefox (Red Hat Enterprise Linux 6) - Out of support scope
Package: thunderbird (Red Hat Enterprise Linux 6) - Out of support scope
Debian
CVE-2021-29988: firefox - Firefox incorrectly treated an inline list-item element as a block element, resu...
vendor_debian·2021·CVSS 8.8
CVE-2021-29988 [HIGH] CVE-2021-29988: firefox - Firefox incorrectly treated an inline list-item element as a block element, resu...
Firefox incorrectly treated an inline list-item element as a block element, resulting in an out of bounds read or memory corruption, and a potentially exploitable crash. This vulnerability affects Thunderbird < 78.13, Thunderbird < 91, Firefox ESR < 78.13, and Firefox < 91.
Scope: local
sid: resolved (fixed in 91.0-1)
Mozilla
Mozilla Foundation Security Advisory 2021-36: CVE-2021-29988
vendor_mozilla·CVSS 8.8
CVE-2021-29988 [HIGH] Mozilla Foundation Security Advisory 2021-36: CVE-2021-29988
Mozilla Foundation Security Advisory 2021-36
CVE: CVE-2021-29988
Product: Thunderbird
Impact: high
Fixed in: Thunderbird 91
Mozilla
Mozilla Foundation Security Advisory 2021-33: CVE-2021-29988
vendor_mozilla·CVSS 8.8
CVE-2021-29988 [HIGH] Mozilla Foundation Security Advisory 2021-33: CVE-2021-29988
Mozilla Foundation Security Advisory 2021-33
CVE: CVE-2021-29988
Product: Firefox
Impact: high
Fixed in: Firefox 91
Mozilla
Mozilla Foundation Security Advisory 2021-35: CVE-2021-29988
vendor_mozilla·CVSS 8.8
CVE-2021-29988 [HIGH] Mozilla Foundation Security Advisory 2021-35: CVE-2021-29988
Mozilla Foundation Security Advisory 2021-35
CVE: CVE-2021-29988
Product: Thunderbird
Impact: high
Fixed in: Thunderbird 78.13
Mozilla
Mozilla Foundation Security Advisory 2021-34: CVE-2021-29988
vendor_mozilla·CVSS 8.8
CVE-2021-29988 [HIGH] Mozilla Foundation Security Advisory 2021-34: CVE-2021-29988
Mozilla Foundation Security Advisory 2021-34
CVE: CVE-2021-29988
Product: Firefox ESR
Impact: high
Fixed in: Firefox ESR 78.13
GHSA
GHSA-rqrh-6wcg-wqw7: Firefox incorrectly treated an inline list-item element as a block element, resulting in an out of bounds read or memory corruption, and a potentially
ghsa_unreviewed·2022-05-24
CVE-2021-29988 [HIGH] CWE-125 GHSA-rqrh-6wcg-wqw7: Firefox incorrectly treated an inline list-item element as a block element, resulting in an out of bounds read or memory corruption, and a potentially
Firefox incorrectly treated an inline list-item element as a block element, resulting in an out of bounds read or memory corruption, and a potentially exploitable crash. This vulnerability affects Thunderbird < 78.13, Thunderbird < 91, Firefox ESR < 78.13, and Firefox < 91.
OSV
thunderbird vulnerabilities
osv·2021-08-31·CVSS 5.9
CVE-2021-29969 [MEDIUM] thunderbird vulnerabilities
thunderbird vulnerabilities
It was discovered that Thunderbird didn't ignore IMAP server responses
prior to completion of the STARTTLS handshake. A person-in-the-middle
could potentially exploit this to trick Thunderbird into showing incorrect
information. (CVE-2021-29969)
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, or
execute arbitrary code. (CVE-2021-29970, CVE-2021-29976, CVE-2021-29980,
CVE-2021-29984, CVE-2021-29985, CVE-2021-29986, CVE-2021-29988,
CVE-2021-29989, CVE-2021-30547)
OSV
CVE-2021-29988: Firefox incorrectly treated an inline list-item element as a block element, resulting in an out of bounds read or memory corruption, and a potentially
osv·2021-08-17·CVSS 8.8
CVE-2021-29988 [HIGH] CVE-2021-29988: Firefox incorrectly treated an inline list-item element as a block element, resulting in an out of bounds read or memory corruption, and a potentially
Firefox incorrectly treated an inline list-item element as a block element, resulting in an out of bounds read or memory corruption, and a potentially exploitable crash. This vulnerability affects Thunderbird < 78.13, Thunderbird < 91, Firefox ESR < 78.13, and Firefox < 91.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://bugzilla.mozilla.org/show_bug.cgi?id=1717922https://security.gentoo.org/glsa/202202-03https://security.gentoo.org/glsa/202208-14https://www.mozilla.org/security/advisories/mfsa2021-33/https://www.mozilla.org/security/advisories/mfsa2021-34/https://www.mozilla.org/security/advisories/mfsa2021-35/https://www.mozilla.org/security/advisories/mfsa2021-36/https://bugzilla.mozilla.org/show_bug.cgi?id=1717922https://security.gentoo.org/glsa/202202-03https://security.gentoo.org/glsa/202208-14https://www.mozilla.org/security/advisories/mfsa2021-33/https://www.mozilla.org/security/advisories/mfsa2021-34/https://www.mozilla.org/security/advisories/mfsa2021-35/https://www.mozilla.org/security/advisories/mfsa2021-36/
2021-08-17
Published