CVE-2021-23973
published 2021-02-26CVE-2021-23973: When trying to load a cross-origin resource in an audio/video context a decoding error may have resulted, and the content of that error may have revealed…
PriorityP426medium6.5CVSS 3.1
AVNACLPRNUIRSUCHINAN
EPSS
1.37%
68.5th percentile
When trying to load a cross-origin resource in an audio/video context a decoding error may have resulted, and the content of that error may have revealed information about the resource. This vulnerability affects Firefox < 86, Thunderbird < 78.8, and Firefox ESR < 78.8.
Affected
15 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| debian | firefox | < firefox 86.0-1 (sid) | firefox 86.0-1 (sid) |
| debian | firefox-esr | < firefox 86.0-1 (sid) | firefox 86.0-1 (sid) |
| debian | thunderbird | < firefox 86.0-1 (sid) | firefox 86.0-1 (sid) |
| mozilla | firefox | < 86 | 86 |
| mozilla | firefox | < 86.0 | 86.0 |
| mozilla | firefox | — | — |
| mozilla | firefox_esr | < 78.8 | 78.8 |
| mozilla | thunderbird | < 78.8 | 78.8 |
| mozilla | thunderbird | >= 0 < 1:78.8.0-1 | 1:78.8.0-1 |
| mozilla | thunderbird | >= 0 < 1:78.8.0-1 | 1:78.8.0-1 |
| mozilla | thunderbird | >= 0 < 1:78.8.0-1 | 1:78.8.0-1 |
| mozilla | thunderbird | >= 0 < 1:78.8.0-1 | 1:78.8.0-1 |
| mozilla | thunderbird | >= 0 < 1:78.8.1+build1-0ubuntu0.20.04.1 | 1:78.8.1+build1-0ubuntu0.20.04.1 |
CVSS provenance
nvdv3.16.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
nvdv2.04.3MEDIUMAV:N/AC:M/Au:N/C:P/I:N/A:N
osv6.5MEDIUM
vendor_debian6.5MEDIUM
vendor_redhat6.5MEDIUM
vendor_ubuntu4.3MEDIUM
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Ubuntu
Thunderbird vulnerabilities
vendor_ubuntu·2021-05-06·CVSS 4.3
CVE-2021-23969 [MEDIUM] 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, or execute arbitrary code. (CVE-2021-23968,
CVE-2021-23969, CVE-2021-23973, CVE-2021-23978)
It was discovered that Thunderbird may keep key material in memory in some
circumstances. A local attacker could potentially exploit this to obtain
private keys. (CVE-2021-29950)
Instructions: After a standard system update you need to restart Thunderbird to make
all the necessary changes.
Ubuntu
Firefox vulnerabilities
vendor_ubuntu·2021-02-26
CVE-2021-23971 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, conduct cross-site scripting (XSS) attacks, bypass HTTP auth
phishing warnings, or execute arbitrary code.
Instructions: After a standard system update you need to restart Firefox to make
all the necessary changes.
Red Hat
Mozilla: MediaError message property could have leaked information about cross-origin resources
vendor_redhat·2021-02-23·CVSS 6.5
CVE-2021-23973 [MEDIUM] CWE-209 Mozilla: MediaError message property could have leaked information about cross-origin resources
Mozilla: MediaError message property could have leaked information about cross-origin resources
When trying to load a cross-origin resource in an audio/video context a decoding error may have resulted, and the content of that error may have revealed information about the resource. This vulnerability affects Firefox < 86, Thunderbird < 78.8, and Firefox ESR < 78.8.
Package: firefox (Red Hat Enterprise Linux 6) - Out of support scope
Package: thunderbird (Red Hat Enterprise Linux 6) - Out of support scope
Debian
CVE-2021-23973: firefox - When trying to load a cross-origin resource in an audio/video context a decoding...
vendor_debian·2021·CVSS 6.5
CVE-2021-23973 [MEDIUM] CVE-2021-23973: firefox - When trying to load a cross-origin resource in an audio/video context a decoding...
When trying to load a cross-origin resource in an audio/video context a decoding error may have resulted, and the content of that error may have revealed information about the resource. This vulnerability affects Firefox < 86, Thunderbird < 78.8, and Firefox ESR < 78.8.
Scope: local
sid: resolved (fixed in 86.0-1)
Mozilla
Mozilla Foundation Security Advisory 2021-08: CVE-2021-23973
vendor_mozilla·CVSS 6.5
CVE-2021-23973 [MEDIUM] Mozilla Foundation Security Advisory 2021-08: CVE-2021-23973
Mozilla Foundation Security Advisory 2021-08
CVE: CVE-2021-23973
Product: Firefox ESR
Impact: high
Fixed in: Firefox ESR 78.8
Mozilla
Mozilla Foundation Security Advisory 2021-07: CVE-2021-23973
vendor_mozilla·CVSS 6.5
CVE-2021-23973 [MEDIUM] Mozilla Foundation Security Advisory 2021-07: CVE-2021-23973
Mozilla Foundation Security Advisory 2021-07
CVE: CVE-2021-23973
Product: Firefox
Impact: high
Fixed in: Firefox 86
Mozilla
Mozilla Foundation Security Advisory 2021-09: CVE-2021-23973
vendor_mozilla·CVSS 6.5
CVE-2021-23973 [MEDIUM] Mozilla Foundation Security Advisory 2021-09: CVE-2021-23973
Mozilla Foundation Security Advisory 2021-09
CVE: CVE-2021-23973
Product: Thunderbird
Impact: high
Fixed in: Thunderbird 78.8
GHSA
GHSA-jw3c-jgq3-cf92: When trying to load a cross-origin resource in an audio/video context a decoding error may have resulted, and the content of that error may have revea
ghsa_unreviewed·2022-05-24
CVE-2021-23973 [MEDIUM] CWE-209 GHSA-jw3c-jgq3-cf92: When trying to load a cross-origin resource in an audio/video context a decoding error may have resulted, and the content of that error may have revea
When trying to load a cross-origin resource in an audio/video context a decoding error may have resulted, and the content of that error may have revealed information about the resource. This vulnerability affects Firefox < 86, Thunderbird < 78.8, and Firefox ESR < 78.8.
OSV
thunderbird vulnerabilities
osv·2021-05-06·CVSS 4.3
CVE-2021-23968 [MEDIUM] 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, or execute arbitrary code. (CVE-2021-23968,
CVE-2021-23969, CVE-2021-23973, CVE-2021-23978)
It was discovered that Thunderbird may keep key material in memory in some
circumstances. A local attacker could potentially exploit this to obtain
private keys. (CVE-2021-29950)
OSV
CVE-2021-23973: When trying to load a cross-origin resource in an audio/video context a decoding error may have resulted, and the content of that error may have revea
osv·2021-02-26·CVSS 6.5
CVE-2021-23973 [MEDIUM] CVE-2021-23973: When trying to load a cross-origin resource in an audio/video context a decoding error may have resulted, and the content of that error may have revea
When trying to load a cross-origin resource in an audio/video context a decoding error may have resulted, and the content of that error may have revealed information about the resource. This vulnerability affects Firefox < 86, Thunderbird < 78.8, and Firefox ESR < 78.8.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://bugzilla.mozilla.org/show_bug.cgi?id=1690976https://lists.debian.org/debian-lts-announce/2021/03/msg00000.htmlhttps://security.gentoo.org/glsa/202104-09https://security.gentoo.org/glsa/202104-10https://www.debian.org/security/2021/dsa-4866https://www.mozilla.org/security/advisories/mfsa2021-07/https://www.mozilla.org/security/advisories/mfsa2021-08/https://www.mozilla.org/security/advisories/mfsa2021-09/https://bugzilla.mozilla.org/show_bug.cgi?id=1690976https://lists.debian.org/debian-lts-announce/2021/03/msg00000.htmlhttps://security.gentoo.org/glsa/202104-09https://security.gentoo.org/glsa/202104-10https://www.debian.org/security/2021/dsa-4866https://www.mozilla.org/security/advisories/mfsa2021-07/https://www.mozilla.org/security/advisories/mfsa2021-08/https://www.mozilla.org/security/advisories/mfsa2021-09/
2021-02-26
Published