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CVE-2021-23973

Status Candidate

Overview

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.

Related Files

Ubuntu Security Notice USN-4936-1
Posted May 6, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4936-1 - 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. 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. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, local
systems | linux, ubuntu
advisories | CVE-2021-23968, CVE-2021-23969, CVE-2021-23973, CVE-2021-29950
SHA-256 | 501454502ae69c1679ba468249f8ff39358baa3bba0fcb8166555d3966722930
Gentoo Linux Security Advisory 202104-10
Posted May 3, 2021
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202104-10 - Multiple vulnerabilities have been found in Mozilla Firefox, the worst of which could result in the arbitrary execution of code. Versions less than 88.0 are affected.

tags | advisory, arbitrary, vulnerability
systems | linux, gentoo
advisories | CVE-2021-23961, CVE-2021-23968, CVE-2021-23969, CVE-2021-23970, CVE-2021-23971, CVE-2021-23972, CVE-2021-23973, CVE-2021-23974, CVE-2021-23975, CVE-2021-23976, CVE-2021-23977, CVE-2021-23978, CVE-2021-23981, CVE-2021-23982, CVE-2021-23983, CVE-2021-23984, CVE-2021-23985, CVE-2021-23986, CVE-2021-23987, CVE-2021-23988, CVE-2021-23994, CVE-2021-23995, CVE-2021-23998, CVE-2021-23999, CVE-2021-24002, CVE-2021-29945
SHA-256 | 5ca81f664f4e17349799dff5ec0303eacf0a8ec7882e1cb1d495ace0532dfaaa
Gentoo Linux Security Advisory 202104-09
Posted May 3, 2021
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202104-9 - Multiple vulnerabilities have been found in Mozilla Thunderbird, the worst of which could result in the arbitrary execution of code. Versions less than 78.10.0 are affected.

tags | advisory, arbitrary, vulnerability
systems | linux, gentoo
advisories | CVE-2021-23961, CVE-2021-23968, CVE-2021-23969, CVE-2021-23973, CVE-2021-23978, CVE-2021-23981, CVE-2021-23982, CVE-2021-23984, CVE-2021-23987, CVE-2021-23994, CVE-2021-23995, CVE-2021-23998, CVE-2021-23999, CVE-2021-24002, CVE-2021-29945, CVE-2021-29946, CVE-2021-29948
SHA-256 | 14468afd1abbcf533ea6611cd505e671361f822b331808ff4f16194ccb84f300
Debian Security Advisory 4862-1
Posted Feb 28, 2021
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4862-1 - Multiple security issues have been found in the Mozilla Firefox web browser, which could potentially result in the execution of arbitrary code or information disclosure.

tags | advisory, web, arbitrary, info disclosure
systems | linux, debian
advisories | CVE-2021-23968, CVE-2021-23969, CVE-2021-23973, CVE-2021-23978
SHA-256 | 58e9f63ccd4b647aef2aec8484c3dda953d32a4ae7a76fe75ce16305e18aac17
Debian Security Advisory 4866-1
Posted Feb 28, 2021
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4866-1 - Multiple security issues were discovered in Thunderbird, which could result in the execution of arbitrary code or information disclosure.

tags | advisory, arbitrary, info disclosure
systems | linux, debian
advisories | CVE-2021-23968, CVE-2021-23969, CVE-2021-23973, CVE-2021-23978
SHA-256 | 6799803f6b184aa6dd8507e9afb88c97a9fb03cbd4498085740a1123c157048a
Red Hat Security Advisory 2021-0661-01
Posted Feb 25, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-0661-01 - Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 78.8.0.

tags | advisory
systems | linux, redhat
advisories | CVE-2021-23968, CVE-2021-23969, CVE-2021-23973, CVE-2021-23978
SHA-256 | 50249996a918e0a8b67786cc5650040baf73dcccebf1a227ffc9252490ef1bdc
Red Hat Security Advisory 2021-0659-01
Posted Feb 25, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-0659-01 - Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to version 78.8.0 ESR.

tags | advisory, web
systems | linux, redhat
advisories | CVE-2021-23968, CVE-2021-23969, CVE-2021-23973, CVE-2021-23978
SHA-256 | 4f8a4f4e4706f83526d9856621f47c878dbc622ae32883c4c3d231f25a7bcf16
Red Hat Security Advisory 2021-0662-01
Posted Feb 25, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-0662-01 - Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 78.8.0.

tags | advisory
systems | linux, redhat
advisories | CVE-2021-23968, CVE-2021-23969, CVE-2021-23973, CVE-2021-23978
SHA-256 | 0a8539dd3a37778a73bf1a89b9d59db8ccfb12e8511162844f05283397d59412
Red Hat Security Advisory 2021-0658-01
Posted Feb 25, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-0658-01 - Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 78.8.0.

tags | advisory
systems | linux, redhat
advisories | CVE-2021-23968, CVE-2021-23969, CVE-2021-23973, CVE-2021-23978
SHA-256 | 73a2c9174c20dc0e569929381870c75bdf573392ed64d37de59e3ab6498949fe
Red Hat Security Advisory 2021-0656-01
Posted Feb 25, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-0656-01 - Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to version 78.8.0 ESR.

tags | advisory, web
systems | linux, redhat
advisories | CVE-2021-23968, CVE-2021-23969, CVE-2021-23973, CVE-2021-23978
SHA-256 | 9db7074777b38e64083eec1c8c0a069948ee777e169a8f90f479140c47b94143
Red Hat Security Advisory 2021-0660-01
Posted Feb 25, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-0660-01 - Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to version 78.8.0 ESR.

tags | advisory, web
systems | linux, redhat
advisories | CVE-2021-23968, CVE-2021-23969, CVE-2021-23973, CVE-2021-23978
SHA-256 | 9b507f66964ea88d30e11718b3e525463fec8e2ff5841ccad7830c369aad733b
Red Hat Security Advisory 2021-0655-01
Posted Feb 25, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-0655-01 - Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to version 78.8.0 ESR.

tags | advisory, web
systems | linux, redhat
advisories | CVE-2021-23968, CVE-2021-23969, CVE-2021-23973, CVE-2021-23978
SHA-256 | faedb83733f505cf6130e1ee109bc6303d8527b3c3a83f8a69803417a99ea5ad
Red Hat Security Advisory 2021-0657-01
Posted Feb 25, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-0657-01 - Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 78.8.0.

tags | advisory
systems | linux, redhat
advisories | CVE-2021-23968, CVE-2021-23969, CVE-2021-23973, CVE-2021-23978
SHA-256 | b5448f767840a8b119e50ecc50ab5aee00ebaf6a81e6a47af7492b7b88a697a4
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