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CVE-2021-29945

Status Candidate

Overview

The WebAssembly JIT could miscalculate the size of a return type, which could lead to a null read and result in a crash. *Note: This issue only affected x86-32 platforms. Other platforms are unaffected.*. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.

Related Files

Ubuntu Security Notice USN-4995-1
Posted Jun 22, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4995-1 - 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, spoof the UI, bypass security restrictions, or execute arbitrary code. 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 credentials. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, spoof
systems | linux, windows, ubuntu
advisories | CVE-2021-23961, CVE-2021-23982, CVE-2021-23984, CVE-2021-23987, CVE-2021-23994, CVE-2021-23995, CVE-2021-23999, CVE-2021-24002, CVE-2021-29945, CVE-2021-29948, CVE-2021-29949, CVE-2021-29956, CVE-2021-29957
SHA-256 | 4377b3a315af5e52fb39b7a6d25d2f9f0a167af3746b0bb2a7e6f3615807b933
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 4895-1
Posted Apr 28, 2021
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4895-1 - Multiple security issues have been found in the Mozilla Firefox web browser, which could potentially result in the execution of arbitrary code, information disclosure, privilege escalation or spoofing.

tags | advisory, web, arbitrary, spoof, info disclosure
systems | linux, debian
advisories | CVE-2021-23961, CVE-2021-23994, CVE-2021-23995, CVE-2021-23998, CVE-2021-23999, CVE-2021-24002, CVE-2021-29945, CVE-2021-29946
SHA-256 | a90591c14b940c58ca0deaa0ce3ecba9d1b79aee98db18f5c67359115f4cc1be
Debian Security Advisory 4897-1
Posted Apr 28, 2021
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4897-1 - Multiple security issues were discovered in Thunderbird, which could result in the execution of arbitrary code or information disclosure. In adddition a number of security issues were addressed in the OpenPGP support.

tags | advisory, arbitrary, info disclosure
systems | linux, debian
advisories | CVE-2021-23961, CVE-2021-23991, CVE-2021-23992, CVE-2021-23993, CVE-2021-23994, CVE-2021-23995, CVE-2021-23998, CVE-2021-23999, CVE-2021-24002, CVE-2021-29945, CVE-2021-29946, CVE-2021-29948, CVE-2021-29949
SHA-256 | d046261a5bea547646c1ad71555d4faa8f38e2e133e219e9721c0bfe1ba81218
Red Hat Security Advisory 2021-1363-01
Posted Apr 26, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-1363-01 - Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to version 78.10.0 ESR. Issues addressed include bypass, spoofing, and use-after-free vulnerabilities.

tags | advisory, web, spoof, vulnerability
systems | linux, redhat
advisories | CVE-2021-23961, CVE-2021-23994, CVE-2021-23995, CVE-2021-23998, CVE-2021-23999, CVE-2021-24002, CVE-2021-29945, CVE-2021-29946
SHA-256 | 1f13cac2e9bf55b3d937c02a0f2822cb7a9c8825fa475eb6e47ca9b4a675fbec
Red Hat Security Advisory 2021-1361-01
Posted Apr 26, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-1361-01 - Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to version 78.10.0 ESR. Issues addressed include bypass, spoofing, and use-after-free vulnerabilities.

tags | advisory, web, spoof, vulnerability
systems | linux, redhat
advisories | CVE-2021-23961, CVE-2021-23994, CVE-2021-23995, CVE-2021-23998, CVE-2021-23999, CVE-2021-24002, CVE-2021-29945, CVE-2021-29946
SHA-256 | 06a96adc0cb4686dfca9e0532a5b12b3eaa30ac5119917c747f6e69c8502f147
Red Hat Security Advisory 2021-1360-01
Posted Apr 26, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-1360-01 - Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to version 78.10.0 ESR. Issues addressed include bypass, spoofing, and use-after-free vulnerabilities.

tags | advisory, web, spoof, vulnerability
systems | linux, redhat
advisories | CVE-2021-23961, CVE-2021-23994, CVE-2021-23995, CVE-2021-23998, CVE-2021-23999, CVE-2021-24002, CVE-2021-29945, CVE-2021-29946
SHA-256 | b3a1dce547d647bb72354e1d6bd119dc0341fe07198dd37451b7ab89ead4a09a
Red Hat Security Advisory 2021-1362-01
Posted Apr 26, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-1362-01 - Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to version 78.10.0 ESR. Issues addressed include bypass, spoofing, and use-after-free vulnerabilities.

tags | advisory, web, spoof, vulnerability
systems | linux, redhat
advisories | CVE-2021-23961, CVE-2021-23994, CVE-2021-23995, CVE-2021-23998, CVE-2021-23999, CVE-2021-24002, CVE-2021-29945, CVE-2021-29946
SHA-256 | 1920fc851fca65a2f7bb1803c762e0d503e1d8f744bd2136d5cf375badca3708
Red Hat Security Advisory 2021-1350-01
Posted Apr 26, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-1350-01 - Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 78.10.0. Issues addressed include bypass, spoofing, and use-after-free vulnerabilities.

tags | advisory, spoof, vulnerability
systems | linux, redhat
advisories | CVE-2021-23961, 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 | 3b714c0d61188b89eb22df6e2ed72e9a299bbb5e5d6a91e9c762d3071f86d9d9
Red Hat Security Advisory 2021-1352-01
Posted Apr 26, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-1352-01 - Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 78.10.0. Issues addressed include bypass, spoofing, and use-after-free vulnerabilities.

tags | advisory, spoof, vulnerability
systems | linux, redhat
advisories | CVE-2021-23961, 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 | f01e95af13ef5e8ef1f695e64073c2cf1619119c6ea9f99a7d700c9057af96c6
Red Hat Security Advisory 2021-1351-01
Posted Apr 26, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-1351-01 - Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 78.10.0. Issues addressed include bypass, spoofing, and use-after-free vulnerabilities.

tags | advisory, spoof, vulnerability
systems | linux, redhat
advisories | CVE-2021-23961, 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 | 9cb9c1c658e85899c18462a7ae12fcf7560d19e10446376cc29b65337a2b9051
Red Hat Security Advisory 2021-1353-01
Posted Apr 26, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-1353-01 - Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 78.10.0. Issues addressed include bypass, spoofing, and use-after-free vulnerabilities.

tags | advisory, spoof, vulnerability
systems | linux, redhat
advisories | CVE-2021-23961, 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 | 577ff192187d01b6d5999811959645ea5037d51fe42ea70deb2e5e2a1ed836c3
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