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CVE-2020-6806

Status Candidate

Overview

By carefully crafting promise resolutions, it was possible to cause an out-of-bounds read off the end of an array resized during script execution. This could have led to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 68.6, Firefox < 74, Firefox < ESR68.6, and Firefox ESR < 68.6.

Related Files

Firefox js::ReadableStreamCloseInternal Out-Of-Bounds Access
Posted May 1, 2020
Authored by Google Security Research, Glazvunov

Firefox suffers from an out-of-bounds access vulnerability in js::ReadableStreamCloseInternal.

tags | exploit
advisories | CVE-2020-6806
SHA-256 | 99415c833ecfac641a13e725f04e3b4948804b599bc7caa1dce74f5bc600ed6d
Ubuntu Security Notice USN-4328-1
Posted Apr 13, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4328-1 - It was discovered that Message ID calculation was based on uninitialized data. An attacker could potentially exploit this to obtain sensitive information. Multiple security issues were discovered in Thunderbird. If a user were tricked in to opening a specially crafted message, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information, or execute arbitrary code. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2019-20503, CVE-2020-6792, CVE-2020-6794, CVE-2020-6795, CVE-2020-6805, CVE-2020-6806, CVE-2020-6811, CVE-2020-6814, CVE-2020-6819, CVE-2020-6820, CVE-2020-6822
SHA-256 | f88fa78052414e963031d9b8353b20e056a0314a78805983ab7a4b73b4fa4c5c
Debian Security Advisory 4639-1
Posted Mar 28, 2020
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4639-1 - Multiple security issues have been found in the Mozilla Firefox web browser, which could potentially result in the execution of arbitrary code.

tags | advisory, web, arbitrary
systems | linux, debian
advisories | CVE-2019-20503, CVE-2020-6805, CVE-2020-6806, CVE-2020-6807, CVE-2020-6811, CVE-2020-6812, CVE-2020-6814
SHA-256 | 58a11b57f05936127a466550683eb0fa6f42c5d12f66fd85a10e35384557a63b
Debian Security Advisory 4642-1
Posted Mar 28, 2020
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4642-1 - Multiple security issues have been found in Thunderbird which could potentially result in the execution of arbitrary code.

tags | advisory, arbitrary
systems | linux, debian
advisories | CVE-2019-20503, CVE-2020-6805, CVE-2020-6806, CVE-2020-6807, CVE-2020-6811, CVE-2020-6812, CVE-2020-6814
SHA-256 | e1e39f2d3300a2b6b20787091d1689c4393bf0a273f99f3144c80ce1c4c7a1ab
Red Hat Security Advisory 2020-0914-01
Posted Mar 23, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-0914-01 - Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 68.6.0. Issues addressed include code execution and use-after-free vulnerabilities.

tags | advisory, vulnerability, code execution
systems | linux, redhat
advisories | CVE-2019-20503, CVE-2020-6805, CVE-2020-6806, CVE-2020-6807, CVE-2020-6811, CVE-2020-6812, CVE-2020-6814
SHA-256 | beb85d7ca160735199151f5499918115b209b88e07b683b5ff2dddfb99111ec4
Red Hat Security Advisory 2020-0919-01
Posted Mar 23, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-0919-01 - Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 68.6.0. Issues addressed include code execution and use-after-free vulnerabilities.

tags | advisory, vulnerability, code execution
systems | linux, redhat
advisories | CVE-2019-20503, CVE-2020-6805, CVE-2020-6806, CVE-2020-6807, CVE-2020-6811, CVE-2020-6812, CVE-2020-6814
SHA-256 | 03cefeeb5f760e41c4849868221de5ac8b9ce3b2ccab886e96694bfdad60090d
Red Hat Security Advisory 2020-0918-01
Posted Mar 23, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-0918-01 - Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 68.6.0. Issues addressed include code execution and use-after-free vulnerabilities.

tags | advisory, vulnerability, code execution
systems | linux, redhat
advisories | CVE-2019-20503, CVE-2020-6805, CVE-2020-6806, CVE-2020-6807, CVE-2020-6811, CVE-2020-6812, CVE-2020-6814
SHA-256 | e5991ea10e15fcae493ece1c5733f1598bd93cdbd8681511d14c006e74da0a7a
Red Hat Security Advisory 2020-0905-01
Posted Mar 19, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-0905-01 - Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 68.6.0. Issues addressed include code execution and use-after-free vulnerabilities.

tags | advisory, vulnerability, code execution
systems | linux, redhat
advisories | CVE-2019-20503, CVE-2020-6805, CVE-2020-6806, CVE-2020-6807, CVE-2020-6811, CVE-2020-6812, CVE-2020-6814
SHA-256 | 9d814414dd9c6b13663bbe6614359cbc520795a259e665930d89dd68e8ae424e
Red Hat Security Advisory 2020-0820-01
Posted Mar 16, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-0820-01 - Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to version 68.6.0 ESR. Issues addressed include code execution and use-after-free vulnerabilities.

tags | advisory, web, vulnerability, code execution
systems | linux, redhat
advisories | CVE-2019-20503, CVE-2020-6805, CVE-2020-6806, CVE-2020-6807, CVE-2020-6811, CVE-2020-6812, CVE-2020-6814
SHA-256 | 1b67e7b0bdba1ed67361cfcc4cc9652ff8b17e3d12dfc42de101439d19c5722b
Red Hat Security Advisory 2020-0819-01
Posted Mar 16, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-0819-01 - Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to version 68.6.0 ESR. Issues addressed include code execution and use-after-free vulnerabilities.

tags | advisory, web, vulnerability, code execution
systems | linux, redhat
advisories | CVE-2019-20503, CVE-2020-6805, CVE-2020-6806, CVE-2020-6807, CVE-2020-6811, CVE-2020-6812, CVE-2020-6814
SHA-256 | 1233527277971e5471feb0df67d99a5c52042191ae53b016c0088d2f6c92826c
Red Hat Security Advisory 2020-0816-01
Posted Mar 16, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-0816-01 - Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to version 68.6.0 ESR. Issues addressed include code execution and use-after-free vulnerabilities.

tags | advisory, web, vulnerability, code execution
systems | linux, redhat
advisories | CVE-2019-20503, CVE-2020-6805, CVE-2020-6806, CVE-2020-6807, CVE-2020-6811, CVE-2020-6812, CVE-2020-6814
SHA-256 | 0196abdf67491bbbe1a1f630bab069e6a04e2185d465b09cc09e9675b6dc0c42
Red Hat Security Advisory 2020-0815-01
Posted Mar 16, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-0815-01 - Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to version 68.6.0 ESR. Issues addressed include code execution and use-after-free vulnerabilities.

tags | advisory, web, vulnerability, code execution
systems | linux, redhat
advisories | CVE-2019-20503, CVE-2020-6805, CVE-2020-6806, CVE-2020-6807, CVE-2020-6811, CVE-2020-6812, CVE-2020-6814
SHA-256 | 50fbac47f9054ca6ab9d00c35260d5e7d9f2b8b28977ab5a7127f4b1e3ea35a1
Gentoo Linux Security Advisory 202003-10
Posted Mar 14, 2020
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202003-10 - Multiple vulnerabilities have been found in Mozilla Thunderbird, the worst of which could result in the arbitrary execution of code. Versions less than 68.6.0 are affected.

tags | advisory, arbitrary, vulnerability
systems | linux, gentoo
advisories | CVE-2019-11745, CVE-2019-11757, CVE-2019-11759, CVE-2019-11760, CVE-2019-11761, CVE-2019-11762, CVE-2019-11763, CVE-2019-11764, CVE-2019-17005, CVE-2019-17008, CVE-2019-17010, CVE-2019-17011, CVE-2019-17012, CVE-2019-20503, CVE-2020-6792, CVE-2020-6793, CVE-2020-6794, CVE-2020-6795, CVE-2020-6798, CVE-2020-6800, CVE-2020-6805, CVE-2020-6806, CVE-2020-6807, CVE-2020-6811, CVE-2020-6812, CVE-2020-6814
SHA-256 | 2bd6c6d0e9248abe6d1894cda6c23b4295f3ce1bc21529d3a5ffdc34d8150bbd
Gentoo Linux Security Advisory 202003-02
Posted Mar 12, 2020
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202003-2 - Multiple vulnerabilities have been found in Mozilla Firefox, the worst of which may allow execution of arbitrary code. Versions less than 68.6.0 are affected.

tags | advisory, arbitrary, vulnerability
systems | linux, gentoo
advisories | CVE-2019-11745, CVE-2019-17005, CVE-2019-17008, CVE-2019-17010, CVE-2019-17011, CVE-2019-17012, CVE-2019-17016, CVE-2019-17017, CVE-2019-17022, CVE-2019-17024, CVE-2019-17026, CVE-2019-20503, CVE-2020-6796, CVE-2020-6797, CVE-2020-6798, CVE-2020-6799, CVE-2020-6800, CVE-2020-6805, CVE-2020-6806, CVE-2020-6807, CVE-2020-6811, CVE-2020-6812, CVE-2020-6814
SHA-256 | 4a3a64b36591f6d0a1c27da9abbfe2f11b8739c200ebb1844cc7866106d27e08
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