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CVE-2020-6819

Status Candidate

Overview

Under certain conditions, when running the nsDocShell destructor, a race condition can cause a use-after-free. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Thunderbird < 68.7.0, Firefox < 74.0.1, and Firefox ESR < 68.6.1.

Related Files

Debian Security Advisory 4653-1
Posted Apr 28, 2020
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4653-1 - Two security issues have been found in the Mozilla Firefox web browser, which could result in the execution of arbitrary code.

tags | advisory, web, arbitrary
systems | linux, debian
advisories | CVE-2020-6819, CVE-2020-6820
SHA-256 | 9206823583d1efd121a952d4237f63cb25f26a30e32c7ba4c33f0e1b15427997
Debian Security Advisory 4656-1
Posted Apr 28, 2020
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4656-1 - Multiple security issues have been found in Thunderbird which could result in denial of service or potentially the execution of arbitrary code.

tags | advisory, denial of service, arbitrary
systems | linux, debian
advisories | CVE-2020-6819, CVE-2020-6820, CVE-2020-6821, CVE-2020-6822, CVE-2020-6825
SHA-256 | 2d2c1cb1156457c6f32aebf2e73219a19c5c4e60c084f6e7ed144d3f9d0fd566
Red Hat Security Advisory 2020-1495-01
Posted Apr 17, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-1495-01 - Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 68.7.0. Issues addressed include out of bounds write and use-after-free vulnerabilities.

tags | advisory, vulnerability
systems | linux, redhat
advisories | CVE-2020-6819, CVE-2020-6820, CVE-2020-6821, CVE-2020-6822, CVE-2020-6825
SHA-256 | 0372171b6c3257e955ee13ea1cff0749a2aa8955f6d4bbf1eb56e15f1c77b11d
Red Hat Security Advisory 2020-1496-01
Posted Apr 17, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-1496-01 - Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 68.7.0. Issues addressed include out of bounds write and use-after-free vulnerabilities.

tags | advisory, vulnerability
systems | linux, redhat
advisories | CVE-2020-6819, CVE-2020-6820, CVE-2020-6821, CVE-2020-6822, CVE-2020-6825
SHA-256 | f9059f9f96f09681cca6c1c026a26d7147b0fd9e3e88a56fd2fa77c59fab7c6d
Red Hat Security Advisory 2020-1488-01
Posted Apr 16, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-1488-01 - Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 68.7.0. Issues addressed include out of bounds write and use-after-free vulnerabilities.

tags | advisory, vulnerability
systems | linux, redhat
advisories | CVE-2020-6819, CVE-2020-6820, CVE-2020-6821, CVE-2020-6822, CVE-2020-6825
SHA-256 | 3d641f1f595cc55e33f5677dc89e422acc8ca2db255c90e6d2c6773108b78b21
Red Hat Security Advisory 2020-1489-01
Posted Apr 16, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-1489-01 - Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 68.7.0. Issues addressed include out of bounds write and use-after-free vulnerabilities.

tags | advisory, vulnerability
systems | linux, redhat
advisories | CVE-2020-6819, CVE-2020-6820, CVE-2020-6821, CVE-2020-6822, CVE-2020-6825
SHA-256 | a5edb044c676b7ae3379c1e267c7dcb5faf5cc278704b1b13ddcbedb06e96680
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
Red Hat Security Advisory 2020-1338-01
Posted Apr 7, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-1338-01 - Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to version 68.6.1 ESR. Issues addressed include a use-after-free vulnerability.

tags | advisory, web
systems | linux, redhat
advisories | CVE-2020-6819, CVE-2020-6820
SHA-256 | 228a05c203332c82401d9060dd35ef656f4801e462fcd5cff15f07ea061caf0d
Red Hat Security Advisory 2020-1339-01
Posted Apr 7, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-1339-01 - Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to version 68.6.1 ESR. Issues addressed include a use-after-free vulnerability.

tags | advisory, web
systems | linux, redhat
advisories | CVE-2020-6819, CVE-2020-6820
SHA-256 | 7aed0fce6358da0f568a3a7f37e0165251908712f62c81cd7ec8bea5e2f46304
Red Hat Security Advisory 2020-1341-01
Posted Apr 7, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-1341-01 - Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to version 68.6.1 ESR. Issues addressed include a use-after-free vulnerability.

tags | advisory, web
systems | linux, redhat
advisories | CVE-2020-6819, CVE-2020-6820
SHA-256 | aa552207b45074c468ede186fcc63da9b3ee5bce8d39579c2648ca172d16f838
Red Hat Security Advisory 2020-1340-01
Posted Apr 7, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-1340-01 - Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to version 68.6.1 ESR. Issues addressed include a use-after-free vulnerability.

tags | advisory, web
systems | linux, redhat
advisories | CVE-2020-6819, CVE-2020-6820
SHA-256 | 196b8daee3c9c317fb78698178b4eb66a385b76bd319714384904a56c14c6763
Ubuntu Security Notice USN-4317-1
Posted Apr 6, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4317-1 - Two use-after-free bugs were discovered in Firefox. If a user were tricked in to opening a specially crafted website, an attacker could exploit these to cause a denial of service or execute arbitrary code.

tags | advisory, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2020-6819
SHA-256 | 3e2811d98dc9c78447f83a763155fcf9a8fa92184d344a3cab387e46b48406a5
Gentoo Linux Security Advisory 202004-07
Posted Apr 6, 2020
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202004-7 - Multiple vulnerabilities have been found in Mozilla Firefox, the worst of which could result in the arbitrary execution of code. Versions less than 74.0.1 are affected.

tags | advisory, arbitrary, vulnerability
systems | linux, gentoo
advisories | CVE-2020-6819, CVE-2020-6820
SHA-256 | 26f53858b2614b7136c16e5f94b7e35cbd4b1cb1d731a19bd92ebd9d6c74a7e2
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