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CVE-2020-26978

Status Candidate

Overview

Using techniques that built on the slipstream research, a malicious webpage could have exposed both an internal network's hosts as well as services running on the user's local machine. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6.

Related Files

Gentoo Linux Security Advisory 202012-20
Posted Dec 24, 2020
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202012-20 - Multiple vulnerabilities have been found in Mozilla Firefox and Mozilla Thunderbird, the worst of which could result in the arbitrary execution of code. Versions less than 84.0 are affected.

tags | advisory, arbitrary, vulnerability
systems | linux, gentoo
advisories | CVE-2020-16042, CVE-2020-26971, CVE-2020-26973, CVE-2020-26974, CVE-2020-26978, CVE-2020-35111, CVE-2020-35113
MD5 | e3745dbe6ac37ed3f38ad62cc7dea0ca
Red Hat Security Advisory 2020-5645-01
Posted Dec 21, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-5645-01 - Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 78.6.0. Issues addressed include buffer overflow and use-after-free vulnerabilities.

tags | advisory, overflow, vulnerability
systems | linux, redhat
advisories | CVE-2020-16042, CVE-2020-26970, CVE-2020-26971, CVE-2020-26973, CVE-2020-26974, CVE-2020-26978, CVE-2020-35111, CVE-2020-35113
MD5 | 887724d501cc77e6d167545b4f7a8f07
Red Hat Security Advisory 2020-5644-01
Posted Dec 21, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-5644-01 - Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 78.6.0. Issues addressed include buffer overflow and use-after-free vulnerabilities.

tags | advisory, overflow, vulnerability
systems | linux, redhat
advisories | CVE-2020-16042, CVE-2020-26970, CVE-2020-26971, CVE-2020-26973, CVE-2020-26974, CVE-2020-26978, CVE-2020-35111, CVE-2020-35113
MD5 | 02b44be2aa46752abb2b82db4dd7b3f4
Red Hat Security Advisory 2020-5624-01
Posted Dec 17, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-5624-01 - Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 78.6.0. Issues addressed include buffer overflow and use-after-free vulnerabilities.

tags | advisory, overflow, vulnerability
systems | linux, redhat
advisories | CVE-2020-16042, CVE-2020-26971, CVE-2020-26973, CVE-2020-26974, CVE-2020-26978, CVE-2020-35111, CVE-2020-35113
MD5 | 1b85130d0bc80a90969aadf4021351bb
Red Hat Security Advisory 2020-5622-01
Posted Dec 17, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-5622-01 - Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 78.6.0. Issues addressed include buffer overflow and use-after-free vulnerabilities.

tags | advisory, overflow, vulnerability
systems | linux, redhat
advisories | CVE-2020-16042, CVE-2020-26971, CVE-2020-26973, CVE-2020-26974, CVE-2020-26978, CVE-2020-35111, CVE-2020-35113
MD5 | 19b44f04a0feddd5032df7a821546491
Red Hat Security Advisory 2020-5618-01
Posted Dec 17, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-5618-01 - Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 78.6.0. Issues addressed include buffer overflow and use-after-free vulnerabilities.

tags | advisory, overflow, vulnerability
systems | linux, redhat
advisories | CVE-2020-16042, CVE-2020-26971, CVE-2020-26973, CVE-2020-26974, CVE-2020-26978, CVE-2020-35111, CVE-2020-35113
MD5 | 467f70259b95c4d42a8e13e31751a47f
Red Hat Security Advisory 2020-5561-01
Posted Dec 16, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-5561-01 - Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to version 78.6.0 ESR. Issues addressed include buffer overflow and use-after-free vulnerabilities.

tags | advisory, web, overflow, vulnerability
systems | linux, redhat
advisories | CVE-2020-16042, CVE-2020-26971, CVE-2020-26973, CVE-2020-26974, CVE-2020-26978, CVE-2020-35111, CVE-2020-35113
MD5 | 1292899c96444df436f0bcaf8528f1ff
Red Hat Security Advisory 2020-5565-01
Posted Dec 16, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-5565-01 - Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to version 78.6.0 ESR. Issues addressed include buffer overflow and use-after-free vulnerabilities.

tags | advisory, web, overflow, vulnerability
systems | linux, redhat
advisories | CVE-2020-16042, CVE-2020-26971, CVE-2020-26973, CVE-2020-26974, CVE-2020-26978, CVE-2020-35111, CVE-2020-35113
MD5 | 18b6008f665352c1743ec5a7d9501963
Red Hat Security Advisory 2020-5563-01
Posted Dec 16, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-5563-01 - Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to version 78.6.0 ESR. Issues addressed include buffer overflow and use-after-free vulnerabilities.

tags | advisory, web, overflow, vulnerability
systems | linux, redhat
advisories | CVE-2020-16042, CVE-2020-26971, CVE-2020-26973, CVE-2020-26974, CVE-2020-26978, CVE-2020-35111, CVE-2020-35113
MD5 | cec1f685b3612c0214a0781027aeeaea
Red Hat Security Advisory 2020-5562-01
Posted Dec 16, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-5562-01 - Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to version 78.6.0 ESR. Issues addressed include buffer overflow and use-after-free vulnerabilities.

tags | advisory, web, overflow, vulnerability
systems | linux, redhat
advisories | CVE-2020-16042, CVE-2020-26971, CVE-2020-26973, CVE-2020-26974, CVE-2020-26978, CVE-2020-35111, CVE-2020-35113
MD5 | 02630f42bd6e1a72b317a4e7cc22ba4e
Red Hat Security Advisory 2020-5564-01
Posted Dec 16, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-5564-01 - Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to version 78.6.0 ESR. Issues addressed include buffer overflow and use-after-free vulnerabilities.

tags | advisory, web, overflow, vulnerability
systems | linux, redhat
advisories | CVE-2020-16042, CVE-2020-26971, CVE-2020-26973, CVE-2020-26974, CVE-2020-26978, CVE-2020-35111, CVE-2020-35113
MD5 | 6370f5370aab1fa5b8de5c8fc0fdff07
Ubuntu Security Notice USN-4671-1
Posted Dec 16, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4671-1 - 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, bypass the CSS sanitizer, bypass security restrictions, spoof the URL bar, or execute arbitrary code. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, spoof
systems | linux, ubuntu
advisories | CVE-2020-16042, CVE-2020-26971, CVE-2020-26972, CVE-2020-26974, CVE-2020-26976, CVE-2020-26978, CVE-2020-35111, CVE-2020-35113, CVE-2020-35114
MD5 | f011e19269912c246f796e240397e2e9
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