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CVE-2020-26971

Status Candidate

Overview

Certain blit values provided by the user were not properly constrained leading to a heap buffer overflow on some video drivers. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6.

Related Files

Debian Security Advisory 4813-1
Posted Dec 28, 2020
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4813-1 - Multiple security issues have been found in the Mozilla Firefox web browser, which could potentially result in the execution of arbitrary code, information disclosure or CSS sanitiser bypass.

tags | advisory, web, arbitrary, info disclosure
systems | linux, debian
advisories | CVE-2020-16042, CVE-2020-26971, CVE-2020-26973, CVE-2020-26974, CVE-2020-26978, CVE-2020-35111, CVE-2020-35113
SHA-256 | 7c049e9f2c3d5a2f9bfcba92b367e1a93fb8ae2453346e9edbe11ef5a1674714
Debian Security Advisory 4815-1
Posted Dec 28, 2020
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4815-1 - Multiple security issues have been found in Thunderbird, which may lead to the execution of arbitrary code, denial of service or information leak.

tags | advisory, denial of service, arbitrary
systems | linux, debian
advisories | CVE-2020-16042, CVE-2020-26971, CVE-2020-26973, CVE-2020-26974, CVE-2020-26978, CVE-2020-35111, CVE-2020-35113
SHA-256 | 2f3172812c238f2f1fb029f212200ab8a63472748c4d507b24ac570b668ebaf9
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
SHA-256 | de30a1e21e5b7ada6ec4bcbb46cceddbefafa75528b46c501c1e55964f1b231f
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
SHA-256 | c3b8d96edc20367b29b6f1567947889144e9e30c79eeaebacc093d90b4c06f30
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
SHA-256 | 9d6b9ce88303489777415c0698630da4a4b24f0c0dea446783c5dfab50281584
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
SHA-256 | d73da8cf8633196724190d037d4a637357e4de5ee22c53686602843ab37dc815
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
SHA-256 | 3299b101c23ed4bdd8c74390c6aba9ffe059b2263c73916da04da21a12f82872
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
SHA-256 | cb7596a1511b1dcddcb41ae11f83810a42ffe8d9d5cb65daab66fd2776e78a04
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
SHA-256 | ca3466b7761859d3d6987ea698fdc515f4af1e8fc6d492fbb7e5591cf48ba090
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
SHA-256 | 1d9b01a8fe13f99a1ec3b0a95d02901d72757e0880ee055cd8711214397e7e5f
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
SHA-256 | 906d76c49b4a7842966f669e453460ed81d8b75ec9e8954f68ff6b496e5f1901
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
SHA-256 | 998d2429ad1fb62147deada155fb6a5fb1f43b5b7613d0101f00821f26fe0563
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
SHA-256 | e6484a6cffc48704dc129b53b332cfe62c59dbd1010cc46447bd096e73986049
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
SHA-256 | 318576415b678ce672ff1ee419536f7289fbdf5ff9c3f7eb5065d84831db1039
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