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CVE-2021-38509

Status Candidate

Overview

Due to an unusual sequence of attacker-controlled events, a Javascript alert() dialog with arbitrary (although unstyled) contents could be displayed over top an uncontrolled webpage of the attacker's choosing. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.

Related Files

Debian Security Advisory 5034-1
Posted Jan 28, 2022
Authored by Debian | Site debian.org

Debian Linux Security Advisory 5034-1 - Multiple security issues were discovered in Thunderbird, which could result in the execution of arbitrary code, spoofing, information disclosure, downgrade attacks on SMTP STARTTLS connections or misleading display of OpenPGP/MIME signatures.

tags | advisory, arbitrary, spoof, info disclosure
systems | linux, debian
advisories | CVE-2021-38496, CVE-2021-38500, CVE-2021-38502, CVE-2021-38503, CVE-2021-38504, CVE-2021-38506, CVE-2021-38507, CVE-2021-38508, CVE-2021-38509, CVE-2021-4126, CVE-2021-43528, CVE-2021-43529, CVE-2021-43534, CVE-2021-43535
SHA-256 | f888fa76ca31bfbcac032ef3035755456561fe803b0f061a25f987500c7081ac
Ubuntu Security Notice USN-5248-1
Posted Jan 24, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5248-1 - 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, trick a user into accepting unwanted permissions, conduct header splitting attacks, conduct spoofing attacks, bypass security restrictions, confuse the user, or execute arbitrary code.

tags | advisory, denial of service, arbitrary, spoof
systems | linux, ubuntu
advisories | CVE-2021-29981, CVE-2021-29987, CVE-2021-29991, CVE-2021-38495, CVE-2021-38497, CVE-2021-38498, CVE-2021-38500, CVE-2021-38502, CVE-2021-38503, CVE-2021-38504, CVE-2021-38508, CVE-2021-38509, CVE-2021-4126, CVE-2021-43528, CVE-2021-43536, CVE-2021-43537, CVE-2021-43541, CVE-2021-43542, CVE-2021-43656, CVE-2021-44538, CVE-2022-22737, CVE-2022-22740, CVE-2022-22741, CVE-2022-22745, CVE-2022-22747
SHA-256 | ee94116ff4e4b3081cc98a796565452f32b9979d45115195dba7be2d4510ee9a
Debian Security Advisory 5026-1
Posted Dec 28, 2021
Authored by Debian | Site debian.org

Debian Linux Security Advisory 5026-1 - 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 spoofing.

tags | advisory, web, arbitrary, spoof, info disclosure
systems | linux, debian
advisories | CVE-2021-38503, CVE-2021-38504, CVE-2021-38506, CVE-2021-38507, CVE-2021-38508, CVE-2021-38509, CVE-2021-43534, CVE-2021-43535, CVE-2021-43536, CVE-2021-43537, CVE-2021-43538, CVE-2021-43539, CVE-2021-43541, CVE-2021-43542
SHA-256 | 5dd3e34f7a37e68f3bcb4b4e4a624d36721ad43edbf9d5779c29309bb60ce56e
Ubuntu Security Notice USN-5152-1
Posted Nov 19, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5152-1 - 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, bypass security restrictions, spoof the UI, confuse the user, conduct phishing attacks, or execute arbitrary code.

tags | advisory, denial of service, arbitrary, spoof
systems | linux, ubuntu
advisories | CVE-2021-38503, CVE-2021-38509
SHA-256 | 4cf4f8b326d91fae79b633a52f5e15eabec035c4ef4fe52cd1e07e04a4c88083
Red Hat Security Advisory 2021-4605-03
Posted Nov 10, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-4605-03 - Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to version 91.3.0 ESR. Issues addressed include bypass, spoofing, and use-after-free vulnerabilities.

tags | advisory, web, spoof, vulnerability
systems | linux, redhat
advisories | CVE-2021-38503, CVE-2021-38504, CVE-2021-38506, CVE-2021-38507, CVE-2021-38508, CVE-2021-38509
SHA-256 | 7174623cd74de4d39aeedcadd0784ebb899d5e656741ac9329db468ebc0aaddd
Red Hat Security Advisory 2021-4607-03
Posted Nov 10, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-4607-03 - Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to version 91.3.0 ESR. Issues addressed include bypass, spoofing, and use-after-free vulnerabilities.

tags | advisory, web, spoof, vulnerability
systems | linux, redhat
advisories | CVE-2021-38503, CVE-2021-38504, CVE-2021-38506, CVE-2021-38507, CVE-2021-38508, CVE-2021-38509
SHA-256 | 512060d650183ad9b499ca29fbbaae75872ff7b6386cb9a233685645b36f2964
Red Hat Security Advisory 2021-4134-01
Posted Nov 5, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-4134-01 - Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 91.3.0. Issues addressed include bypass, spoofing, and use-after-free vulnerabilities.

tags | advisory, spoof, vulnerability
systems | linux, redhat
advisories | CVE-2021-38503, CVE-2021-38504, CVE-2021-38506, CVE-2021-38507, CVE-2021-38508, CVE-2021-38509
SHA-256 | a88eb764b65ec66c46ee3c76b70894989188f4e5965d111b4da0fa51f31687df
Red Hat Security Advisory 2021-4130-01
Posted Nov 5, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-4130-01 - Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 91.3.0. Issues addressed include bypass, spoofing, and use-after-free vulnerabilities.

tags | advisory, spoof, vulnerability
systems | linux, redhat
advisories | CVE-2021-38503, CVE-2021-38504, CVE-2021-38506, CVE-2021-38507, CVE-2021-38508, CVE-2021-38509
SHA-256 | e8817b7475fcd78d00b1e034f0f524743e2b13cedea16cb733a200b676c97c57
Red Hat Security Advisory 2021-4132-01
Posted Nov 5, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-4132-01 - Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 91.3.0. Issues addressed include bypass, spoofing, and use-after-free vulnerabilities.

tags | advisory, spoof, vulnerability
systems | linux, redhat
advisories | CVE-2021-38503, CVE-2021-38504, CVE-2021-38506, CVE-2021-38507, CVE-2021-38508, CVE-2021-38509
SHA-256 | 109d37dacc152c7201d9057d84aa66c0523cc939924c87f5d2d8031ddb6be127
Red Hat Security Advisory 2021-4133-01
Posted Nov 5, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-4133-01 - Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 91.3.0. Issues addressed include bypass, spoofing, and use-after-free vulnerabilities.

tags | advisory, spoof, vulnerability
systems | linux, redhat
advisories | CVE-2021-38503, CVE-2021-38504, CVE-2021-38506, CVE-2021-38507, CVE-2021-38508, CVE-2021-38509
SHA-256 | 55b1c367292bbdb62a4f4100dc6751df2844edde8cb290b99b3d7c708acfbae2
Red Hat Security Advisory 2021-4123-01
Posted Nov 4, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-4123-01 - Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to version 91.3.0 ESR. Issues addressed include bypass, spoofing, and use-after-free vulnerabilities.

tags | advisory, web, spoof, vulnerability
systems | linux, redhat
advisories | CVE-2021-38503, CVE-2021-38504, CVE-2021-38506, CVE-2021-38507, CVE-2021-38508, CVE-2021-38509
SHA-256 | f342798c35f6ececb49efee72ce50fee107ddd1a27d023a5c236b9c003f18c01
Red Hat Security Advisory 2021-4116-01
Posted Nov 3, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-4116-01 - Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to version 91.3.0 ESR. Issues addressed include bypass, spoofing, and use-after-free vulnerabilities.

tags | advisory, web, spoof, vulnerability
systems | linux, redhat
advisories | CVE-2021-38503, CVE-2021-38504, CVE-2021-38506, CVE-2021-38507, CVE-2021-38508, CVE-2021-38509
SHA-256 | d340da3bbc0d873d4f3d090e0b35d5f195584390daf77c757942fa75f7f37205
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