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CVE-2021-23969

Status Candidate

Overview

As specified in the W3C Content Security Policy draft, when creating a violation report, "User agents need to ensure that the source file is the URL requested by the page, pre-redirects. If that’s not possible, user agents need to strip the URL down to an origin to avoid unintentional leakage." Under certain types of redirects, Firefox incorrectly set the source file to be the destination of the redirects. This was fixed to be the redirect destination's origin. This vulnerability affects Firefox < 86, Thunderbird < 78.8, and Firefox ESR < 78.8.

Related Files

Red Hat Security Advisory 2021-0661-01
Posted Feb 25, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-0661-01 - Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 78.8.0.

tags | advisory
systems | linux, redhat
advisories | CVE-2021-23968, CVE-2021-23969, CVE-2021-23973, CVE-2021-23978
MD5 | a6b5451613ef17ae7492c92d7db10c87
Red Hat Security Advisory 2021-0659-01
Posted Feb 25, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-0659-01 - Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to version 78.8.0 ESR.

tags | advisory, web
systems | linux, redhat
advisories | CVE-2021-23968, CVE-2021-23969, CVE-2021-23973, CVE-2021-23978
MD5 | 55a53897a6c343eac10d5e1b653e8e71
Red Hat Security Advisory 2021-0662-01
Posted Feb 25, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-0662-01 - Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 78.8.0.

tags | advisory
systems | linux, redhat
advisories | CVE-2021-23968, CVE-2021-23969, CVE-2021-23973, CVE-2021-23978
MD5 | fdf5e94e5b91d008bde14d28cc51c15e
Red Hat Security Advisory 2021-0658-01
Posted Feb 25, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-0658-01 - Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 78.8.0.

tags | advisory
systems | linux, redhat
advisories | CVE-2021-23968, CVE-2021-23969, CVE-2021-23973, CVE-2021-23978
MD5 | 8c9c91d7678b644d9b8c21e810e04d67
Red Hat Security Advisory 2021-0656-01
Posted Feb 25, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-0656-01 - Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to version 78.8.0 ESR.

tags | advisory, web
systems | linux, redhat
advisories | CVE-2021-23968, CVE-2021-23969, CVE-2021-23973, CVE-2021-23978
MD5 | b5a84caf47849a53d03c83d5377b5e02
Red Hat Security Advisory 2021-0660-01
Posted Feb 25, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-0660-01 - Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to version 78.8.0 ESR.

tags | advisory, web
systems | linux, redhat
advisories | CVE-2021-23968, CVE-2021-23969, CVE-2021-23973, CVE-2021-23978
MD5 | f012ae6d84664f69823dac75c1b34664
Red Hat Security Advisory 2021-0655-01
Posted Feb 25, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-0655-01 - Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to version 78.8.0 ESR.

tags | advisory, web
systems | linux, redhat
advisories | CVE-2021-23968, CVE-2021-23969, CVE-2021-23973, CVE-2021-23978
MD5 | f4bff61c59bbd16cba2b830cc37c9f01
Red Hat Security Advisory 2021-0657-01
Posted Feb 25, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-0657-01 - Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 78.8.0.

tags | advisory
systems | linux, redhat
advisories | CVE-2021-23968, CVE-2021-23969, CVE-2021-23973, CVE-2021-23978
MD5 | b0616192fa6052c0f36cea310ccf4895
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