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CVE-2022-39249

Status Candidate

Overview

Matrix Javascript SDK is the Matrix Client-Server SDK for JavaScript. Prior to version 19.7.0, an attacker cooperating with a malicious homeserver can construct messages appearing to have come from another person. Such messages will be marked with a grey shield on some platforms, but this may be missing in others. This attack is possible due to the matrix-js-sdk implementing a too permissive key forwarding strategy on the receiving end. Starting with version 19.7.0, the default policy for accepting key forwards has been made more strict in the matrix-js-sdk. matrix-js-sdk will now only accept forwarded keys in response to previously issued requests and only from own, verified devices. The SDK now sets a `trusted` flag on the decrypted message upon decryption, based on whether the key used to decrypt the message was received from a trusted source. Clients need to ensure that messages decrypted with a key with `trusted = false` are decorated appropriately, for example, by showing a warning for such messages. This attack requires coordination between a malicious homeserver and an attacker, and those who trust your homeservers do not need a workaround.

Related Files

Gentoo Linux Security Advisory 202210-35
Posted Nov 1, 2022
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202210-35 - Multiple vulnerabilities have been found in Mozilla Thunderbird, the worst of which could result in arbitrary code execution. Versions less than 102.4.0 are affected.

tags | advisory, arbitrary, vulnerability, code execution
systems | linux, gentoo
advisories | CVE-2022-39236, CVE-2022-39249, CVE-2022-39250, CVE-2022-39251, CVE-2022-42927, CVE-2022-42928, CVE-2022-42929, CVE-2022-42932
SHA-256 | cef704b7d2a92ba31e76f035d832531b2e8eb941f3e99d7e941c4a0371a0061e
Download | Favorite | View
Red Hat Security Advisory 2022-7184-01
Posted Oct 26, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-7184-01 - Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 102.4.0. Issues addressed include a denial of service vulnerability.

tags | advisory, denial of service
systems | linux, redhat
advisories | CVE-2022-39236, CVE-2022-39249, CVE-2022-39250, CVE-2022-39251, CVE-2022-42927, CVE-2022-42928, CVE-2022-42929, CVE-2022-42932
SHA-256 | 0d7d603f6c44dfcadbe648ff0a836c5ca0d974ec2fb028018760f82b1df3b205
Download | Favorite | View
Red Hat Security Advisory 2022-7183-01
Posted Oct 26, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-7183-01 - Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 102.4.0. Issues addressed include a denial of service vulnerability.

tags | advisory, denial of service
systems | linux, redhat
advisories | CVE-2022-39236, CVE-2022-39249, CVE-2022-39250, CVE-2022-39251, CVE-2022-42927, CVE-2022-42928, CVE-2022-42929, CVE-2022-42932
SHA-256 | 132f6b64f2c007f21dfec361dd8e7ebb121ba93db2574ff4f6377beee7e8a8fb
Download | Favorite | View
Red Hat Security Advisory 2022-7181-01
Posted Oct 26, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-7181-01 - Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 102.4.0. Issues addressed include a denial of service vulnerability.

tags | advisory, denial of service
systems | linux, redhat
advisories | CVE-2022-39236, CVE-2022-39249, CVE-2022-39250, CVE-2022-39251, CVE-2022-42927, CVE-2022-42928, CVE-2022-42929, CVE-2022-42932
SHA-256 | 8091b075ecc4ac2d2ace15c0b74b6460867eb4e26d301c17d4cff031f61e350f
Download | Favorite | View
Red Hat Security Advisory 2022-7178-01
Posted Oct 26, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-7178-01 - Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 102.4.0. Issues addressed include a denial of service vulnerability.

tags | advisory, denial of service
systems | linux, redhat
advisories | CVE-2022-39236, CVE-2022-39249, CVE-2022-39250, CVE-2022-39251, CVE-2022-42927, CVE-2022-42928, CVE-2022-42929, CVE-2022-42932
SHA-256 | 4c25ac6eed084b01e278c9d673a6142a96a308224db8d546dd1db9b6c8a09ba6
Download | Favorite | View
Red Hat Security Advisory 2022-7190-01
Posted Oct 26, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-7190-01 - Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 102.4.0. Issues addressed include a denial of service vulnerability.

tags | advisory, denial of service
systems | linux, redhat
advisories | CVE-2022-39236, CVE-2022-39249, CVE-2022-39250, CVE-2022-39251, CVE-2022-42927, CVE-2022-42928, CVE-2022-42929, CVE-2022-42932
SHA-256 | ca07c16fc206f48d40f0b763503abc690ad5afcc9c1028d6029d37ce02069a7c
Download | Favorite | View
Red Hat Security Advisory 2022-7182-01
Posted Oct 26, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-7182-01 - Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 102.4.0. Issues addressed include a denial of service vulnerability.

tags | advisory, denial of service
systems | linux, redhat
advisories | CVE-2022-39236, CVE-2022-39249, CVE-2022-39250, CVE-2022-39251, CVE-2022-42927, CVE-2022-42928, CVE-2022-42929, CVE-2022-42932
SHA-256 | 83659464d95934324ea7b6643703554f809001af4512ef8fcd098b21f884c2cb
Download | Favorite | View
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