CVE-2023-4362: Heap buffer overflow in Mojom IDL

Reference Links

• https://security-tracker.debian.org/tracker/CVE-2023-4362
• https://chromereleases.googleblog.com/2023/08/stable-channel-update-for-desktop_15.html
• https://crbug.com/1316379
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2DMXHPRUGBUDNHZCZCIVMWAUIEXEGMGT/
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OCFEK63FUHFXZH5MSG6TNQOXMQWM4M5S/
• https://www.debian.org/security/2023/dsa-5479
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-4362 (Advisory)
• https://security.gentoo.org/glsa/202401-34
• https://chromereleases.googleblog.com/2023/08/stable-channel-update-for-chromeos_25.html (Advisory)

Parent vulnerabilities

(Appears in the following advisories)

• 4978345371388270778

Peer vulnerabilities

(Found alongside the following vulnerabilities)

• CVE-2023-4369
• CVE-2023-20593
• CVE-2023-4211
• CVE-2023-4128
• CVE-2023-4147
• CVE-2023-3390
• CVE-2023-32804
• CVE-2022-40982
• CVE-2023-2312
• CVE-2023-4349
• CVE-2023-4350
• CVE-2023-4351
• CVE-2023-4352
• CVE-2023-4353
• CVE-2023-4354
• CVE-2023-4355
• CVE-2023-4356
• CVE-2023-4357
• CVE-2023-4358
• CVE-2023-4359
• CVE-2023-4360
• CVE-2023-4361
• CVE-2023-4363
• CVE-2023-4364
• CVE-2023-4365
• CVE-2023-4366
• CVE-2023-4367
• CVE-2023-4368
• CVE-2023-21264
• CVE-2020-29374

Frequently Asked Questions

• What is the severity of CVE-2023-4362?

  The severity of CVE-2023-4362 is medium.

• How can a remote attacker exploit CVE-2023-4362?

  A remote attacker can potentially exploit CVE-2023-4362 by compromising the renderer process and gaining control of a WebUI process, then using a crafted HTML page to exploit heap corruption.

• Which software is affected by CVE-2023-4362?

  Microsoft Edge (Chromium-based), Microsoft Edge version 116.0.1938.54, Google Chrome version up to 116.0.5845.96, Debian Debian Linux version 11.0 and version 12.0, and Debian Chromium packages with versions up to 114.0.5735.198-1~deb12u1 are affected by CVE-2023-4362.

• How can I fix CVE-2023-4362?

  To fix CVE-2023-4362, update to Microsoft Edge version 116.0.1938.54 or later, Google Chrome version 116.0.5845.96 or later, or the latest available version of Debian Chromium packages.

• Are there any references for CVE-2023-4362?

  Yes, you can find references for CVE-2023-4362 at the following links: [MSRC Microsoft](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-4362), [Google Chrome Releases](https://chromereleases.googleblog.com/2023/08/stable-channel-update-for-desktop_15.html), and [Chromium Bug Tracker](https://crbug.com/1316379).