Actively exploited · Published Sep 21, 2023 · Assigned by apple
CVE-2023-41993
High 8.8 Exploited
In plain English
A high-severity security flaw in macOS from Apple. Attackers are actively exploiting it in the wild (listed by CISA on September 25, 2023). The chance it is exploited in the next 30 days is estimated at 24.3% (higher than 98% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Fixed versions are available - upgrade the affected package.
CISA guidance
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Federal agencies must remediate by Oct 16, 2023.
Official description
The issue was addressed with improved checks. This issue is fixed in macOS Sonoma 14. Processing web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited against versions of iOS before iOS 16.7.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | webkit2gtk | 2.42.1-1~deb12u1 | DSA-5527-1 |
| Debian:12 | webkit2gtk | 2.42.1-1~deb12u1 | DEBIAN-CVE-2023-41993 |
| Debian:13 | webkit2gtk | 2.42.1-1 | DEBIAN-CVE-2023-41993 |
| Debian:14 | webkit2gtk | 2.42.1-1 | DEBIAN-CVE-2023-41993 |
| Debian:12 | wpewebkit | no fix listed | DEBIAN-CVE-2023-41993 |
| Debian:13 | wpewebkit | 2.42.1-1 | DEBIAN-CVE-2023-41993 |
| Debian:14 | wpewebkit | 2.42.1-1 | DEBIAN-CVE-2023-41993 |
| Ubuntu:22.04:LTS | qtwebkit-opensource-src | no fix listed | UBUNTU-CVE-2023-41993 |
| Ubuntu:24.04:LTS | qtwebkit-opensource-src | no fix listed | UBUNTU-CVE-2023-41993 |
| Ubuntu:22.04:LTS | webkit2gtk | 2.42.1-0ubuntu0.22.04.1 | UBUNTU-CVE-2023-41993 |
| Ubuntu:22.04:LTS | webkit2gtk | 2.42.1-0ubuntu0.22.04.1 | USN-6426-1 |
| Ubuntu:22.04:LTS | wpewebkit | no fix listed | UBUNTU-CVE-2023-41993 |
Affected products (as reported)
Weakness: CWE-754 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
References
- https://support.apple.com/en-us/HT213940
- https://security.gentoo.org/glsa/202401-33
- https://security.netapp.com/advisory/ntap-20240426-0004/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-41993 government-resource
- https://webkitgtk.org/security/WSA-2023-0009.html
- https://support.apple.com/kb/HT213930
- https://support.apple.com/kb/HT213926