Distribution advisory
This page covers CVE-2023-42843 as tracked by Ubuntu, for the package qtwebkit-opensource-src. The fix is available in version 2.44.0-0ubuntu0.22.04.1; earlier versions remain affected.
How this vulnerability can be exploited
This issue can be reached over the network, attack complexity is high, an attacker needs no privileges on the target. A user must be tricked into taking some action. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.
CVSS metrics in full
The score comes from this vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
- Attack vector: Network — reachable from anywhere that can route to the service.
- Attack complexity: High — the attacker first has to win a race, learn a secret or otherwise prepare the target.
- Privileges required: None — an unauthenticated stranger can try it.
- User interaction: Required — someone has to click, open or visit something.
- Scope: Unchanged — the damage stays inside the vulnerable component.
- Confidentiality impact: High — total loss, or loss the attacker controls.
- Integrity impact: High — total loss, or loss the attacker controls.
- Availability impact: High — total loss, or loss the attacker controls.
Weakness class
UBUNTU-CVE-2023-42843 is classified as CWE-290: Authentication Bypass by Spoofing. Identity is inferred from something an attacker can forge, such as a header or address.
Affected software
UBUNTU-CVE-2023-42843 is recorded against 5 packages.
- qtwebkit-opensource-src
- qtwebkit-source
- webkit2gtk (fixed in 2.44.0-0ubuntu0.22.04.1)
- webkitgtk
- wpewebkit
Timeline and source
Published on 21 February 2024 and last revised on 20 May 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.
References
ubuntu.com (Report)
webkitgtk.org (Report)
www.cve.org (Report)
ubuntu.com (Advisory)
Other advisories for this package
qtwebkit-opensource-src has other advisories on record. If you are patching this one, these are worth checking on the same host:
Same weakness in other software
These advisories are the same class of weakness (CWE-290: Authentication Bypass by Spoofing) in other software:
