Debian update for webkit2gtk
| Risk | Critical |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2021-30858 |
| CWE-ID | CWE-416 |
| Exploitation vector | Network |
| Public exploit | This vulnerability is being exploited in the wild. |
| Vulnerable software Subscribe |
webkit2gtk (Debian package) Operating systems & Components / Operating system package or component |
| Vendor | Debian |
Security Bulletin
This security bulletin contains one critical risk vulnerability.
1) Use-after-free
EUVDB-ID: #VU56475
Risk: Critical
CVSSv3.1: 8.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C]
CVE-ID: CVE-2021-30858
CWE-ID:
CWE-416 - Use After Free
Exploit availability: Yes
DescriptionThe vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error when processing HTML content in WebKit. A remote attacker can trick the victim to visit a specially crafted web page, trigger a use-after-free error and execute arbitrary code on the system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
Note, the vulnerability is being actively exploited in-the-wild.
Update webkit2gtk package to one of the following versions: 2.32.4-1~deb10u1, 2.32.4-1~deb11u1.
Vulnerable software versionswebkit2gtk (Debian package): 2.32.1-1~deb10u1 - 2.32.3-1~deb10u1
External linkshttp://www.debian.org/security/2021/dsa-4975
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
Yes. This vulnerability is being exploited in the wild.
