Use-after-free in WebKitGTK WebKitGTK+
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2020-11793 |
| CWE-ID | CWE-416 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
WebKitGTK+ Server applications / Frameworks for developing and running applications |
| Vendor | WebKitGTK |
Security Bulletin
This security bulletin contains one high risk vulnerability.
1) Use-after-free
EUVDB-ID: #VU30304
Risk: High
CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-11793
CWE-ID:
CWE-416 - Use After Free
Exploit availability: No
DescriptionThe vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
A use-after-free issue exists in WebKitGTK before 2.28.1 and WPE WebKit before 2.28.1 via crafted web content that allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash).
MitigationInstall update from vendor's website.
Vulnerable software versionsWebKitGTK+: 2.28.0
External linkshttp://lists.opensuse.org/opensuse-security-announce/2020-05/msg00008.html
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3P4YISPE5QX4YD54GDRZIH2X5RCH3QGW/
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/K3MQTRC6ITFTVS5R5Z24PMJS6FXJKGRD/
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UTKY2MWP6PB6TE3ZKOOMKX7HZUCQNYF6/
http://security.gentoo.org/glsa/202006-08
http://usn.ubuntu.com/4331-1/
http://webkitgtk.org/security/WSA-2020-0004.html
http://wpewebkit.org/security/WSA-2020-0004.html
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?
No. We are not aware of malware exploiting this vulnerability.
