SUSE update for webkit2gtk3
| Risk | Critical |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2021-21806 CVE-2021-30858 |
| CWE-ID | CWE-416 |
| Exploitation vector | Network |
| Public exploit |
Public exploit code for vulnerability #1 is available. Vulnerability #2 is being exploited in the wild. |
| Vulnerable software |
SUSE Linux Enterprise Module for Desktop Applications Operating systems & Components / Operating system SUSE Linux Enterprise Module for Basesystem Operating systems & Components / Operating system libwebkit2gtk3-lang Operating systems & Components / Operating system package or component webkit2gtk-4_0-injected-bundles-debuginfo Operating systems & Components / Operating system package or component webkit2gtk-4_0-injected-bundles Operating systems & Components / Operating system package or component libwebkit2gtk-4_0-37-debuginfo Operating systems & Components / Operating system package or component libwebkit2gtk-4_0-37 Operating systems & Components / Operating system package or component libjavascriptcoregtk-4_0-18-debuginfo Operating systems & Components / Operating system package or component libjavascriptcoregtk-4_0-18 Operating systems & Components / Operating system package or component webkit2gtk3-devel Operating systems & Components / Operating system package or component webkit2gtk3-debugsource Operating systems & Components / Operating system package or component typelib-1_0-WebKit2WebExtension-4_0 Operating systems & Components / Operating system package or component typelib-1_0-WebKit2-4_0 Operating systems & Components / Operating system package or component typelib-1_0-JavaScriptCore-4_0 Operating systems & Components / Operating system package or component |
| Vendor | SUSE |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Use-after-free
EUVDB-ID: #VU53781
Risk: High
CVSSv4.0: 7.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber]
CVE-ID: CVE-2021-21806
CWE-ID:
CWE-416 - Use After Free
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error when processing HTML content. A remote attacker can create a specially crafted web page, trick the victim into opening it, 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.
MitigationUpdate the affected package webkit2gtk3 to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Module for Desktop Applications: 15-SP2 - 15-SP3
SUSE Linux Enterprise Module for Basesystem: 15-SP2 - 15-SP3
libwebkit2gtk3-lang: before 2.32.4-12.3
webkit2gtk-4_0-injected-bundles-debuginfo: before 2.32.4-12.3
webkit2gtk-4_0-injected-bundles: before 2.32.4-12.3
libwebkit2gtk-4_0-37-debuginfo: before 2.32.4-12.3
libwebkit2gtk-4_0-37: before 2.32.4-12.3
libjavascriptcoregtk-4_0-18-debuginfo: before 2.32.4-12.3
libjavascriptcoregtk-4_0-18: before 2.32.4-12.3
webkit2gtk3-devel: before 2.32.4-12.3
webkit2gtk3-debugsource: before 2.32.4-12.3
typelib-1_0-WebKit2WebExtension-4_0: before 2.32.4-12.3
typelib-1_0-WebKit2-4_0: before 2.32.4-12.3
typelib-1_0-JavaScriptCore-4_0: before 2.32.4-12.3
CPE2.3- cpe:2.3:o:suse:suse_linux_enterprise_module_for_desktop_applications:15-SP2:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_module_for_desktop_applications:15-SP3:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_module_for_basesystem:15-SP2:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_module_for_basesystem:15-SP3:*:*:*:*:*:*:*
- cpe:2.3:a:suse:libwebkit2gtk3-lang:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:webkit2gtk-4_0-injected-bundles-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:webkit2gtk-4_0-injected-bundles:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libwebkit2gtk-4_0-37-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libwebkit2gtk-4_0-37:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libjavascriptcoregtk-4_0-18-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libjavascriptcoregtk-4_0-18:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:webkit2gtk3-devel:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:webkit2gtk3-debugsource:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:typelib-1_0-webkit2webextension-4_0:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:typelib-1_0-webkit2-4_0:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:typelib-1_0-javascriptcore-4_0:*:*:*:*:*:suse_linux:*:*
https://www.suse.com/support/update/announcement/2021/suse-su-20213353-1/
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. However, proof of concept for this vulnerability is available.
2) Use-after-free
EUVDB-ID: #VU56475
Risk: Critical
CVSSv4.0: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Red]
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 the affected package webkit2gtk3 to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Module for Desktop Applications: 15-SP2 - 15-SP3
SUSE Linux Enterprise Module for Basesystem: 15-SP2 - 15-SP3
libwebkit2gtk3-lang: before 2.32.4-12.3
webkit2gtk-4_0-injected-bundles-debuginfo: before 2.32.4-12.3
webkit2gtk-4_0-injected-bundles: before 2.32.4-12.3
libwebkit2gtk-4_0-37-debuginfo: before 2.32.4-12.3
libwebkit2gtk-4_0-37: before 2.32.4-12.3
libjavascriptcoregtk-4_0-18-debuginfo: before 2.32.4-12.3
libjavascriptcoregtk-4_0-18: before 2.32.4-12.3
webkit2gtk3-devel: before 2.32.4-12.3
webkit2gtk3-debugsource: before 2.32.4-12.3
typelib-1_0-WebKit2WebExtension-4_0: before 2.32.4-12.3
typelib-1_0-WebKit2-4_0: before 2.32.4-12.3
typelib-1_0-JavaScriptCore-4_0: before 2.32.4-12.3
CPE2.3- cpe:2.3:o:suse:suse_linux_enterprise_module_for_desktop_applications:15-SP2:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_module_for_desktop_applications:15-SP3:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_module_for_basesystem:15-SP2:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_module_for_basesystem:15-SP3:*:*:*:*:*:*:*
- cpe:2.3:a:suse:libwebkit2gtk3-lang:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:webkit2gtk-4_0-injected-bundles-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:webkit2gtk-4_0-injected-bundles:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libwebkit2gtk-4_0-37-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libwebkit2gtk-4_0-37:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libjavascriptcoregtk-4_0-18-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libjavascriptcoregtk-4_0-18:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:webkit2gtk3-devel:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:webkit2gtk3-debugsource:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:typelib-1_0-webkit2webextension-4_0:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:typelib-1_0-webkit2-4_0:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:typelib-1_0-javascriptcore-4_0:*:*:*:*:*:suse_linux:*:*
https://www.suse.com/support/update/announcement/2021/suse-su-20213353-1/
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.
