Use-after-free in webkit2gtk (Alpine package)



Published: 2021-04-01
Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-13543
CWE-ID CWE-416
Exploitation vector Network
Public exploit N/A
Vulnerable software
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webkit2gtk (Alpine package)
Operating systems & Components / Operating system package or component

Vendor Alpine Linux Development Team

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Use-after-free

EUVDB-ID: #VU48720

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-2020-13543

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The 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.

Mitigation

Install update from vendor's website.

Vulnerable software versions

webkit2gtk (Alpine package): 2.30.6-r0

External links

http://git.alpinelinux.org/aports/commit/?id=ebae15620550ada712a7aacc337fef6746f83a5f


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.



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