Security restrictions bypass in webkit2gtk (Alpine package)



Published: 2020-07-29
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-9915
CWE-ID CWE-264
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 medium risk vulnerability.

1) Security restrictions bypass

EUVDB-ID: #VU32969

Risk: Medium

CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-9915

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to application does not properly impose Content Security Policy. A remote attacker can create a specially crafted web page, trick the victim into visiting it and bypass implemented security restrictions. The vulnerability may allow an attacker to perform cross-site scripting attacks or gain access to sensitive information.

Mitigation

Install update from vendor's website.

Vulnerable software versions

webkit2gtk (Alpine package): 2.28.3-r0

External links

http://git.alpinelinux.org/aports/commit/?id=fe214188a195f5576002285361735b8d7861fe87
http://git.alpinelinux.org/aports/commit/?id=9b09c5117dcccee35e6c8387d68aeec904a8da77


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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