Debian update for webkit2gtk



Published: 2020-08-04
Risk High
Patch available YES
Number of vulnerabilities 6
CVE-ID CVE-2020-9862
CVE-2020-9893
CVE-2020-9894
CVE-2020-9895
CVE-2020-9915
CVE-2020-9925
CWE-ID CWE-77
CWE-416
CWE-125
CWE-264
CWE-79
Exploitation vector Network
Public exploit N/A
Vulnerable software
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Debian Linux
Operating systems & Components / Operating system

webkit2gtk (Debian package)
Operating systems & Components / Operating system package or component

Vendor Debian

Security Bulletin

This security bulletin contains information about 6 vulnerabilities.

1) Command Injection

EUVDB-ID: #VU32965

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2020-9862

CWE-ID: CWE-77 - Command injection

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary commands on the system.

The vulnerability exists due to improper input validation in Web Inspector when copying a URL. A remote attacker can trick the victim into copying a specially crafted URL and execute arbitrary commands on the system with privileges of the current user.

Mitigation

Update webkit2gtk package to version 2.28.4-1~deb10u1.

Vulnerable software versions

Debian Linux: All versions

webkit2gtk (Debian package): before 2.28.4-1~deb10u1


CPE2.3 External links

http://www.debian.org/security/2020/dsa-4739

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

2) Use-after-free

EUVDB-ID: #VU32966

Risk: High

CVSSv3.1:

CVE-ID: CVE-2020-9893

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 web content. A remote attacker can create a specially crafted web page, trick the victim into visiting it, trigger a use-after-free error and execute arbitrary code on the target system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Mitigation

Update webkit2gtk package to version 2.28.4-1~deb10u1.

Vulnerable software versions

Debian Linux: All versions

webkit2gtk (Debian package): before 2.28.4-1~deb10u1


CPE2.3 External links

http://www.debian.org/security/2020/dsa-4739

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

3) Out-of-bounds read

EUVDB-ID: #VU32967

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2020-9894

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition. A remote attacker can create a specially crafted web page, trick the victim into opening it, trigger out-of-bounds read error and read contents of memory on the system.

Mitigation

Update webkit2gtk package to version 2.28.4-1~deb10u1.

Vulnerable software versions

Debian Linux: All versions

webkit2gtk (Debian package): before 2.28.4-1~deb10u1


CPE2.3 External links

http://www.debian.org/security/2020/dsa-4739

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

4) Use-after-free

EUVDB-ID: #VU32968

Risk: High

CVSSv3.1:

CVE-ID: CVE-2020-9895

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 web content. A remote attacker can create a specially crafted web page, trick the victim into visiting it, trigger a use-after-free error and execute arbitrary code on the target system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Mitigation

Update webkit2gtk package to version 2.28.4-1~deb10u1.

Vulnerable software versions

Debian Linux: All versions

webkit2gtk (Debian package): before 2.28.4-1~deb10u1


CPE2.3 External links

http://www.debian.org/security/2020/dsa-4739

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

5) Security restrictions bypass

EUVDB-ID: #VU32969

Risk: Medium

CVSSv3.1:

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

Update webkit2gtk package to version 2.28.4-1~deb10u1.

Vulnerable software versions

Debian Linux: All versions

webkit2gtk (Debian package): before 2.28.4-1~deb10u1


CPE2.3 External links

http://www.debian.org/security/2020/dsa-4739

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

6) Univeral cross-site scripting

EUVDB-ID: #VU32970

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2020-9925

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of arbitrary website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation

Update webkit2gtk package to version 2.28.4-1~deb10u1.

Vulnerable software versions

Debian Linux: All versions

webkit2gtk (Debian package): before 2.28.4-1~deb10u1


CPE2.3 External links

http://www.debian.org/security/2020/dsa-4739

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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