Out-of-bounds read in xorg-server (Alpine package)



Published: 2020-08-26
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-14345
CWE-ID CWE-125
Exploitation vector Local
Public exploit N/A
Vulnerable software
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xorg-server (Alpine package)
Operating systems & Components / Operating system package or component

Vendor Alpine Linux Development Team

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Out-of-bounds read

EUVDB-ID: #VU46028

Risk: Low

CVSSv3.1: 2.5 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-14345

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

Exploit availability: No

Description

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in XkbSetNames(). A local user can run a specially crafted program to trigger out-of-bounds read error and read contents of memory on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

xorg-server (Alpine package): 1.20.8-r4

External links

http://git.alpinelinux.org/aports/commit/?id=f879bf5f08445e893d84bb4104588c6c3659abd8


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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