Arch Linux update for xorg-server



Risk High
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2017-10971
CVE-2017-10972
CWE-ID CWE-121
CWE-200
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Arch Linux
Operating systems & Components / Operating system

Vendor Arch Linux

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Stack-based buffer overflow

EUVDB-ID: #VU7408

Risk: High

CVSSv4.0: 7.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:U/U:Amber]

CVE-ID: CVE-2017-10971

CWE-ID: CWE-121 - Stack-based buffer overflow

Exploit availability: No

Description

The vulnerability allows a remote authenticated attacker to execute arbitrary code.

The weakness exists due to stack-based buffer overflow in the endianness conversion of X Events. A remote attacker can trigger memory corruption and crash or execute code in the context of the X Server.

Successful exploitation of the vulnerability may result in system compromise.

Mitigation

Update the affected package xorg-server to version 1.19.3-3.

Vulnerable software versions

Arch Linux: All versions

CPE2.3 External links

https://security.archlinux.org/advisory/ASA-201708-11


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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

2) Information disclosure

EUVDB-ID: #VU7409

Risk: Low

CVSSv4.0: 4.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-10972

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

Exploit availability: No

Description

The vulnerability allows a remote authenticated attacker to obtain potentially sensitive information.

The weakness exists due to handling of uninitialized data in endianness conversion in the XEvent. A remote attacker can access potentially privileged data from the X server.

Successful exploitation of the vulnerability results in information disclosure.

Mitigation

Update the affected package xorg-server to version 1.19.3-3.

Vulnerable software versions

Arch Linux: All versions

CPE2.3 External links

https://security.archlinux.org/advisory/ASA-201708-11


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user 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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