openEuler 22.03 LTS SP4 update for xorg-x11-server-xwayland



Risk Low
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2022-2320
CVE-2016-2848
CWE-ID CWE-787
CWE-20
Exploitation vector Network
Public exploit N/A
Vulnerable software
openEuler
Operating systems & Components / Operating system

xorg-x11-server-Xwayland-devel
Operating systems & Components / Operating system package or component

xorg-x11-server-Xwayland-debugsource
Operating systems & Components / Operating system package or component

xorg-x11-server-Xwayland-debuginfo
Operating systems & Components / Operating system package or component

xorg-x11-server-Xwayland
Operating systems & Components / Operating system package or component

Vendor openEuler

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Out-of-bounds write

EUVDB-ID: #VU65223

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-2320

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

    The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error within the ProcXkbSetDeviceInfo request handler of the Xkb extension. A local user can trigger an out-of-bounds write and execute arbitrary code with elevated privileges.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 22.03 LTS SP4

xorg-x11-server-Xwayland-devel: before 22.1.2-6

xorg-x11-server-Xwayland-debugsource: before 22.1.2-6

xorg-x11-server-Xwayland-debuginfo: before 22.1.2-6

xorg-x11-server-Xwayland: before 22.1.2-6

CPE2.3 External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2024-1817


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.

2) Denial of service

EUVDB-ID: #VU1043

Risk: Low

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-2848

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote unauthenticated user to perform DoS attack on the targete system.
The weakness is due to insuffcient handling of  options data in an OPT resource record. By sending a specially crafted DNS packet, attackers can trigger the named service to crash.
Successful exploitation of the vulnerability leads to denial of service on the vulnarable system.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 22.03 LTS SP4

xorg-x11-server-Xwayland-devel: before 22.1.2-6

xorg-x11-server-Xwayland-debugsource: before 22.1.2-6

xorg-x11-server-Xwayland-debuginfo: before 22.1.2-6

xorg-x11-server-Xwayland: before 22.1.2-6

CPE2.3 External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2024-1817


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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