EulerOS 2.0 SP5 : libxkbcommon (EulerOS-SA-2020-2554)

medium Nessus Plugin ID 144269

Synopsis

The remote EulerOS host is missing multiple security updates.

Description

According to the versions of the libxkbcommon packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

- Unchecked NULL pointer usage in xkbcommon before 0.8.1 could be used by local attackers to crash (NULL pointer dereference) the xkbcommon parser by supplying a crafted keymap file, because geometry tokens were desupported incorrectly.(CVE-2018-15854)

- Unchecked NULL pointer usage in xkbcommon before 0.8.1 could be used by local attackers to crash (NULL pointer dereference) the xkbcommon parser by supplying a crafted keymap file, because the XkbFile for an xkb_geometry section was mishandled.(CVE-2018-15855)

- An infinite loop when reaching EOL unexpectedly in compose/parser.c (aka the keymap parser) in xkbcommon before 0.8.1 could be used by local attackers to cause a denial of service during parsing of crafted keymap files.(CVE-2018-15856)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected libxkbcommon packages.

See Also

http://www.nessus.org/u?d8d6f171

Plugin Details

Severity: Medium

ID: 144269

File Name: EulerOS_SA-2020-2554.nasl

Version: 1.4

Type: local

Published: 12/15/2020

Updated: 2/1/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:P

CVSS Score Source: CVE-2018-15856

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:huawei:euleros:libxkbcommon-devel, cpe:/o:huawei:euleros:2.0, p-cpe:/a:huawei:euleros:libxkbcommon-x11, p-cpe:/a:huawei:euleros:libxkbcommon

Required KB Items: Host/local_checks_enabled, Host/EulerOS/release, Host/EulerOS/rpm-list, Host/EulerOS/sp

Excluded KB Items: Host/EulerOS/uvp_version

Exploit Ease: No known exploits are available

Patch Publication Date: 12/15/2020

Reference Information

CVE: CVE-2018-15854, CVE-2018-15855, CVE-2018-15856