EulerOS 2.0 SP2 : libX11 (EulerOS-SA-2019-2480)

critical Nessus Plugin ID 131633

Synopsis

The remote EulerOS host is missing multiple security updates.

Description

According to the versions of the libX11 packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

- The XGetImage function in X.org libX11 before 1.6.4 might allow remote X servers to gain privileges via vectors involving image type and geometry, which triggers out-of-bounds read operations.(CVE-2016-7942)

- The XListFonts function in X.org libX11 before 1.6.4 might allow remote X servers to gain privileges via vectors involving length fields, which trigger out-of-bounds write operations.(CVE-2016-7943)

- An issue was discovered in XListExtensions in ListExt.c in libX11 through 1.6.5. A malicious server can send a reply in which the first string overflows, causing a variable to be set to NULL that will be freed later on, leading to DoS (segmentation fault).(CVE-2018-14598)

- An issue was discovered in libX11 through 1.6.5. The function XListExtensions in ListExt.c is vulnerable to an off-by-one error caused by malicious server responses, leading to DoS or possibly unspecified other impact.(CVE-2018-14599)

- An issue was discovered in libX11 through 1.6.5. The function XListExtensions in ListExt.c interprets a variable as signed instead of unsigned, resulting in an out-of-bounds write (of up to 128 bytes), leading to DoS or remote code execution.(CVE-2018-14600)

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 libX11 packages.

See Also

http://www.nessus.org/u?10a09004

Plugin Details

Severity: Critical

ID: 131633

File Name: EulerOS_SA-2019-2480.nasl

Version: 1.5

Type: local

Published: 12/4/2019

Updated: 1/6/2021

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

Temporal Vector: E:U/RL:OF/RC:C

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

Vulnerability Information

CPE: p-cpe:/a:huawei:euleros:libX11, p-cpe:/a:huawei:euleros:libX11-common, p-cpe:/a:huawei:euleros:libX11-devel, cpe:/o:huawei:euleros:2.0

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: 12/4/2019

Reference Information

CVE: CVE-2016-7942, CVE-2016-7943, CVE-2018-14598, CVE-2018-14599, CVE-2018-14600