Huawei EulerOS: Security Advisory for libxkbcommon (EulerOS-SA-2021-2113)

Published: 2021-07-07 08:41:50
CVE Author: NIST National Vulnerability Database

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

Summary:
The remote host is missing an update for the Huawei EulerOS 'libxkbcommon' Linux Distribution Package(s) announced via the EulerOS-SA-2021-2113 advisory.

Detection Method:
Checks if a vulnerable Linux Distribution Package version is present on the target host.

Technical Details:
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) 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) 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)

Affected Versions:
'libxkbcommon' Linux Distribution Package(s) on Huawei EulerOS Virtualization for ARM 64 3.0.2.0.

Recommendations:
Please install the updated Linux Distribution Package(s).

Solution Type:
Vendor Patch

Detection Type:
Linux Distribution Package

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2018-15854
https://nvd.nist.gov/vuln/detail/CVE-2018-15855
https://nvd.nist.gov/vuln/detail/CVE-2018-15856

References:


https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2021-2113

Severity
Low
CVSS Score
2.1
Published
2021-07-07
Modified
2021-07-07
Category
Huawei EulerOS Local Security Checks

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