Vulnerabilities
Misconfiguration
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CVE Vulnerabilities

CVE-2018-15856

Loop with Unreachable Exit Condition ('Infinite Loop')

Published: Aug 25, 2018 | Modified: Nov 21, 2024
CVSS 3.x
5.5
MEDIUM
Source:
NVD
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 2.x
2.1 LOW
AV:L/AC:L/Au:N/C:N/I:N/A:P
RedHat/V2
RedHat/V3
3.3 LOW
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Ubuntu
MEDIUM
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2018-15856
CWEhttps://cwe.mitre.org/data/definitions/835.html

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.

Weakness

The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.

Affected Software

NameVendorStart VersionEnd Version
XkbcommonXkbcommon*0.8.1 (excluding)
Red Hat Enterprise Linux 7RedHatgdm-1:3.28.2-16.el7*
Red Hat Enterprise Linux 7RedHatlibX11-0:1.6.7-2.el7*
Red Hat Enterprise Linux 7RedHatlibxkbcommon-0:0.7.1-3.el7*
Red Hat Enterprise Linux 7RedHatmesa-libGLw-0:8.0.0-5.el7*
Red Hat Enterprise Linux 7RedHatxorg-x11-drv-ati-0:19.0.1-2.el7*
Red Hat Enterprise Linux 7RedHatxorg-x11-drv-vesa-0:2.4.0-3.el7*
Red Hat Enterprise Linux 7RedHatxorg-x11-drv-wacom-0:0.36.1-3.el7*
Red Hat Enterprise Linux 7RedHatxorg-x11-server-0:1.20.4-7.el7*
LibxkbcommonUbuntubionic*
LibxkbcommonUbuntuesm-infra/bionic*
LibxkbcommonUbuntuesm-infra/xenial*
LibxkbcommonUbuntutrusty*
LibxkbcommonUbuntuupstream*
LibxkbcommonUbuntuxenial*

References

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