CVE-2018-15857
N/A
Published: August 25, 2018 at 09:00 PM UTC
Updated: June 17, 2026 at 01:43 AM UTC
3 products affected across 2 vendorsUbuntu LinuxXkbcommonLibxkbcommon
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Severity
N/A
Exploit prediction
EPSS 0.4%
Description
An invalid free in ExprAppendMultiKeysymList in xkbcomp/ast-build.c in xkbcommon before 0.8.1 could be used by local attackers to crash xkbcommon keymap parsers or possibly have unspecified other impact by supplying a crafted keymap file.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Ubuntu Linux· Canonicalrubygems
95%v < 0.8.1
Affected range stops below 0.8.1, so it looks safe — our inference, not a vendor statement
v < 0.8.1
Affected range stops below 0.8.1, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (6)
Vendor Advisoryx_refsource_REDHAT
Source: [email protected]
https://access.redhat.com/errata/RHSA-2019:2079x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/xkbcommon/libxkbcommon/commit/c1e5ac16e77a21f87bdf3bc4dea61b037a17dddbx_refsource_MISCMailing ListPatchThird Party Advisory
Source: [email protected]
https://lists.freedesktop.org/archives/wayland-devel/2018-August/039232.htmlVendor Advisoryx_refsource_GENTOOThird Party Advisory
Source: [email protected]
https://security.gentoo.org/glsa/201810-05Vendor Advisoryx_refsource_UBUNTUThird Party Advisory
Source: [email protected]
https://usn.ubuntu.com/3786-1/Vendor Advisoryx_refsource_UBUNTUThird Party Advisory
Source: [email protected]
https://usn.ubuntu.com/3786-2/Quick Info
StatusMODIFIED
CWE
CWE-416
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