CVE-2018-15857
published 2018-08-25CVE-2018-15857: 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…
PriorityP433high7.8CVSS 3.0
AVLACLPRLUINSUCHIHAH
EPSS
0.45%
36.7th percentile
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
13 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| debian | libxkbcommon | < libxkbcommon 0.8.2-1 (bookworm) | libxkbcommon 0.8.2-1 (bookworm) |
| xkbcommon | libxkbcommon | < 0.8.1 | 0.8.1 |
| xkbcommon | libxkbcommon | >= 0 < 0.8.2-1 | 0.8.2-1 |
| xkbcommon | libxkbcommon | >= 0 < 0.8.2-1 | 0.8.2-1 |
| xkbcommon | libxkbcommon | >= 0 < 0.8.2-1 | 0.8.2-1 |
| xkbcommon | libxkbcommon | >= 0 < 0.8.2-1 | 0.8.2-1 |
| xkbcommon | libxkbcommon | >= 0 < 0.4.1-0ubuntu1.1 | 0.4.1-0ubuntu1.1 |
| xkbcommon | libxkbcommon | >= 0 < 0.5.0-1ubuntu2.1 | 0.5.0-1ubuntu2.1 |
| xkbcommon | libxkbcommon | >= 0 < 0.8.0-1ubuntu0.1 | 0.8.0-1ubuntu0.1 |
| xkbcommon | xkbcommon | < 0.8.1 | 0.8.1 |
CVSS provenance
nvdv3.07.8HIGHCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvdv2.04.6MEDIUMAV:L/AC:L/Au:N/C:P/I:P/A:P
osv7.8HIGH
vendor_debian7.8LOW
vendor_redhat7.8HIGH
vendor_ubuntu5.5MEDIUM
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Ubuntu
libxkbcommon vulnerabilities
vendor_ubuntu·2018-11-06·CVSS 5.5
CVE-2018-15853 [MEDIUM] libxkbcommon vulnerabilities
Title: libxkbcommon vulnerabilities
Summary: Several security issues were fixed in libxkbcommon.
USN-3786-1 fixed several vulnerabilities in libxkbcommon. This
update provides the corresponding update for Ubuntu 18.04 LTS.
Original advisory details:
It was discovered that libxkbcommon incorrectly handled certain files.
An attacker could possibly use this issue to cause a denial of service.
(CVE-2018-15853, CVE-2018-15854, CVE-2018-15855, CVE-2018-15856,
CVE-2018-15857, CVE-2018-15858, CVE-2018-15859, CVE-2018-15861,
CVE-2018-15862, CVE-2018-15863, CVE-2018-15864)
Instructions: In general, a standard system update will make all the necessary changes.
Ubuntu
libxkbcommon vulnerabilities
vendor_ubuntu·2018-10-08·CVSS 5.5
CVE-2018-15853 [MEDIUM] libxkbcommon vulnerabilities
Title: libxkbcommon vulnerabilities
Summary: Several security issues were fixed in libxkbcommon.
It was discovered that libxkbcommon incorrectly handled certain files.
An attacker could possibly use this issue to cause a denial of service.
(CVE-2018-15853, CVE-2018-15854, CVE-2018-15855, CVE-2018-15856,
CVE-2018-15857, CVE-2018-15858, CVE-2018-15859, CVE-2018-15861,
CVE-2018-15862, CVE-2018-15863, CVE-2018-15864)
Instructions: In general, a standard system update will make all the necessary changes.
Red Hat
libxkbcommon: Invalid free in ExprAppendMultiKeysymList resulting in a crash
vendor_redhat·2018-07-30·CVSS 7.8
CVE-2018-15857 [HIGH] CWE-416 libxkbcommon: Invalid free in ExprAppendMultiKeysymList resulting in a crash
libxkbcommon: Invalid free in ExprAppendMultiKeysymList resulting in a crash
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.
Package: libxkbcommon (Red Hat Enterprise Linux 8) - Not affected
Debian
CVE-2018-15857: libxkbcommon - An invalid free in ExprAppendMultiKeysymList in xkbcomp/ast-build.c in xkbcommon...
vendor_debian·2018·CVSS 7.8
CVE-2018-15857 [HIGH] CVE-2018-15857: libxkbcommon - An invalid free in ExprAppendMultiKeysymList in xkbcomp/ast-build.c in xkbcommon...
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.
Scope: local
bookworm: resolved (fixed in 0.8.2-1)
bullseye: resolved (fixed in 0.8.2-1)
forky: resolved (fixed in 0.8.2-1)
sid: resolved (fixed in 0.8.2-1)
trixie: resolved (fixed in 0.8.2-1)
GHSA
GHSA-8vxx-7whg-r47h: An invalid free in ExprAppendMultiKeysymList in xkbcomp/ast-build
ghsa_unreviewed·2022-05-14
CVE-2018-15857 [HIGH] CWE-416 GHSA-8vxx-7whg-r47h: An invalid free in ExprAppendMultiKeysymList in xkbcomp/ast-build
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.
OSV
libxkbcommon vulnerabilities
osv·2018-11-06·CVSS 5.5
CVE-2018-15853 [MEDIUM] libxkbcommon vulnerabilities
libxkbcommon vulnerabilities
USN-3786-1 fixed several vulnerabilities in libxkbcommon. This
update provides the corresponding update for Ubuntu 18.04 LTS.
Original advisory details:
It was discovered that libxkbcommon incorrectly handled certain files.
An attacker could possibly use this issue to cause a denial of service.
(CVE-2018-15853, CVE-2018-15854, CVE-2018-15855, CVE-2018-15856,
CVE-2018-15857, CVE-2018-15858, CVE-2018-15859, CVE-2018-15861,
CVE-2018-15862, CVE-2018-15863, CVE-2018-15864)
OSV
libxkbcommon vulnerabilities
osv·2018-10-08·CVSS 5.5
CVE-2018-15853 [MEDIUM] libxkbcommon vulnerabilities
libxkbcommon vulnerabilities
It was discovered that libxkbcommon incorrectly handled certain files.
An attacker could possibly use this issue to cause a denial of service.
(CVE-2018-15853, CVE-2018-15854, CVE-2018-15855, CVE-2018-15856,
CVE-2018-15857, CVE-2018-15858, CVE-2018-15859, CVE-2018-15861,
CVE-2018-15862, CVE-2018-15863, CVE-2018-15864)
OSV
CVE-2018-15857: An invalid free in ExprAppendMultiKeysymList in xkbcomp/ast-build
osv·2018-08-25·CVSS 7.8
CVE-2018-15857 [HIGH] CVE-2018-15857: An invalid free in ExprAppendMultiKeysymList in xkbcomp/ast-build
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.
No detection rules found.
No public exploits indexed.
https://access.redhat.com/errata/RHSA-2019:2079https://github.com/xkbcommon/libxkbcommon/commit/c1e5ac16e77a21f87bdf3bc4dea61b037a17dddbhttps://lists.freedesktop.org/archives/wayland-devel/2018-August/039232.htmlhttps://security.gentoo.org/glsa/201810-05https://usn.ubuntu.com/3786-1/https://usn.ubuntu.com/3786-2/https://access.redhat.com/errata/RHSA-2019:2079https://github.com/xkbcommon/libxkbcommon/commit/c1e5ac16e77a21f87bdf3bc4dea61b037a17dddbhttps://lists.freedesktop.org/archives/wayland-devel/2018-August/039232.htmlhttps://security.gentoo.org/glsa/201810-05https://usn.ubuntu.com/3786-1/https://usn.ubuntu.com/3786-2/
2018-08-25
Published