CVE-2018-15862
published 2018-08-25CVE-2018-15862: Unchecked NULL pointer usage in LookupModMask in xkbcomp/expr.c in xkbcommon before 0.8.2 could be used by local attackers to crash (NULL pointer dereference)…
PriorityP417medium5.5CVSS 3.0
AVLACLPRLUINSUCNINAH
EPSS
0.43%
35.6th percentile
Unchecked NULL pointer usage in LookupModMask in xkbcomp/expr.c in xkbcommon before 0.8.2 could be used by local attackers to crash (NULL pointer dereference) the xkbcommon parser by supplying a crafted keymap file with invalid virtual modifiers.
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 | — |
| 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 | — |
CVSS provenance
nvdv3.05.5MEDIUMCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
nvdv2.02.1LOWAV:L/AC:L/Au:N/C:N/I:N/A:P
osv5.5MEDIUM
vendor_debian5.5LOW
vendor_redhat5.5MEDIUM
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.
Debian
CVE-2018-15862: libxkbcommon - Unchecked NULL pointer usage in LookupModMask in xkbcomp/expr.c in xkbcommon bef...
vendor_debian·2018·CVSS 5.5
CVE-2018-15862 [MEDIUM] CVE-2018-15862: libxkbcommon - Unchecked NULL pointer usage in LookupModMask in xkbcomp/expr.c in xkbcommon bef...
Unchecked NULL pointer usage in LookupModMask in xkbcomp/expr.c in xkbcommon before 0.8.2 could be used by local attackers to crash (NULL pointer dereference) the xkbcommon parser by supplying a crafted keymap file with invalid virtual modifiers.
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)
Red Hat
libxkbcommon: NULL pointer dereference in LookupModMask resulting in a crash
vendor_redhat·2017-06-26·CVSS 5.5
CVE-2018-15862 [MEDIUM] CWE-476 libxkbcommon: NULL pointer dereference in LookupModMask resulting in a crash
libxkbcommon: NULL pointer dereference in LookupModMask resulting in a crash
Unchecked NULL pointer usage in LookupModMask in xkbcomp/expr.c in xkbcommon before 0.8.2 could be used by local attackers to crash (NULL pointer dereference) the xkbcommon parser by supplying a crafted keymap file with invalid virtual modifiers.
Package: libxkbcommon (Red Hat Enterprise Linux 8) - Not affected
GHSA
GHSA-qw38-vjfp-wm54: Unchecked NULL pointer usage in LookupModMask in xkbcomp/expr
ghsa_unreviewed·2022-05-14
CVE-2018-15862 [MEDIUM] CWE-476 GHSA-qw38-vjfp-wm54: Unchecked NULL pointer usage in LookupModMask in xkbcomp/expr
Unchecked NULL pointer usage in LookupModMask in xkbcomp/expr.c in xkbcommon before 0.8.2 could be used by local attackers to crash (NULL pointer dereference) the xkbcommon parser by supplying a crafted keymap file with invalid virtual modifiers.
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-2018-15862: Unchecked NULL pointer usage in LookupModMask in xkbcomp/expr
osv·2018-08-25·CVSS 5.5
CVE-2018-15862 [MEDIUM] CVE-2018-15862: Unchecked NULL pointer usage in LookupModMask in xkbcomp/expr
Unchecked NULL pointer usage in LookupModMask in xkbcomp/expr.c in xkbcommon before 0.8.2 could be used by local attackers to crash (NULL pointer dereference) the xkbcommon parser by supplying a crafted keymap file with invalid virtual modifiers.
No detection rules found.
No public exploits indexed.
https://access.redhat.com/errata/RHSA-2019:2079https://github.com/xkbcommon/libxkbcommon/commit/4e2ee9c3f6050d773f8bbe05bc0edb17f1ff8371https://lists.freedesktop.org/archives/wayland-devel/2018-August/039243.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/4e2ee9c3f6050d773f8bbe05bc0edb17f1ff8371https://lists.freedesktop.org/archives/wayland-devel/2018-August/039243.htmlhttps://security.gentoo.org/glsa/201810-05https://usn.ubuntu.com/3786-1/https://usn.ubuntu.com/3786-2/
2018-08-25
Published