Out-of-bounds Read Affecting kernel-uek-debug package, versions <0:2.6.39-400.301.1.el5uek
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Test your applications- Snyk ID SNYK-ORACLE5-KERNELUEKDEBUG-2531515
- published 10 Apr 2022
- disclosed 26 Jul 2018
Introduced: 26 Jul 2018
CVE-2017-18344 Open this link in a new tabHow to fix?
Upgrade Oracle:5
kernel-uek-debug
to version 0:2.6.39-400.301.1.el5uek or higher.
This issue was patched in ELSA-2018-4214
.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-uek-debug
package and not the kernel-uek-debug
package as distributed by Oracle
.
See How to fix?
for Oracle:5
relevant fixed versions and status.
The timer_create syscall implementation in kernel/time/posix-timers.c in the Linux kernel before 4.14.8 doesn't properly validate the sigevent->sigev_notify field, which leads to out-of-bounds access in the show_timer function (called when /proc/$PID/timers is read). This allows userspace applications to read arbitrary kernel memory (on a kernel built with CONFIG_POSIX_TIMERS and CONFIG_CHECKPOINT_RESTORE).
References
- https://linux.oracle.com/cve/CVE-2017-18344.html
- https://linux.oracle.com/errata/ELSA-2018-3083.html
- https://linux.oracle.com/errata/ELSA-2018-4196.html
- https://linux.oracle.com/errata/ELSA-2018-4211.html
- https://linux.oracle.com/errata/ELSA-2018-4214.html
- https://github.com/torvalds/linux/commit/cef31d9af908243421258f1df35a4a644604efbe
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.8
- http://www.securityfocus.com/bid/104909
- http://www.securitytracker.com/id/1041414
- https://www.exploit-db.com/exploits/45175/
- https://usn.ubuntu.com/3742-2/
- https://usn.ubuntu.com/3742-1/
- https://access.redhat.com/errata/RHSA-2018:3096
- https://access.redhat.com/errata/RHSA-2018:3083
- https://access.redhat.com/errata/RHSA-2018:2948
- https://access.redhat.com/errata/RHSA-2018:3459
- https://access.redhat.com/errata/RHSA-2018:3591
- https://access.redhat.com/errata/RHSA-2018:3590
- https://access.redhat.com/errata/RHSA-2018:3586
- https://access.redhat.com/errata/RHSA-2018:3540
- https://www.exploit-db.com/exploits/45175