What is CVE-2017-18344?

CVE-2017-18344 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a Out-of-bounds Read flaw (CWE-125). CVE-2017-18344 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2017-18344?

CVE-2017-18344 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Is there a patch available for CVE-2017-18344?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2017-18344 patch availability.

Is CVE-2017-18344 actively exploited?

CVE-2017-18344 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Out-of-bounds Read (CWE-125)?

The product reads data past the end or before the beginning of the intended buffer. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/125.html

CVE-2017-18344

Medium

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).

Package Linux Kernel

Published 2018-07-26

Last modified 2024-11-21

CVSS version 3.0

Patch available

Awaiting data

CVSS 3.0 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Vector string

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Weakness type

CWE-125

CVE-2017-18344 is a Out-of-bounds Read vulnerability

What is Out-of-bounds Read?

The product reads data past the end or before the beginning of the intended buffer. Learn more on MITRE CWE

References

15 total

Exploit-DB
https://www.exploit-db.com/exploits/45175/

Exploit Third Party Advisory VDB Entry
GitHub
https://github.com/torvalds/linux/commit/cef31d9af908243421258f1df35a4a644604efbe

Patch Third Party Advisory
Securityfocus
http://www.securityfocus.com/bid/104909

Third Party Advisory VDB Entry
Securitytracker
http://www.securitytracker.com/id/1041414

Third Party Advisory VDB Entry
Red Hat
https://access.redhat.com/errata/RHSA-2018:2948

Third Party Advisory

Showing 5 of 15 references View all on NVD

Details

CVE ID CVE-2017-18344

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.0

Published 2018-07-26

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2017-18344?

CVE-2017-18344 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as an Out-of-bounds Read flaw (CWE-125) . CVE-2017-18344 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2017-18344?

CVE-2017-18344 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.0). The vector string is CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
Is there a patch available for CVE-2017-18344?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2017-18344 patch availability.
Is CVE-2017-18344 actively exploited?

No. CVE-2017-18344 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.