CVE-2018-18710

Severity: medium (CVSS 5.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2018-10-29 · updated 2026-06-17
Weakness: CWE-200

Description

An issue was discovered in the Linux kernel through 4.19. An information leak in cdrom_ioctl_select_disc in drivers/cdrom/cdrom.c could be used by local attackers to read kernel memory because a cast from unsigned long to int interferes with bounds checking. This is similar to CVE-2018-10940 and CVE-2018-16658.

Affected products

Canonical Ubuntu Linux: 12.04, 14.04, 16.04, 18.04, 18.10
Debian Linux: 8.0
Linux kernel: through 4.19

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e4f3aa2e1e67bb48dfbaaf1cad59013d5a5bc276
http://www.securityfocus.com/bid/106041
https://github.com/torvalds/linux/commit/e4f3aa2e1e67bb48dfbaaf1cad59013d5a5bc276
https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html
https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html
https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html
https://usn.ubuntu.com/3846-1/
https://usn.ubuntu.com/3847-1/
https://usn.ubuntu.com/3847-2/
https://usn.ubuntu.com/3847-3/
https://usn.ubuntu.com/3848-1/
https://usn.ubuntu.com/3848-2/

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