CVE-2017-14991

Severity: medium (CVSS 5.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-10-04 · updated 2026-06-17
Weakness: CWE-200

Description

The sg_ioctl function in drivers/scsi/sg.c in the Linux kernel before 4.13.4 allows local users to obtain sensitive information from uninitialized kernel heap-memory locations via an SG_GET_REQUEST_TABLE ioctl call for /dev/sg0.

Affected products

Linux kernel: through 4.13.3

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3e0097499839e0fe3af380410eababe5a47c4cf9
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.4
http://www.securityfocus.com/bid/101187
https://github.com/torvalds/linux/commit/3e0097499839e0fe3af380410eababe5a47c4cf9
https://usn.ubuntu.com/3754-1/
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3e0097499839e0fe3af380410eababe5a47c4cf9
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.4
http://www.securityfocus.com/bid/101187
https://github.com/torvalds/linux/commit/3e0097499839e0fe3af380410eababe5a47c4cf9
https://usn.ubuntu.com/3754-1/

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