PT-2017-17629 · Linux+2 · Linux Kernel+2

Jonghwan Kim · Published 2017-03-28 · Updated 2018-07-09 · CVE-2017-7277

Positive Technologies (AI Summary)

CVSS v3.1

7.1

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 4.10.6

Description The issue concerns the TCP stack in the Linux kernel, which improperly handles the SCM TIMESTAMPING OPT STATS feature. This mishandling allows local users to either obtain sensitive information from the kernel's internal socket data structures or cause a denial of service through an out-of-bounds read. The issue is related to the net/core/skbuff.c and net/socket.c files.

Recommendations For Linux kernel versions prior to 4.10.6, update to version 4.10.6 or later to resolve the issue.

Fix

DoS

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

ALT-PU-2017-1399

ALT-PU-2018-1991

CVE-2017-7277

USN-3314-1

Affected Products

Alt Linux

Linux Kernel

Ubuntu

References · 14

• https://github.com/torvalds/linux/commit/4ef1b2869447411ad3ef91ad7d4891a83c1a509a · Patch
• https://github.com/torvalds/linux/commit/8605330aac5a5785630aec8f64378a54891937cc · Patch
• https://osv.dev/vulnerability/CVE-2017-7277 · Vendor Advisory
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4ef1b2869447411ad3ef91ad7d4891a83c1a509a · Patch
• https://patchwork.ozlabs.org/patch/740639 · Patch
• https://ubuntu.com/security/notices/USN-3314-1 · Vendor Advisory
• https://patchwork.ozlabs.org/patch/740636 · Patch
• https://cve.org/CVERecord?id=CVE-2017-7277 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2017-7277 · Vendor Advisory
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8605330aac5a5785630aec8f64378a54891937cc · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2017-7277 · Security Note
• https://ubuntu.com/security/CVE-2017-7277 · Vendor Advisory
• https://lkml.org/lkml/2017/3/15/485 · Note
• http://securityfocus.com/bid/97141 · Note