PT-2016-1585 · Linux+2 · Linux Kernel+2

Mark Seaborn · Published 2015-03-27 · Updated 2017-02-17 · CVE-2016-0823

Positive Technologies (AI Summary)

CVSS v3.1

4.0

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 3.19.3

Description The issue is related to the pagemap open function in fs/proc/task mmu.c of the Linux kernel, which lacks protection of internal data. This can be exploited by a local attacker to gain access to sensitive information by reading the pagemap file. The exploitation allows local users to obtain sensitive physical-address information.

Recommendations For Linux kernel versions prior to 3.19.3, update to version 3.19.3 or later to resolve the issue. As a temporary workaround, consider restricting access to the pagemap file to minimize the risk of exploitation.

Fix

Information Disclosure

Weakness Enumeration

CWE-200

Related Identifiers

ALT-PU-2015-1326

ALT-PU-2015-1849

BDU:2016-00886

CVE-2016-0823

OPENSUSE-SU-2016_2625-1

SUSE-SU-2016:2976-1

SUSE-SU-2016:3069-1

SUSE-SU-2017:0333-1

SUSE-SU-2017:0494-1

Affected Products

Alt Linux

Linux Kernel

Suse

References · 253

• https://osv.dev/vulnerability/DEBIAN-CVE-2016-0823 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2017:0494-1 · Vendor Advisory
• http://source.android.com/security/bulletin/2016-03-01.html · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2016-0823 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2016-0823 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2016-0823 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2016-0823 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2017:0333-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2016:2976-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2016-0823 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-0823 · Vendor Advisory
• https://bdu.fstec.ru/vul/2016-00886 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2016:3069-1 · Vendor Advisory
• https://github.com/torvalds/linux/commit/ab676b7d6fbf4b294bf198fb27ade5b0e865c7ce · Note
• https://bugzilla.suse.com/976867 · Note