PT-2017-4236 · Linux+5 · Linux Kernel+5

Freenerguo + 1 · Published 2017-07-12 · Updated 2024-06-15 · CVE-2017-7541

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 4.12.3

Description The issue is related to a buffer overflow in the brcmf cfg80211 mgmt tx function. This can be exploited to cause a denial of service, resulting in a system crash, or potentially to gain privileges. The exploitation involves a crafted NL80211 CMD FRAME Netlink packet.

Recommendations For Linux kernel versions prior to 4.12.3, update to version 4.12.3 or later to resolve the issue. As a temporary workaround, consider restricting access to the brcmf cfg80211 mgmt tx function in the cfg80211.c module to minimize the risk of exploitation.

Fix

DoS

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

ALT-PU-2017-1952

ALT-PU-2017-1967

BDU:2023-00939

CESA-2017_2863

CESA-2017_2930

CVE-2017-7541

DSA-3927-1

DSA-3945-1

OPENSUSE-SU-2017_2110-1

OPENSUSE-SU-2017_2112-1

OPENSUSE-SU-2024:10728-1

OPENSUSE-SU-2024:13704-1

RHSA-2017:2863

RHSA-2017:2918

RHSA-2017:2930

RHSA-2017:2931

RHSA-2017_2863

RHSA-2017_2930

RHSA-2017_2931

SUSE-SU-2017:2286-1

SUSE-SU-2017:2869-1

SUSE-SU-2017:2908-1

SUSE-SU-2017:2920-1

SUSE-SU-2017:2956-1

USN-3405-1

USN-3405-2

USN-3419-1

USN-3419-2

USN-3422-1

USN-3422-2

Affected Products

Alt Linux

Centos

Linux Kernel

Red Hat

Suse

Ubuntu

References · 619

• https://github.com/torvalds/linux/commit/8f44c9a41386729fea410e688959ddaa9d51be7c · Patch
• https://ubuntu.com/security/CVE-2017-11176 · Vendor Advisory
• http://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.12.3 · Vendor Advisory
• http://openwall.com/lists/oss-security/2017/07/24/2 · Patch
• https://ubuntu.com/security/CVE-2016-8650 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2017-7541 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-7472 · Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=1473198 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2017:2956-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2017-7541 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2017:2869-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2017:2908-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-10044 · Vendor Advisory
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8f44c9a41386729fea410e688959ddaa9d51be7c · Patch
• https://access.redhat.com/errata/RHSA-2017:2863 · Vendor Advisory