PT-2018-11064 · Linux+3 · Linux Kernel+3

Shankara Pailoor · Published 2018-06-12 · Updated 2024-02-09 · CVE-2018-12233

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel versions through 4.17.1

Description A memory corruption bug in JFS can be triggered by calling setxattr twice with two different extended attribute names on the same file. This issue can be triggered by an unprivileged user with the ability to create files and execute programs. A kmalloc call is incorrect, leading to slab-out-of-bounds in jfs xattr.

Recommendations For Linux kernel versions through 4.17.1, as a temporary workaround, consider restricting access to the setxattr function until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

ALT-PU-2018-1971

ALT-PU-2018-1976

ALT-PU-2019-1433

CVE-2018-12233

DLA-1422-1

DLA-1422-2

DLA-1423-1

OPENSUSE-SU-2018_1773-1

OPENSUSE-SU-2018_2119-1

SUSE-SU-2018:1772-1

SUSE-SU-2018:1816-1

SUSE-SU-2018:2092-1

SUSE-SU-2018:2332-1

SUSE-SU-2018:2366-1

SUSE-SU-2018:2637-1

USN-3752-1

USN-3752-2

USN-3752-3

USN-3753-1

USN-3753-2

USN-3754-1

Affected Products

Alt Linux

Linux Kernel

Suse

Ubuntu

References · 528

• https://ubuntu.com/security/CVE-2017-9984 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-11412 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-10882 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-13406 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-11473 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-16531 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-3752-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-14991 · Vendor Advisory
• https://usn.ubuntu.com/3752-2 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-10021 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-6348 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2018-12233 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-10208 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-2671 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-2584 · Vendor Advisory