PT-2018-3516 · Linux+2 · Linux Kernel+2

Wen Xu · Published 2018-07-26 · Updated 2019-09-02 · CVE-2018-14616

Positive Technologies (AI Summary)

CVSS v2.0

7.1

High

Base vector

AV:N/AC:M/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to 4.17.11

Description: The issue is related to a NULL pointer dereference in the fscrypt do page crypto() function in fs/crypto/crypto.c when operating on a file in a corrupted f2fs image. This can potentially allow an attacker to cause a denial of service.

Recommendations: For Linux kernel versions prior to 4.17.11, update to version 4.17.11 or later to resolve the issue. As a temporary workaround, consider avoiding the use of corrupted f2fs images to minimize the risk of exploitation.

Exploit

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

ALT-PU-2018-2092

ALT-PU-2018-2094

ALT-PU-2019-1433

BDU:2020-03257

CVE-2018-14616

DLA-1715-1

USN-3932-1

USN-3932-2

USN-4094-1

USN-4118-1

Affected Products

Alt Linux

Linux Kernel

Ubuntu

References · 113

• 🔥 https://bugzilla.kernel.org/show_bug.cgi?id=200465 · Exploit
• https://usn.ubuntu.com/4094-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-13631 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-7222 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-15214 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-9506 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-20784 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-12819 · Vendor Advisory
• https://osv.dev/vulnerability/USN-3932-2 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-15292 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-13098 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-13233 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-3900 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-14613 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-12984 · Vendor Advisory