PT-2017-2769 · Linux+2 · Linux Kernel+2

V.E.O · Published 2017-05-16 · Updated 2023-01-17 · CVE-2017-10663

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 4.12.4

Description The issue is related to the sanity check ckpt function in fs/f2fs/super.c of the Linux kernel, which incorrectly checks the indexing of the blkoff and segno arrays. This can be exploited by a local attacker to gain privileges through unspecified vectors.

Recommendations For Linux kernel versions prior to 4.12.4, update to version 4.12.4 or later to resolve the issue. As a temporary workaround, consider restricting access to the sanity check ckpt function in fs/f2fs/super.c until a patch is available.

Fix

Improper Validation of Array Index

Weakness Enumeration

CWE-129

Related Identifiers

ALT-PU-2017-1967

ALT-PU-2017-2044

BDU:2017-02025

CVE-2017-10663

MGASA-2017-0278

MGASA-2017-0279

MGASA-2017-0287

MGASA-2017-0288

MGASA-2017-0296

MGASA-2017-0309

USN-3420-1

USN-3420-2

USN-3468-1

USN-3468-2

USN-3468-3

USN-3470-1

USN-3470-2

Affected Products

Alt Linux

Linux Kernel

Ubuntu

References · 81

• https://github.com/torvalds/linux/commit/15d3042a937c13f5d9244241c7a9c8416ff6e82a · Patch
• https://ubuntu.com/security/notices/USN-3468-2 · Vendor Advisory
• https://osv.dev/vulnerability/MGASA-2017-0278 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2017-10663 · Vendor Advisory
• https://osv.dev/vulnerability/USN-3468-3 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-1000251 · Vendor Advisory
• https://bdu.fstec.ru/vul/2017-02025 · Security Note
• https://advisories.mageia.org/MGASA-2017-0296.html · Security Note
• https://osv.dev/vulnerability/USN-3468-2 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-10663 · Vendor Advisory
• https://osv.dev/vulnerability/USN-3420-2 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-10911 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-11176 · Vendor Advisory
• https://osv.dev/vulnerability/MGASA-2017-0296 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2017-10663 · Security Note