PT-2018-1040 · Linux+1 · Linux Kernel+1

Syzbot · Published 2018-01-03 · Updated 2023-01-19 · CVE-2018-5703

Positive Technologies (AI Summary)

CVSS v2.0

10

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 4.14.11

Description The issue is related to the tcp v6 syn recv sock function in the Linux kernel, which allows attackers to cause a denial of service or possibly have other impacts via vectors involving TLS. This is due to a slab out-of-bounds write in the net/ipv6/tcp ipv6.c file. The vulnerability can be exploited by a remote attacker to cause a denial of service or other unspecified effects.

Recommendations For Linux kernel versions prior to 4.14.11, update to a version 4.14.11 or later to resolve the issue. As a temporary workaround, consider restricting access to the affected function until a patch is available.

Fix

DoS

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

ALT-PU-2018-1557

ALT-PU-2018-2796

BDU:2018-00344

CVE-2018-5703

Affected Products

Alt Linux

Linux Kernel

References · 11

• https://osv.dev/vulnerability/CVE-2018-5703 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2018-5703 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-5703 · Security Note
• https://bdu.fstec.ru/vul/2018-00344 · Security Note
• https://cve.org/CVERecord?id=CVE-2018-5703 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2018-5703 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-5703 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2018-5703 · Vendor Advisory
• https://lkml.org/lkml/2018/1/16/53 · Note
• https://patchwork.ozlabs.org/patch/801530 · Note
• https://groups.google.com/d/msg/syzkaller-bugs/0PBeVnSzfqQ/5eXAlM46BQAJ · Note