Public exploit available
Public proof-of-concept or exploit code exists (ExploitDB / Metasploit / Nuclei).

CVE-2018-17182 — Use After Free in Kernel

CWE-416 — Use After Free22 documents11 sources
Severity
7.8HIGHNVD
OSV5.6OSV5.5
EPSS
8.5%
top 7.61%
CISA KEV
Not in KEV
Exploit
PoC available
Public exploit / PoC exists
Affected products
5
Linux KernelDebian LinuxCanonical Ubuntu Linux+2 more
Timeline
PublishedSep 19
Latest updateMay 14

Description

An issue was discovered in the Linux kernel through 4.18.8. The vmacache_flush_all function in mm/vmacache.c mishandles sequence number overflows. An attacker can trigger a use-after-free (and possibly gain privileges) via certain thread creation, map, unmap, invalidation, and dereference operations.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages5 packages

▶NVDlinux/linux_kernel3.16 — 3.16.58+5
▶Debianlinux/linux_kernel< 4.18.10-1+3
▶Ubuntulinux/linux_kernel< 4.4.0-137.163+1
▶debiandebian/linux< linux 4.18.10-1 (bookworm)

Also affects: Debian Linux 8.0, 9.0, Ubuntu Linux 14.04, 16.04, 18.04

Patches

Patch: git.kernel.org ↗Patch: www.securitytracker.com ↗Patch: github.com ↗

🔴Vulnerability Details

8
GHSA
GHSA-v788-jmxr-wgj9: An issue was discovered in the Linux kernel through 4↗2022-05-14
▶
OSV
linux-azure vulnerabilities↗2018-10-23
▶
OSV
linux-hwe, linux-gcp vulnerabilities↗2018-10-01
▶
OSV
linux, linux-aws, linux-gcp, linux-kvm, linux-oem, linux-raspi2 vulnerabilities↗2018-10-01
▶
OSV
linux-lts-xenial, linux-aws vulnerabilities↗2018-10-01
▶

💥Exploits & PoCs

1
Exploit-DB
Linux Kernel - VMA Use-After-Free via Buggy vmacache_flush_all() Fastpath Local Privilege Escalation↗2018-09-26
▶

📋Vendor Advisories

8
Android
CVE-2018-17182: Memory Manager↗2019-01-01
▶
Ubuntu
Linux kernel (Azure) vulnerabilities↗2018-10-23
▶
Ubuntu
Linux kernel (HWE) vulnerabilities↗2018-10-01
▶
Ubuntu
Linux kernel vulnerabilities↗2018-10-01
▶
Ubuntu
Linux kernel (Xenial HWE) vulnerabilities↗2018-10-01
▶

🕵️Threat Intelligence

2
Qualys
Hackers Exploit Facebook Bug, As Twitter DMs (Maybe) Got Misrouted↗2018-10-02
▶
Qualys
Hackers Exploit Facebook Bug, As Twitter DMs (Maybe) Got Misrouted | Qualys↗2018-10-02
▶

💬Community

2
Bugzilla
CVE-2018-17182 kernel: Use-after-free in the vmacache_flush_all function resulting in a possible privilege escalation [fedora-all]↗2018-09-20
▶
Bugzilla
CVE-2018-17182 kernel: Use-after-free in the vmacache_flush_all function resulting in a possible privilege escalation↗2018-09-20
▶