7.8

CVE-2018-17182: canonical ubuntu_linux Use After Free

Modified
AliasesSUSE-SU-2018:3032-1SUSE-SU-2018:3032-2SUSE-SU-2018:3100-1
Published 19-09-2018Last modified 05-08-2024

Vulnerability summary

CVE-2018-17182 is a high (CVSS 7.8) Use After Free vulnerability in canonical ubuntu_linux. EPSS estimates a 3.21% chance of exploitation in the next 30 days, higher than 88.1% of scored vulnerabilities. 1 public exploit is recorded.

Priority
Prioritiseweaponized exploit

Weaponized exploit (exploit-database, 26-09-2018)

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (NVD)
EPSS score
3.21%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits1exploit-database

Advisory lineage

Upstream 0 · Downstream 28 · Related 21
DLA-1529-1DLA-1531-1DSA-4308-1MGASA-2018-0391MGASA-2018-0418MGASA-2018-0419

Timeline

  1. 19-09-2018
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

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 metrics

5 scores · 3 sources · 3 versions

EPSS trend

Probability

3.21%

Chance of exploitation in the next 30 days

Percentile

88%

Versus all other CVEs

30-day change

No change 0.00 pp

From 3.21% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

1 found
  • exploit-databaselocallinuxVerified

    Linux Kernel - VMA Use-After-Free via Buggy vmacache_flush_all() Fastpath Local Privilege Escalation

    Maturity: weaponized

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Suse30 products
  • kernel-bigmem&distro=SUSE Linux Enterprise Server 11 SP4< 3.0.101-108.77.1
  • kernel-bigmem&distro=SUSE Linux Enterprise Server for SAP Applications 11 SP4< 3.0.101-108.77.1
  • kernel-default&distro=SUSE Linux Enterprise Server 11 SP4< 3.0.101-108.77.1
  • kernel-default&distro=SUSE Linux Enterprise Server 12 SP1-LTSS< 3.12.74-60.64.107.1
  • kernel-default&distro=SUSE Linux Enterprise Server for SAP Applications 11 SP4< 3.0.101-108.77.1
Ubuntu17 products
  • linux< 4.4.0-137.163 | < 4.15.0-36.39
  • linux-aws< 4.4.0-1031.34 | < 4.4.0-1069.79 | < 4.15.0-1023.23
  • linux-azure< 4.15.0-1031.32~14.04.1 | < 4.15.0-1025.26~16.04.1 | < 4.15.0-1025.26
  • linux-azure-fdeAll versions (No fix recorded)
  • linux-fips< 4.4.0-1008.10
Debian2 products
Netapp2 products
Canonical1 product
Linux1 product
  • linux_kernel≥ 3.16, < 3.16.58 | ≥ 3.17, < 3.18.123 | ≥ 3.19, < 4.4.157 | ≥ 4.5, < 4.9.128 | ≥ 4.10, < 4.14.71 | ≥ 4.15, < 4.18.9

6 vendors · 53 products

References

31 links
Show all 31 references