CVE-2018-17182

HIGH
7.8
CVSS Score
Published: September 19, 2018 at 09:00 AM UTC
Updated: June 17, 2026 at 01:45 AM UTC
5 products affected across 4 vendorsLinux KernelDebian LinuxUbuntu Linux

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Severity
HIGH7.8
Exploit prediction
EPSS 3%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

3.16 ≤ v < 3.16.583.17 ≤ v < 3.18.1233.19 ≤ v < 4.4.1574.10 ≤ v < 4.14.714.15 ≤ v < 4.18.94.5 ≤ v < 4.9.128
Affected range stops below 3.16.58, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.18.123, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.14.71, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.18.9, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.4.157, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.9.128, so it looks safe — our inference, not a vendor statement

References (16)

VDB Entryx_refsource_BIDThird Party Advisory
http://www.securityfocus.com/bid/105417
VDB Entryx_refsource_BIDThird Party Advisory
http://www.securityfocus.com/bid/106503
VDB Entryx_refsource_SECTRACKPatchThird Party Advisory
http://www.securitytracker.com/id/1041748
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2018:3656
Mailing Listx_refsource_MLISTThird Party Advisory
https://lists.debian.org/debian-lts-announce/2018/10/msg00003.html
x_refsource_CONFIRMPatchThird Party Advisory
https://security.netapp.com/advisory/ntap-20190204-0001/

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-416

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