CVE-2017-17426

glibc: Integer overflow with enabled tcache

Published Dec 5, 2017 CVSS 3.0 · 8.1 High EPSS 1.6% KEV · Not listed
Description
The malloc function in the GNU C Library (aka glibc or libc6) 2.26 could return a memory block that is too small if an attempt is made to allocate an object whose size is close to SIZE_MAX, potentially leading to a subsequent heap overflow. This occurs because the per-thread cache (aka tcache) feature enables a code path that lacks an integer overflow check.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
EUVD EUVD EUVD-2017-8591 The malloc function in the GNU C Library (aka glibc or libc6) 2.26 could return a memory block that is too small if an attempt is made to allocate an object whose size is close to SIZE_MAX, potentially leading to a subsequent heap overflow. This occurs because the per-thread cache (aka tcache) feature enables a code path that lacks an integer overflow check.
Ubuntu USN Ubuntu USN USN-3534-1 GNU C Library vulnerabilities
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Sep 16, 2024, 4:32 PM
Reserved
Dec 5, 2017, 12:00 AM
Status
Modified
Published
Dec 5, 2017, 5:29 PM
Modified
Jun 17, 2026, 1:10 AM
Severity
Moderate
Public date
Oct 31, 2017, 12:00 AM