6.8
CVSSv2

CVE-2017-17426

Published: 05/12/2017 Updated: 07/11/2023
CVSS v2 Base Score: 6.8 | Impact Score: 6.4 | Exploitability Score: 8.6
CVSS v3 Base Score: 8.1 | Impact Score: 5.9 | Exploitability Score: 2.2
VMScore: 605
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

Vulnerability Summary

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.

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gnu glibc 2.26

Vendor Advisories

Several security issues were fixed in the GNU C library ...
The malloc function in the GNU C Library (aka glibc or libc6) 226 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 overf ...