cve.bz

CVE-2018-6551

9.8 criticalEPSS 2.2%

Critical (9.8) in gnu glibc. EPSS 2.2% chance of exploitation in the next 30 days.

The malloc implementation in the GNU C Library (aka glibc or libc6), from version 2.24 to 2.26 on powerpc, and only in version 2.26 on i386, did not properly handle malloc calls with arguments close to SIZE_MAX and could return a pointer to a heap region that is smaller than requested, eventually leading to heap corruption.

Severity

CVSS 3.0

9.8 critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
2.2% chance of exploitation in the next 30 days; higher than 82% of CVEs (scores of 2026-10-31)
CWEs
CWE-190, CWE-787
Published
Modified
Record from
the NVD, synced

Affected

References

Check your stackJSON