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Vulnerability record · CVE-2018-6485 · published 1 February 2018

CVE-2018-6485: Gnu glibc integer overflow vulnerability

Gnu · Glibc

An integer overflow in the implementation of the posix_memalign in memalign functions in the GNU C Library (aka glibc or libc6) 2.26 and earlier could cause these functions to return a pointer to a heap area that is too small, potentially leading to heap corruption.

9.8 CVSS 3.0 Critical EPSS 4.7% · top 8.5% CWE-190 · Integer overflowCWE-787 · Out-of-bounds write
9.8CVSS 3.0 base score, v2 7.5
4.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
15Affected product versions listed by NVD
18References
17 Jun 2026Last modified by NVD

Description

An integer overflow in the implementation of the posix_memalign in memalign functions in the GNU C Library (aka glibc or libc6) 2.26 and earlier could cause these functions to return a pointer to a heap area that is too small, potentially leading to heap corruption.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

15 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://bugs.debian.org/878159 Issue TrackingMailing ListThird Party Advisory
http://www.securityfocus.com/bid/102912 Third Party AdvisoryVDB Entry
https://access.redhat.com/errata/RHBA-2019:0327 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3092 PatchThird Party Advisory
https://security.netapp.com/advisory/ntap-20190404-0003/ Third Party Advisory
https://sourceware.org/bugzilla/show_bug.cgi?id=22343 Issue TrackingThird Party Advisory
https://usn.ubuntu.com/4218-1/
https://usn.ubuntu.com/4416-1/
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html PatchThird Party Advisory
http://bugs.debian.org/878159 Issue TrackingMailing ListThird Party Advisory
http://www.securityfocus.com/bid/102912 Third Party AdvisoryVDB Entry
https://access.redhat.com/errata/RHBA-2019:0327 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3092 PatchThird Party Advisory
https://security.netapp.com/advisory/ntap-20190404-0003/ Third Party Advisory
https://sourceware.org/bugzilla/show_bug.cgi?id=22343 Issue TrackingThird Party Advisory
https://usn.ubuntu.com/4218-1/
https://usn.ubuntu.com/4416-1/
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html PatchThird Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2018-6485), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.