CVE-2018-6551

Impact:
Moderate
Public Date:
2018-02-02
CWE:
CWE-190
Bugzilla:
1542119: CVE-2018-6551 glibc: integer overflow in malloc functions

The MITRE CVE dictionary describes this issue as:

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.

Find out more about CVE-2018-6551 from the MITRE CVE dictionary dictionary and NIST NVD.

Statement

This issue did not affect the versions of glibc and compat-glibc as shipped with Red Hat Enterprise Linux 5, 6, and 7.

CVSS v3 metrics

NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.

CVSS3 Base Score 5.3
CVSS3 Base Metrics CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity Impact Low
Availability Impact Low

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 8 glibc Not affected
Red Hat Enterprise Linux 7 glibc Not affected
Red Hat Enterprise Linux 7 compat-glibc Not affected
Red Hat Enterprise Linux 6 glibc Not affected
Red Hat Enterprise Linux 6 compat-glibc Not affected
Red Hat Enterprise Linux 5 compat-glibc Not affected
Red Hat Enterprise Linux 5 glibc Not affected
Last Modified

CVE description copyright © 2017, The MITRE Corporation