CVE-2018-11236

Name: CVE-2018-11236
Creator: NVD / NIST
Published: 2018-05-18T16:29:00.353+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 7.40%

Last modified Jun 17, 2026

CVE-2018-11236 is a vulnerability of currently unknown severity. stdlib/canonicalize.c in the GNU C Library (aka glibc or libc6) 2.27 and earlier, when processing very long pathname arguments to the realpath function, could encounter an integer overflow on 32-bit architectures, leading to a stack-based buffer overflow and, potentially, arbitrary code execution.. EPSS estimates a 7.40% chance of exploitation in the next 30 days.

Description

stdlib/canonicalize.c in the GNU C Library (aka glibc or libc6) 2.27 and earlier, when processing very long pathname arguments to the realpath function, could encounter an integer overflow on 32-bit architectures, leading to a stack-based buffer overflow and, potentially, arbitrary code execution.

Metrics

EPSS Probability

7.40%

93.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Gnu	Glibc	<= 2.27
Redhat	Virtualization Host	4.0
Redhat	Enterprise Linux Desktop	7.0
Redhat	Enterprise Linux Server	7.0
Redhat	Enterprise Linux Workstation	7.0
Oracle	Communications Session Border Controller	8.0.0
Oracle	Communications Session Border Controller	8.1.0
Oracle	Communications Session Border Controller	8.2.0
Oracle	Enterprise Communications Broker	3.0.0
Oracle	Enterprise Communications Broker	3.1.0
Netapp	Data Ontap Edge	All versions
Netapp	Element Software Management	All versions

References

http://www.securityfocus.com/bid/104255Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHBA-2019:0327Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3092Patch, Third Party Advisory
https://security.netapp.com/advisory/ntap-20190329-0001/Broken Link
https://security.netapp.com/advisory/ntap-20190401-0001/Third Party Advisory
https://sourceware.org/bugzilla/show_bug.cgi?id=22786Issue Tracking, Third Party Advisory
https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=5460617d1567657621107d895ee2dd83bc1f88f2
https://usn.ubuntu.com/4416-1/
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.htmlPatch, Third Party Advisory
http://www.securityfocus.com/bid/104255Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHBA-2019:0327Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3092Patch, Third Party Advisory
https://security.netapp.com/advisory/ntap-20190329-0001/Broken Link
https://security.netapp.com/advisory/ntap-20190401-0001/Third Party Advisory
https://sourceware.org/bugzilla/show_bug.cgi?id=22786Issue Tracking, Third Party Advisory
https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=5460617d1567657621107d895ee2dd83bc1f88f2
https://usn.ubuntu.com/4416-1/
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.htmlPatch, Third Party Advisory

Timeline

Published: May 18, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-11236?

How severe is CVE-2018-11236?

Severity scoring for CVE-2018-11236 is pending analysis. The EPSS model estimates a 7.40% probability of exploitation in the next 30 days.

How do I fix CVE-2018-11236?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-11236?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST