CVE-2018-11236

CRITICAL

glibc < 2.27 - Integer Overflow to Stack-Based Buffer Overflow in realpath

Title source: llm
STIX 2.1

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.

References (9)

Core 9
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/104255
Issue Tracking, Third Party Advisory x_refsource_misc
https://sourceware.org/bugzilla/show_bug.cgi?id=22786
Patch, Third Party Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2018:3092
Third Party Advisory x_refsource_confirm
https://security.netapp.com/advisory/ntap-20190401-0001/
Third Party Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHBA-2019:0327
Vendor Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/4416-1/

Scores

CVSS v3 9.8
EPSS 0.0089
EPSS Percentile 75.9%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-190 CWE-787
Status published
Products (12)
gnu/glibc < 2.27
netapp/data_ontap_edge
netapp/element_software_management
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
redhat/enterprise_linux_desktop 7.0
redhat/enterprise_linux_server 7.0
... and 2 more
Published May 18, 2018
Tracked Since Feb 18, 2026