Buffer overflow in Gnu Glibc
CVE-2018-11236
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…
Vulnerability class: Integer Overflow
EPSS: 0.074 (93.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Gnu Glibc
- Netapp Data_ontap_edge
- Netapp Element_software_management
- Oracle Communications_session_border_controller — versions 8.0.0, 8.1.0, 8.2.0
- Oracle Enterprise_communications_broker — versions 3.0.0, 3.1.0
- Redhat Enterprise_linux_desktop — versions 7.0
- Redhat Enterprise_linux_server — versions 7.0
- Redhat Enterprise_linux_workstation — versions 7.0
- Redhat Virtualization_host — versions 4.0
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (x_refsource_MISC)
- cve@mitre.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- cve@mitre.org (Third Party Advisory, x_refsource_MISC, Issue Tracking)
- cve@mitre.org (x_refsource_REDHAT, vendor-advisory, Patch, Third Party Advisory)
- cve@mitre.org (x_refsource_CONFIRM, Broken Link)
- cve@mitre.org (x_refsource_CONFIRM, Third Party Advisory)
- cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- cve@mitre.org (x_refsource_UBUNTU, vendor-advisory)
Frequently asked questions
- What is CVE-2018-11236?
- CVE-2018-11236 is a critical-severity vulnerability in Gnu Glibc, classified under Integer Overflow or Wraparound. CVSS score: 9.8/10. Published 2018-05-18.
- How severe is CVE-2018-11236?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2018-11236 known to be exploited?
- 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.