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Vulnerability details: VCID-ns26-fbax-x3bv
Vulnerability ID VCID-ns26-fbax-x3bv
Aliases CVE-2018-11236
Summary 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.
Status Published
Exploitability 0.5
Weighted Severity 8.8
Risk 4.4
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-787 Out-of-bounds Write
CWE-190 Integer Overflow or Wraparound
CWE-121 Stack-based Buffer Overflow
System Score Found at
cvssv3 7.8 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-11236.json
epss 0.00827 https://api.first.org/data/v1/epss?cve=CVE-2018-11236
epss 0.00827 https://api.first.org/data/v1/epss?cve=CVE-2018-11236
epss 0.00827 https://api.first.org/data/v1/epss?cve=CVE-2018-11236
epss 0.00827 https://api.first.org/data/v1/epss?cve=CVE-2018-11236
epss 0.00827 https://api.first.org/data/v1/epss?cve=CVE-2018-11236
epss 0.00827 https://api.first.org/data/v1/epss?cve=CVE-2018-11236
epss 0.00827 https://api.first.org/data/v1/epss?cve=CVE-2018-11236
epss 0.00827 https://api.first.org/data/v1/epss?cve=CVE-2018-11236
epss 0.00827 https://api.first.org/data/v1/epss?cve=CVE-2018-11236
epss 0.00827 https://api.first.org/data/v1/epss?cve=CVE-2018-11236
epss 0.00827 https://api.first.org/data/v1/epss?cve=CVE-2018-11236
epss 0.00827 https://api.first.org/data/v1/epss?cve=CVE-2018-11236
epss 0.00827 https://api.first.org/data/v1/epss?cve=CVE-2018-11236
epss 0.00827 https://api.first.org/data/v1/epss?cve=CVE-2018-11236
epss 0.00827 https://api.first.org/data/v1/epss?cve=CVE-2018-11236
epss 0.00827 https://api.first.org/data/v1/epss?cve=CVE-2018-11236
epss 0.00827 https://api.first.org/data/v1/epss?cve=CVE-2018-11236
epss 0.00827 https://api.first.org/data/v1/epss?cve=CVE-2018-11236
epss 0.00827 https://api.first.org/data/v1/epss?cve=CVE-2018-11236
epss 0.00827 https://api.first.org/data/v1/epss?cve=CVE-2018-11236
epss 0.00827 https://api.first.org/data/v1/epss?cve=CVE-2018-11236
epss 0.00827 https://api.first.org/data/v1/epss?cve=CVE-2018-11236
epss 0.00827 https://api.first.org/data/v1/epss?cve=CVE-2018-11236
epss 0.00827 https://api.first.org/data/v1/epss?cve=CVE-2018-11236
cvssv3 7.8 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 7.5 https://nvd.nist.gov/vuln/detail/CVE-2018-11236
cvssv3 9.8 https://nvd.nist.gov/vuln/detail/CVE-2018-11236
Reference id Reference type URL
https://access.redhat.com/errata/RHBA-2019:0327
https://access.redhat.com/errata/RHSA-2018:3092
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-11236.json
https://api.first.org/data/v1/epss?cve=CVE-2018-11236
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-11236
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://security.netapp.com/advisory/ntap-20190329-0001/
https://security.netapp.com/advisory/ntap-20190401-0001/
https://sourceware.org/bugzilla/show_bug.cgi?id=22786
https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=5460617d1567657621107d895ee2dd83bc1f88f2
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
http://www.securityfocus.com/bid/104255
1581269 https://bugzilla.redhat.com/show_bug.cgi?id=1581269
899071 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=899071
cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*
cpe:2.3:a:netapp:data_ontap_edge:-:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:netapp:data_ontap_edge:-:*:*:*:*:*:*:*
cpe:2.3:a:netapp:element_software_management:-:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:netapp:element_software_management:-:*:*:*:*:*:*:*
cpe:2.3:a:oracle:communications_session_border_controller:8.0.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:communications_session_border_controller:8.0.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:communications_session_border_controller:8.1.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:communications_session_border_controller:8.1.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:communications_session_border_controller:8.2.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:communications_session_border_controller:8.2.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:enterprise_communications_broker:3.0.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:enterprise_communications_broker:3.0.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:enterprise_communications_broker:3.1.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:enterprise_communications_broker:3.1.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:virtualization_host:4.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:redhat:virtualization_host:4.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
CVE-2018-11236 https://nvd.nist.gov/vuln/detail/CVE-2018-11236
USN-4416-1 https://usn.ubuntu.com/4416-1/
USN-6762-1 https://usn.ubuntu.com/6762-1/
No exploits are available.
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-11236.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2018-11236
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2018-11236
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.73565
EPSS Score 0.00827
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:34:31.649125+00:00 Ubuntu USN Importer Import https://usn.ubuntu.com/4416-1/ 37.0.0