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 buffer overflow and, potentially, arbitrary code execution.

CVSS v3.0 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3.0 : CRITICAL

V3 Legend

Vector : AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

V2 Legend

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

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

Configurations

Configuration 1 (hide)

cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux_server:7.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:::::::*
	cpe:2.3:a:redhat:virtualization_host:4.0:::::::*

Configuration 3 (hide)

OR	cpe:2.3:a:oracle:enterprise_communications_broker:3.1.0:::::::*
	cpe:2.3:a:oracle:communications_session_border_controller:8.2.0:::::::*
	cpe:2.3:a:oracle:enterprise_communications_broker:3.0.0:::::::*
	cpe:2.3:a:oracle:communications_session_border_controller:8.1.0:::::::*
	cpe:2.3:a:oracle:communications_session_border_controller:8.0.0:::::::*

Configuration 4 (hide)

OR	cpe:2.3:a:netapp:element_software_management:-:::::::*
	cpe:2.3:a:netapp:data_ontap_edge:-:::::::*

Information

Published : 2018-05-18 09:29

Updated : 2020-08-24 10:37

NVD link : CVE-2018-11236

Mitre link : CVE-2018-11236

JSON object : View

CWE

CWE-787

Out-of-bounds Write

CWE-190

Integer Overflow or Wraparound

Products Affected

redhat

enterprise_linux_desktop
enterprise_linux_workstation
virtualization_host
enterprise_linux_server

oracle

enterprise_communications_broker
communications_session_border_controller

netapp

data_ontap_edge
element_software_management

gnu

glibc

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=5460617d1567657621107d895ee2dd83bc1f88f2", "name": "https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=5460617d1567657621107d895ee2dd83bc1f88f2", "tags": ["Patch", "Release Notes", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://sourceware.org/bugzilla/show_bug.cgi?id=22786", "name": "https://sourceware.org/bugzilla/show_bug.cgi?id=22786", "tags": ["Issue Tracking", "Third Party Advisory"], "refsource": "MISC"}, {"url": "http://www.securityfocus.com/bid/104255", "name": "104255", "tags": ["Third Party Advisory", "VDB Entry"], "refsource": "BID"}, {"url": "https://access.redhat.com/errata/RHSA-2018:3092", "name": "RHSA-2018:3092", "tags": ["Patch", "Third Party Advisory"], "refsource": "REDHAT"}, {"url": "https://security.netapp.com/advisory/ntap-20190401-0001/", "name": "https://security.netapp.com/advisory/ntap-20190401-0001/", "tags": ["Third Party Advisory"], "refsource": "CONFIRM"}, {"url": "https://security.netapp.com/advisory/ntap-20190329-0001/", "name": "https://security.netapp.com/advisory/ntap-20190329-0001/", "tags": ["Broken Link"], "refsource": "CONFIRM"}, {"url": "https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html", "name": "https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html", "tags": ["Patch", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://access.redhat.com/errata/RHBA-2019:0327", "name": "RHBA-2019:0327", "tags": ["Third Party Advisory"], "refsource": "REDHAT"}, {"url": "https://usn.ubuntu.com/4416-1/", "name": "USN-4416-1", "tags": [], "refsource": "UBUNTU"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "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."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-787"}, {"lang": "en", "value": "CWE-190"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2018-11236", "ASSIGNER": "cve@mitre.org"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 7.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "severity": "HIGH", "acInsufInfo": false, "impactScore": 6.4, "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}}, "publishedDate": "2018-05-18T16:29Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndIncluding": "2.27"}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:a:redhat:virtualization_host:4.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:oracle:enterprise_communications_broker:3.1.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:a:oracle:communications_session_border_controller:8.2.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:a:oracle:enterprise_communications_broker:3.0.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:a:oracle:communications_session_border_controller:8.1.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:a:oracle:communications_session_border_controller:8.0.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:netapp:element_software_management:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:a:netapp:data_ontap_edge:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2020-08-24T17:37Z"}

9.8 /10