CVE-2018-20961

In the Linux kernel before 4.16.4, a double free vulnerability in the f_midi_set_alt function of drivers/usb/gadget/function/f_midi.c in the f_midi driver may allow attackers to cause a denial of service or possibly have unspecified other impact.

CVSS v3.0 9.8 CRITICAL
CVSS v2.0 10.0 HIGH

9.8^/10

CVSS v3.0 : CRITICAL

V3 Legend

Vector :

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

10.0^/10

CVSS v2.0 : HIGH

V2 Legend

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

Exploitability : 10.0 / Impact : 10.0

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.16.4	Release Notes Vendor Advisory
https://github.com/torvalds/linux/commit/7fafcfdf6377b18b2a726ea554d6e593ba44349f	Patch Third Party Advisory
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7fafcfdf6377b18b2a726ea554d6e593ba44349f	Exploit Mailing List Vendor Advisory
https://seclists.org/bugtraq/2019/Aug/48	Mailing List Third Party Advisory
http://packetstormsecurity.com/files/154228/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html	Third Party Advisory VDB Entry
https://support.f5.com/csp/article/K58502654	Third Party Advisory
https://security.netapp.com/advisory/ntap-20190905-0002/	Third Party Advisory
https://usn.ubuntu.com/4145-1/	Third Party Advisory
https://support.f5.com/csp/article/K58502654?utm_source=f5support&utm_medium=RSS	Third Party Advisory
http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html	Third Party Advisory VDB Entry

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

Information

Published : 2019-08-07 08:15

Updated : 2023-01-19 08:14

NVD link : CVE-2018-20961

Mitre link : CVE-2018-20961

JSON object : View

CWE

CWE-415

Double Free

Products Affected

linux

linux_kernel

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.16.4", "name": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.16.4", "tags": ["Release Notes", "Vendor Advisory"], "refsource": "MISC"}, {"url": "https://github.com/torvalds/linux/commit/7fafcfdf6377b18b2a726ea554d6e593ba44349f", "name": "https://github.com/torvalds/linux/commit/7fafcfdf6377b18b2a726ea554d6e593ba44349f", "tags": ["Patch", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7fafcfdf6377b18b2a726ea554d6e593ba44349f", "name": "https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7fafcfdf6377b18b2a726ea554d6e593ba44349f", "tags": ["Exploit", "Mailing List", "Vendor Advisory"], "refsource": "MISC"}, {"url": "https://seclists.org/bugtraq/2019/Aug/48", "name": "20190826 [slackware-security] Slackware 14.2 kernel (SSA:2019-238-01)", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "BUGTRAQ"}, {"url": "http://packetstormsecurity.com/files/154228/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html", "name": "http://packetstormsecurity.com/files/154228/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html", "tags": ["Third Party Advisory", "VDB Entry"], "refsource": "MISC"}, {"url": "https://support.f5.com/csp/article/K58502654", "name": "https://support.f5.com/csp/article/K58502654", "tags": ["Third Party Advisory"], "refsource": "CONFIRM"}, {"url": "https://security.netapp.com/advisory/ntap-20190905-0002/", "name": "https://security.netapp.com/advisory/ntap-20190905-0002/", "tags": ["Third Party Advisory"], "refsource": "CONFIRM"}, {"url": "https://usn.ubuntu.com/4145-1/", "name": "USN-4145-1", "tags": ["Third Party Advisory"], "refsource": "UBUNTU"}, {"url": "https://support.f5.com/csp/article/K58502654?utm_source=f5support&utm_medium=RSS", "name": "https://support.f5.com/csp/article/K58502654?utm_source=f5support&utm_medium=RSS", "tags": ["Third Party Advisory"], "refsource": "CONFIRM"}, {"url": "http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html", "name": "http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html", "tags": ["Third Party Advisory", "VDB Entry"], "refsource": "MISC"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "In the Linux kernel before 4.16.4, a double free vulnerability in the f_midi_set_alt function of drivers/usb/gadget/function/f_midi.c in the f_midi driver may allow attackers to cause a denial of service or possibly have unspecified other impact."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-415"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2018-20961", "ASSIGNER": "cve@mitre.org"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 10.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C", "authentication": "NONE", "integrityImpact": "COMPLETE", "accessComplexity": "LOW", "availabilityImpact": "COMPLETE", "confidentialityImpact": "COMPLETE"}, "severity": "HIGH", "acInsufInfo": false, "impactScore": 10.0, "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/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": "2019-08-07T15:15Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "4.4.190", "versionStartIncluding": "4.4"}, {"cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "4.9.96", "versionStartIncluding": "4.5"}, {"cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "4.14.36", "versionStartIncluding": "4.10"}, {"cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "4.16.4", "versionStartIncluding": "4.15.0"}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2023-01-19T16:14Z"}

9.8 /10