CVE-2019-13164

qemu-bridge-helper.c in QEMU 3.1 and 4.0.0 does not ensure that a network interface name (obtained from bridge.conf or a --br=bridge option) is limited to the IFNAMSIZ size, which can lead to an ACL bypass.

CVSS v3.0 7.8 HIGH
CVSS v2.0 4.6 MEDIUM

7.8^/10

CVSS v3.0 : HIGH

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

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

4.6^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 3.9 / Impact : 6.4

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
http://www.openwall.com/lists/oss-security/2019/07/02/2	Mailing List Third Party Advisory
https://lists.gnu.org/archive/html/qemu-devel/2019-07/msg00145.html	Mailing List Patch Vendor Advisory
http://www.securityfocus.com/bid/109054	Third Party Advisory VDB Entry
https://seclists.org/bugtraq/2019/Aug/41
https://www.debian.org/security/2019/dsa-4506
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00000.html
https://www.debian.org/security/2019/dsa-4512
https://seclists.org/bugtraq/2019/Sep/3
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00008.html
https://lists.debian.org/debian-lts-announce/2019/09/msg00021.html
https://usn.ubuntu.com/4191-2/
https://usn.ubuntu.com/4191-1/
https://security.gentoo.org/glsa/202003-66
https://github.com/qemu/qemu/commit/03d7712b4bcd47bfe0fe14ba2fffa87e111fa086

Configurations

Configuration 1 (hide)

cpe:2.3:a:qemu:qemu:4.0.0:*:*:*:*:*:*:*

Information

Published : 2019-07-03 14:15

Updated : 2021-01-04 19:15

NVD link : CVE-2019-13164

Mitre link : CVE-2019-13164

JSON object : View

Products Affected

qemu

qemu

CWE

NVD-CWE-noinfo

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "http://www.openwall.com/lists/oss-security/2019/07/02/2", "name": "[oss-security] 20190703 CVE-2019-13164 Qemu: qemu-bridge-helper ACL bypassed with long interface names", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "MLIST"}, {"url": "https://lists.gnu.org/archive/html/qemu-devel/2019-07/msg00145.html", "name": "https://lists.gnu.org/archive/html/qemu-devel/2019-07/msg00145.html", "tags": ["Mailing List", "Patch", "Vendor Advisory"], "refsource": "MISC"}, {"url": "http://www.securityfocus.com/bid/109054", "name": "109054", "tags": ["Third Party Advisory", "VDB Entry"], "refsource": "BID"}, {"url": "https://seclists.org/bugtraq/2019/Aug/41", "name": "20190825 [SECURITY] [DSA 4506-1] qemu security update", "tags": [], "refsource": "BUGTRAQ"}, {"url": "https://www.debian.org/security/2019/dsa-4506", "name": "DSA-4506", "tags": [], "refsource": "DEBIAN"}, {"url": "http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00000.html", "name": "openSUSE-SU-2019:2041", "tags": [], "refsource": "SUSE"}, {"url": "https://www.debian.org/security/2019/dsa-4512", "name": "DSA-4512", "tags": [], "refsource": "DEBIAN"}, {"url": "https://seclists.org/bugtraq/2019/Sep/3", "name": "20190902 [SECURITY] [DSA 4512-1] qemu security update", "tags": [], "refsource": "BUGTRAQ"}, {"url": "http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00008.html", "name": "openSUSE-SU-2019:2059", "tags": [], "refsource": "SUSE"}, {"url": "https://lists.debian.org/debian-lts-announce/2019/09/msg00021.html", "name": "[debian-lts-announce] 20190920 [SECURITY] [DLA 1927-1] qemu security update", "tags": [], "refsource": "MLIST"}, {"url": "https://usn.ubuntu.com/4191-2/", "name": "USN-4191-2", "tags": [], "refsource": "UBUNTU"}, {"url": "https://usn.ubuntu.com/4191-1/", "name": "USN-4191-1", "tags": [], "refsource": "UBUNTU"}, {"url": "https://security.gentoo.org/glsa/202003-66", "name": "GLSA-202003-66", "tags": [], "refsource": "GENTOO"}, {"url": "https://github.com/qemu/qemu/commit/03d7712b4bcd47bfe0fe14ba2fffa87e111fa086", "name": "https://github.com/qemu/qemu/commit/03d7712b4bcd47bfe0fe14ba2fffa87e111fa086", "tags": [], "refsource": "MISC"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "qemu-bridge-helper.c in QEMU 3.1 and 4.0.0 does not ensure that a network interface name (obtained from bridge.conf or a --br=bridge option) is limited to the IFNAMSIZ size, which can lead to an ACL bypass."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2019-13164", "ASSIGNER": "cve@mitre.org"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 4.6, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "severity": "MEDIUM", "acInsufInfo": false, "impactScore": 6.4, "obtainAllPrivilege": false, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}}, "publishedDate": "2019-07-03T14:15Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:qemu:qemu:4.0.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2021-01-04T19:15Z"}