CVE-2016-4794

Use-after-free vulnerability in mm/percpu.c in the Linux kernel through 4.6 allows local users to cause a denial of service (BUG) or possibly have unspecified other impact via crafted use of the mmap and bpf system calls.

CVSS v3.0 7.8 HIGH
CVSS v2.0 7.2 HIGH

7.8^/10

CVSS v3.0 : HIGH

Vector :

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

7.2^/10

CVSS v2.0 : HIGH

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

Exploitability : 3.9 / Impact : 10.0

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
http://www.openwall.com/lists/oss-security/2016/05/12/6	Exploit Mailing List Third Party Advisory
https://lkml.org/lkml/2016/4/17/125	Exploit Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1335889	VDB Entry Issue Tracking Third Party Advisory
http://www.ubuntu.com/usn/USN-3057-1	Third Party Advisory
http://www.ubuntu.com/usn/USN-3053-1	Third Party Advisory
http://www.ubuntu.com/usn/USN-3056-1	Third Party Advisory
http://www.ubuntu.com/usn/USN-3054-1	Third Party Advisory
http://www.ubuntu.com/usn/USN-3055-1	Third Party Advisory
http://www.securityfocus.com/bid/90625	Third Party Advisory VDB Entry
https://source.android.com/security/bulletin/2016-12-01.html	Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-2584.html	Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-2574.html	Third Party Advisory

Advertisement

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::::::::

Configuration 2 (hide)

OR	cpe:2.3:o:canonical:ubuntu_linux:16.04::::lts:::
	cpe:2.3:o:canonical:ubuntu_linux:14.04::::lts:::

Information

Published : 2016-05-23 03:59

Updated : 2023-02-15 18:32

NVD link : CVE-2016-4794

Mitre link : CVE-2016-4794

JSON object : View

CWE

NVD-CWE-Other

Advertisement

Products Affected

canonical

ubuntu_linux

linux

linux_kernel

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "http://www.openwall.com/lists/oss-security/2016/05/12/6", "name": "[oss-security] 20160512 Linux Kernel bpf related UAF", "tags": ["Exploit", "Mailing List", "Third Party Advisory"], "refsource": "MLIST"}, {"url": "https://lkml.org/lkml/2016/4/17/125", "name": "[linux-kernel] 20160417 Re: bpf: use-after-free in array_map_alloc", "tags": ["Exploit", "Third Party Advisory"], "refsource": "MLIST"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1335889", "name": "https://bugzilla.redhat.com/show_bug.cgi?id=1335889", "tags": ["VDB Entry", "Issue Tracking", "Third Party Advisory"], "refsource": "CONFIRM"}, {"url": "http://www.ubuntu.com/usn/USN-3057-1", "name": "USN-3057-1", "tags": ["Third Party Advisory"], "refsource": "UBUNTU"}, {"url": "http://www.ubuntu.com/usn/USN-3053-1", "name": "USN-3053-1", "tags": ["Third Party Advisory"], "refsource": "UBUNTU"}, {"url": "http://www.ubuntu.com/usn/USN-3056-1", "name": "USN-3056-1", "tags": ["Third Party Advisory"], "refsource": "UBUNTU"}, {"url": "http://www.ubuntu.com/usn/USN-3054-1", "name": "USN-3054-1", "tags": ["Third Party Advisory"], "refsource": "UBUNTU"}, {"url": "http://www.ubuntu.com/usn/USN-3055-1", "name": "USN-3055-1", "tags": ["Third Party Advisory"], "refsource": "UBUNTU"}, {"url": "http://www.securityfocus.com/bid/90625", "name": "90625", "tags": ["Third Party Advisory", "VDB Entry"], "refsource": "BID"}, {"url": "https://source.android.com/security/bulletin/2016-12-01.html", "name": "https://source.android.com/security/bulletin/2016-12-01.html", "tags": ["Third Party Advisory"], "refsource": "CONFIRM"}, {"url": "http://rhn.redhat.com/errata/RHSA-2016-2584.html", "name": "RHSA-2016:2584", "tags": ["Third Party Advisory"], "refsource": "REDHAT"}, {"url": "http://rhn.redhat.com/errata/RHSA-2016-2574.html", "name": "RHSA-2016:2574", "tags": ["Third Party Advisory"], "refsource": "REDHAT"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "Use-after-free vulnerability in mm/percpu.c in the Linux kernel through 4.6 allows local users to cause a denial of service (BUG) or possibly have unspecified other impact via crafted use of the mmap and bpf system calls."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "NVD-CWE-Other"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2016-4794", "ASSIGNER": "cve@mitre.org"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 7.2, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "authentication": "NONE", "integrityImpact": "COMPLETE", "accessComplexity": "LOW", "availabilityImpact": "COMPLETE", "confidentialityImpact": "COMPLETE"}, "severity": "HIGH", "impactScore": 10.0, "obtainAllPrivilege": false, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/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": "2016-05-23T10:59Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "4.1.28", "versionStartIncluding": "3.19"}, {"cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "3.18.37", "versionStartIncluding": "3.18"}, {"cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "4.4.16", "versionStartIncluding": "4.2"}, {"cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "4.6.5", "versionStartIncluding": "4.5"}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*", "cpe_name": [], "vulnerable": true}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2023-02-16T02:32Z"}