CVE-2018-14612

An issue was discovered in the Linux kernel through 4.17.10. There is an invalid pointer dereference in btrfs_root_node() when mounting a crafted btrfs image, because of a lack of chunk block group mapping validation in btrfs_read_block_groups in fs/btrfs/extent-tree.c, and a lack of empty-tree checks in check_leaf in fs/btrfs/tree-checker.c.

CVSS v3.0 5.5 MEDIUM
CVSS v2.0 7.1 HIGH

5.5^/10

CVSS v3.0 : MEDIUM

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

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

7.1^/10

CVSS v2.0 : HIGH

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

Exploitability : 8.6 / Impact : 6.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

References

Link	Resource
https://patchwork.kernel.org/patch/10503413/	Patch Third Party Advisory
https://patchwork.kernel.org/patch/10503403/	Patch Third Party Advisory
https://bugzilla.kernel.org/show_bug.cgi?id=199847	Exploit Issue Tracking Third Party Advisory
http://www.securityfocus.com/bid/104917	Third Party Advisory VDB Entry
https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html
https://usn.ubuntu.com/3932-2/
https://usn.ubuntu.com/3932-1/
https://usn.ubuntu.com/4094-1/
https://usn.ubuntu.com/4118-1/
https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html
https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html

Advertisement

Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Information

Published : 2018-07-26 21:29

Updated : 2020-06-10 06:15

NVD link : CVE-2018-14612

Mitre link : CVE-2018-14612

JSON object : View

CWE

CWE-476

NULL Pointer Dereference

Advertisement

Products Affected

linux

linux_kernel

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://patchwork.kernel.org/patch/10503413/", "name": "https://patchwork.kernel.org/patch/10503413/", "tags": ["Patch", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://patchwork.kernel.org/patch/10503403/", "name": "https://patchwork.kernel.org/patch/10503403/", "tags": ["Patch", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://bugzilla.kernel.org/show_bug.cgi?id=199847", "name": "https://bugzilla.kernel.org/show_bug.cgi?id=199847", "tags": ["Exploit", "Issue Tracking", "Third Party Advisory"], "refsource": "MISC"}, {"url": "http://www.securityfocus.com/bid/104917", "name": "104917", "tags": ["Third Party Advisory", "VDB Entry"], "refsource": "BID"}, {"url": "https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html", "name": "[debian-lts-announce] 20190315 [SECURITY] [DLA 1715-1] linux-4.9 security update", "tags": [], "refsource": "MLIST"}, {"url": "https://usn.ubuntu.com/3932-2/", "name": "USN-3932-2", "tags": [], "refsource": "UBUNTU"}, {"url": "https://usn.ubuntu.com/3932-1/", "name": "USN-3932-1", "tags": [], "refsource": "UBUNTU"}, {"url": "https://usn.ubuntu.com/4094-1/", "name": "USN-4094-1", "tags": [], "refsource": "UBUNTU"}, {"url": "https://usn.ubuntu.com/4118-1/", "name": "USN-4118-1", "tags": [], "refsource": "UBUNTU"}, {"url": "https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html", "name": "[debian-lts-announce] 20200609 [SECURITY] [DLA 2241-1] linux security update", "tags": [], "refsource": "MLIST"}, {"url": "https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html", "name": "[debian-lts-announce] 20200610 [SECURITY] [DLA 2241-2] linux security update", "tags": [], "refsource": "MLIST"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "An issue was discovered in the Linux kernel through 4.17.10. There is an invalid pointer dereference in btrfs_root_node() when mounting a crafted btrfs image, because of a lack of chunk block group mapping validation in btrfs_read_block_groups in fs/btrfs/extent-tree.c, and a lack of empty-tree checks in check_leaf in fs/btrfs/tree-checker.c."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-476"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2018-14612", "ASSIGNER": "cve@mitre.org"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 7.1, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:C", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "MEDIUM", "availabilityImpact": "COMPLETE", "confidentialityImpact": "NONE"}, "severity": "HIGH", "impactScore": 6.9, "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}}, "publishedDate": "2018-07-27T04:29Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndIncluding": "4.17.10"}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2020-06-10T13:15Z"}