CVE-2017-18075

crypto/pcrypt.c in the Linux kernel before 4.14.13 mishandles freeing instances, allowing a local user able to access the AF_ALG-based AEAD interface (CONFIG_CRYPTO_USER_API_AEAD) and pcrypt (CONFIG_CRYPTO_PCRYPT) to cause a denial of service (kfree of an incorrect pointer) or possibly have unspecified other impact by executing a crafted sequence of 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
https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.13	Issue Tracking Release Notes Vendor Advisory
https://github.com/torvalds/linux/commit/d76c68109f37cb85b243a1cf0f40313afd2bae68	Patch
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d76c68109f37cb85b243a1cf0f40313afd2bae68	Issue Tracking Patch Third Party Advisory
http://www.securityfocus.com/bid/102813	Third Party Advisory VDB Entry
https://usn.ubuntu.com/3619-1/	Third Party Advisory
https://usn.ubuntu.com/3619-2/	Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2948	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::::::::

Configuration 2 (hide)

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

Information

Published : 2018-01-24 02:29

Updated : 2023-02-07 14:17

NVD link : CVE-2017-18075

Mitre link : CVE-2017-18075

JSON object : View

CWE

CWE-763

Release of Invalid Pointer or Reference

Advertisement

Products Affected

canonical

ubuntu_linux

linux

linux_kernel

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.13", "name": "https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.13", "tags": ["Issue Tracking", "Release Notes", "Vendor Advisory"], "refsource": "CONFIRM"}, {"url": "https://github.com/torvalds/linux/commit/d76c68109f37cb85b243a1cf0f40313afd2bae68", "name": "https://github.com/torvalds/linux/commit/d76c68109f37cb85b243a1cf0f40313afd2bae68", "tags": ["Patch"], "refsource": "CONFIRM"}, {"url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d76c68109f37cb85b243a1cf0f40313afd2bae68", "name": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d76c68109f37cb85b243a1cf0f40313afd2bae68", "tags": ["Issue Tracking", "Patch", "Third Party Advisory"], "refsource": "CONFIRM"}, {"url": "http://www.securityfocus.com/bid/102813", "name": "102813", "tags": ["Third Party Advisory", "VDB Entry"], "refsource": "BID"}, {"url": "https://usn.ubuntu.com/3619-1/", "name": "USN-3619-1", "tags": ["Third Party Advisory"], "refsource": "UBUNTU"}, {"url": "https://usn.ubuntu.com/3619-2/", "name": "USN-3619-2", "tags": ["Third Party Advisory"], "refsource": "UBUNTU"}, {"url": "https://access.redhat.com/errata/RHSA-2018:2948", "name": "RHSA-2018:2948", "tags": ["Third Party Advisory"], "refsource": "REDHAT"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "crypto/pcrypt.c in the Linux kernel before 4.14.13 mishandles freeing instances, allowing a local user able to access the AF_ALG-based AEAD interface (CONFIG_CRYPTO_USER_API_AEAD) and pcrypt (CONFIG_CRYPTO_PCRYPT) to cause a denial of service (kfree of an incorrect pointer) or possibly have unspecified other impact by executing a crafted sequence of system calls."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-763"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2017-18075", "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": "2018-01-24T10:29Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "4.4.111", "versionStartIncluding": "4.2"}, {"cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "4.9.76", "versionStartIncluding": "4.5"}, {"cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "4.14.13", "versionStartIncluding": "4.10"}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*", "cpe_name": [], "vulnerable": true}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2023-02-07T22:17Z"}