CVE & CISA-KEV Catalog

CVE-2017-18075

HIGH
7.8
CVSS v3
NVD

Description

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.

CWE-763

How to fix

Remediation Available
linuxDebian
Fixed in:4.14.13-1CVE-2017-18075
Fixed in:4.14.13-1CVE-2017-18075
Fixed in:4.14.13-1CVE-2017-18075
Fixed in:4.14.13-1CVE-2017-18075
linuxUbuntu
Fixed in:4.4.0-119.143USN-3619-1
linux-awsUbuntu
Fixed in:4.4.0-1016.16USN-3619-2
Fixed in:4.4.0-1054.63USN-3619-1
linux-image-4.4.0-1016-awsUbuntu
Fixed in:4.4.0-1016.16USN-3619-2
linux-image-4.4.0-1020-kvmUbuntu
Fixed in:4.4.0-1020.25USN-3619-1
linux-image-4.4.0-1054-awsUbuntu
Fixed in:4.4.0-1054.63USN-3619-1
linux-image-4.4.0-1086-raspi2Ubuntu
Fixed in:4.4.0-1086.94USN-3619-1
linux-image-4.4.0-1088-snapdragonUbuntu
Fixed in:4.4.0-1088.93USN-3619-1
linux-image-4.4.0-119-genericUbuntu
Fixed in:4.4.0-119.143~14.04.1USN-3619-2
Fixed in:4.4.0-119.143USN-3619-1
linux-image-4.4.0-119-generic-lpaeUbuntu
Fixed in:4.4.0-119.143~14.04.1USN-3619-2
Fixed in:4.4.0-119.143USN-3619-1
linux-image-4.4.0-119-lowlatencyUbuntu
Fixed in:4.4.0-119.143~14.04.1USN-3619-2
Fixed in:4.4.0-119.143USN-3619-1
linux-image-4.4.0-119-powerpc-e500mcUbuntu
Fixed in:4.4.0-119.143~14.04.1USN-3619-2
Fixed in:4.4.0-119.143USN-3619-1
linux-image-4.4.0-119-powerpc-smpUbuntu
Fixed in:4.4.0-119.143~14.04.1USN-3619-2
Fixed in:4.4.0-119.143USN-3619-1
linux-image-4.4.0-119-powerpc64-embUbuntu
Fixed in:4.4.0-119.143~14.04.1USN-3619-2
Fixed in:4.4.0-119.143USN-3619-1
linux-image-4.4.0-119-powerpc64-smpUbuntu
Fixed in:4.4.0-119.143~14.04.1USN-3619-2
Fixed in:4.4.0-119.143USN-3619-1
linux-kvmUbuntu
Fixed in:4.4.0-1020.25USN-3619-1
linux-lts-xenialUbuntu
Fixed in:4.4.0-119.143~14.04.1USN-3619-2
linux-raspi2Ubuntu
Fixed in:4.4.0-1086.94USN-3619-1
linux-snapdragonUbuntu
Fixed in:4.4.0-1088.93USN-3619-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

0.41%probability of exploitation in 30 days
33rdpercentile

Low risk: more likely to be exploited than 33% of all known CVEs.

References

Vendor Advisory1
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.