CVE-2017-18075

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.

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.08%
Vendor Advisory ubuntu.com Vendor Advisory redhat.com Vendor Advisory ubuntu.com Vendor Advisory kernel.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/102813 vdb entry third party advisory
https://usn.ubuntu.com/3619-2/ third party advisory vendor advisory
https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.13 issue tracking release notes vendor advisory
https://access.redhat.com/errata/RHSA-2018:2948 third party advisory 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 third party advisory patch
https://usn.ubuntu.com/3619-1/ third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2017-18075?
CVE-2017-18075 has been scored as a high severity vulnerability.
How to fix CVE-2017-18075?
To fix CVE-2017-18075, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-18075 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2017-18075 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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