CVE-2017-18075
Highcrypto/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 3.1 score
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness type
CWE-763CVE-2017-18075 is a Release of Invalid Pointer or Reference vulnerability
What is Release of Invalid Pointer or Reference?
The product attempts to return a memory resource to the system but calls the wrong release function. Learn more on MITRE CWE
References
The following references provide additional information about CVE-2017-18075 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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Securityfocushttp://www.securityfocus.com/bid/102813Third Party Advisory VDB Entry
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Third Party Advisory
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Ubuntu Securityhttps://usn.ubuntu.com/3619-1/Third Party Advisory
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Ubuntu Securityhttps://usn.ubuntu.com/3619-2/Third Party Advisory
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Issue Tracking Release Notes Vendor Advisory
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PatchKernel patch commithttp://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d76c68109f37cb85b243a1cf0f40313afd2bae68
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PatchKernel patch commithttps://github.com/torvalds/linux/commit/d76c68109f37cb85b243a1cf0f40313afd2bae68
Frequently asked questions
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What is CVE-2017-18075?
CVE-2017-18075 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 , classified as a Release of Invalid Pointer or Reference flaw (CWE-763) . CVE-2017-18075 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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What is the CVSS score for CVE-2017-18075?
CVE-2017-18075 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. -
Is there a patch available for CVE-2017-18075?
No patch is currently available for CVE-2017-18075. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
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Is CVE-2017-18075 actively exploited?
No — CVE-2017-18075 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
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What is Release of Invalid Pointer or Reference (CWE-763)?
The product attempts to return a memory resource to the system but calls the wrong release function. View CWE-763 on MITRE CWE →