Vulnerability Details CVE-2018-14619
A flaw was found in the crypto subsystem of the Linux kernel before version kernel-4.15-rc4. The "null skcipher" was being dropped when each af_alg_ctx was freed instead of when the aead_tfm was freed. This can cause the null skcipher to be freed while it is still in use leading to a local user being able to crash the system or possibly escalate privileges.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 31.5%
CVSS Severity
CVSS v3 Score 6.2
CVSS v2 Score 7.2
References
- http://www.securityfocus.com/bid/105200
- https://access.redhat.com/errata/RHSA-2018:2948
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14619
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b32a7dc8aef1882fbf983eb354837488cc9d54dc
- https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2018-0013
- http://www.securityfocus.com/bid/105200
- https://access.redhat.com/errata/RHSA-2018:2948
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14619
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b32a7dc8aef1882fbf983eb354837488cc9d54dc
- https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2018-0013
Products affected by CVE-2018-14619
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cpe:2.3:o:linux:linux_kernel:4.14
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cpe:2.3:o:linux:linux_kernel:4.14.1
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cpe:2.3:o:linux:linux_kernel:4.14.2
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cpe:2.3:o:linux:linux_kernel:4.14.3
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cpe:2.3:o:linux:linux_kernel:4.14.4
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cpe:2.3:o:linux:linux_kernel:4.14.5
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cpe:2.3:o:linux:linux_kernel:4.14.6
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cpe:2.3:o:linux:linux_kernel:4.14.7
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cpe:2.3:o:linux:linux_kernel:4.15