CVSS 3.1
7.8 highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HCVE-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.
Severity
- EPSS
- 0.4% chance of exploitation in the next 30 days; higher than 36% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-20, CWE-416
- Published
- Modified
- Record from
- the NVD, synced
Affected
- linux:linux_kernel
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