Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| [UNKNOWN] / kernel | affected kernel-4.15-rc4 |
CWE
CWE-416
References
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b32a7dc8aef1882fbf983eb354837488cc9d54dc
- https://access.redhat.com/errata/RHSA-2018:2948
- https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2018-0013
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14619
- http://www.securityfocus.com/bid/105200
ADP enrichment
No English description supplied.
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b32a7dc8aef1882fbf983eb354837488cc9d54dc
- https://access.redhat.com/errata/RHSA-2018:2948
- https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2018-0013
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14619
- http://www.securityfocus.com/bid/105200