CVE-2016-8646
Summary
| CVE | CVE-2016-8646 |
|---|---|
| State | PUBLISHED |
| Assigner | redhat |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2016-11-28 03:59:08 UTC |
| Updated | 2026-05-06 22:30:45 UTC |
| Description | The hash_accept function in crypto/algif_hash.c in the Linux kernel before 4.3.6 allows local users to cause a denial of service (OOPS) by attempting to trigger use of in-kernel hash algorithms for a socket that has received zero bytes of data. |
Risk And Classification
Primary CVSS: v3.0 5.5 MEDIUM from [email protected]
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS: 0.000340000 probability, percentile 0.100130000 (date 2026-05-10)
Problem Types: CWE-476 | n/a
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.0 | [email protected] | Primary | 5.5 | MEDIUM | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| 2.0 | [email protected] | Primary | 4.9 | AV:L/AC:L/Au:N/C:N/I:N/A:C |
CVSS v3.0 Breakdown
Attack Vector
LocalAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
NoneIntegrity
NoneAvailability
HighCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v2.0 Breakdown
Access Vector
LocalAccess Complexity
LowAuthentication
NoneConfidentiality
NoneIntegrity
NoneAvailability
CompleteAV:L/AC:L/Au:N/C:N/I:N/A:C
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Linux | Linux Kernel | All | All | All | All |
Vendor Declared Affected Products
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.3.6 | af854a3a-2127-422b-91ae-364da2661108 | www.kernel.org | Release Notes |
| Red Hat Customer Portal | af854a3a-2127-422b-91ae-364da2661108 | access.redhat.com | |
| oss-security - CVE-2016-8646: linux kernel - oops in shash_async_export() | af854a3a-2127-422b-91ae-364da2661108 | www.openwall.com | Mailing List, Third Party Advisory |
| Red Hat Customer Portal | af854a3a-2127-422b-91ae-364da2661108 | access.redhat.com | |
| Bug 1388821 – CVE-2016-8646 kernel: Oops in shash_async_export() | af854a3a-2127-422b-91ae-364da2661108 | bugzilla.redhat.com | Issue Tracking |
| crypto: algif_hash - Only export and import on sockets with data · torvalds/linux@4afa5f9 · GitHub | af854a3a-2127-422b-91ae-364da2661108 | github.com | Issue Tracking, Patch, Third Party Advisory |
| kernel/git/torvalds/linux.git - Linux kernel source tree | af854a3a-2127-422b-91ae-364da2661108 | git.kernel.org | Issue Tracking, Patch, Vendor Advisory |
| Linux Kernel 'crypto/algif_hash.c' Local Denial of Service Vulnerability | af854a3a-2127-422b-91ae-364da2661108 | www.securityfocus.com | |
| Red Hat Customer Portal | af854a3a-2127-422b-91ae-364da2661108 | access.redhat.com | |
| CVE-2016-8646 - Red Hat Customer Portal | MITRE | access.redhat.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 378249 Virtuozzo Linux Security Update for kernel-tools-libs (VZLSA-2017:1308)