CVE-2016-8646
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.
Does this matter?
Lower severity and a low EPSS score (0.43%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.0
- 5.5 MEDIUMCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.43% probability · 37th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- linux/linux kernel
- Source
- secalert@redhat.com
EPSS 0.4% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4afa5f9617927453ac04b24b584f6c718dfb4f45Issue Tracking, Patch, Vendor Advisory
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.3.6Release Notes
- http://www.openwall.com/lists/oss-security/2016/11/15/2Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/94309
- https://access.redhat.com/errata/RHSA-2017:1297
- https://access.redhat.com/errata/RHSA-2017:1298
- https://access.redhat.com/errata/RHSA-2017:1308
- https://bugzilla.redhat.com/show_bug.cgi?id=1388821Issue Tracking
- https://github.com/torvalds/linux/commit/4afa5f9617927453ac04b24b584f6c718dfb4f45Issue Tracking, Patch, Third Party Advisory
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4afa5f9617927453ac04b24b584f6c718dfb4f45Issue Tracking, Patch, Vendor Advisory
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.3.6Release Notes
- http://www.openwall.com/lists/oss-security/2016/11/15/2Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/94309
- https://access.redhat.com/errata/RHSA-2017:1297
- https://access.redhat.com/errata/RHSA-2017:1298
- https://access.redhat.com/errata/RHSA-2017:1308
- https://bugzilla.redhat.com/show_bug.cgi?id=1388821Issue Tracking
- https://github.com/torvalds/linux/commit/4afa5f9617927453ac04b24b584f6c718dfb4f45Issue Tracking, Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.