CVE-2015-8312

Off-by-one error in afs_pioctl.c in OpenAFS before 1.6.16 might allow local users to cause a...

7.8 HighFix available

CVE-2015-8312 is a high vulnerability (CVSS 7.8) in Openafs, published May 5, 2016. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.36%, the 29th percentile. Fixed in openafs 1.6.17-1.

Off-by-one error in afs_pioctl.c in OpenAFS before 1.6.16 might allow local users to cause a denial of service (memory overwrite and system crash) via a pioctl with an input buffer size of 4096 bytes.

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

0.36%Down 0.5 points since Feb 4, 2022

What each source reports

NVD Score used 7.8

Record: CVE-2015-8312
CVSS 3.0: 7.8 HighCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0: 7.2 HighAV:L/AC:L/Au:N/C:C/I:C/A:C
Weakness: CWE-189
Updated: 2026-11-02

CVE List No score

Record: CVE-2015-8312
Updated: 2026-11-02

EUVDEUVD-2015-8198 No score

Record: EUVD-2015-8198
Updated: 2026-11-03

GitHub AdvisoriesGHSA-67jh-vhcp-3f86 7.8

Off-by-one error in afs_pioctl.c in OpenAFS before 1.6.16 might allow local users to cause a...

Record: GHSA-67jh-vhcp-3f86
CVSS 3.0: 7.8 HighCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSV 7.8

Record: CVE-2015-8312
CVSS 3.0: 7.8 HighCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVDEBIAN-CVE-2015-8312 7.8

Record: DEBIAN-CVE-2015-8312
CVSS 3.0: 7.8 HighCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVUBUNTU-CVE-2015-8312 7.8

Record: UBUNTU-CVE-2015-8312
CVSS 3.0: 7.8 HighCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`openafs` Debian:12	before 1.6.17-1	1.6.17-1
`openafs` Debian:13	before 1.6.17-1	1.6.17-1
`openafs` Debian:7	before 1.6.1-3+deb7u6, plus listed versions 1.6.1-31.6.1-3+deb7u11.6.1-3+deb7u1~bpo60+11.6.1-3+deb7u21.6.1-3+deb7u2~bpo60+11.6.1-3+deb7u31.6.1-3+deb7u41.6.1-3+deb7u5	1.6.1-3+deb7u6
`openafs` Debian:8	before 1.6.9-2+deb8u5, plus listed versions 1.6.9-2+deb8u21.6.9-2+deb8u31.6.9-2+deb8u41.6.9-2+deb8u4~bpo70+1	1.6.9-2+deb8u5
`openafs` Ubuntu:16.04:LTS	All versions, plus listed versions 1.6.14-11.6.15-11.6.15-1ubuntu11.6.15-1ubuntu1.1	None known

History

History
When	Changed	Sources
2026-11-03	aliases	EUVD
2026-11-02	created	CVE List, GitHub Advisories, NVD, OSV