CVE-2016-9772

OpenAFS 1.6.19 and earlier allows remote attackers to obtain sensitive directory information via...

5.3 MediumFix available

OpenAFS 1.6.19 and earlier allows remote attackers to obtain sensitive directory information via vectors involving the (1) client cache partition, (2) fileserver vice partition, or (3) certain RPC responses.

Attack profile

How easy it is to exploit

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

What an attacker can affect

Confidentiality: Low
Integrity: None
Availability: None

Exploit likelihood

1.69%Up 0.5 points since Feb 4, 2022

What each source reports

NVD Score used 5.3

Record: CVE-2016-9772
CVSS 3.0: 5.3 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS 2.0: 5.0 MediumAV:N/AC:L/Au:N/C:P/I:N/A:N
Weakness: CWE-200
Updated: 2026-11-02

CVE List No score

Record: CVE-2016-9772
Updated: 2026-11-02

EUVDEUVD-2016-10573 No score

Record: EUVD-2016-10573
Updated: 2026-11-03

GitHub AdvisoriesGHSA-qx33-h57r-w5q6 5.3

OpenAFS 1.6.19 and earlier allows remote attackers to obtain sensitive directory information via...

Record: GHSA-qx33-h57r-w5q6
CVSS 3.0: 5.3 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness: CWE-200
Updated: 2026-11-02

OSV 5.3

Record: CVE-2016-9772
CVSS 3.0: 5.3 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Updated: 2026-11-02

OSVDEBIAN-CVE-2016-9772 5.3

Record: DEBIAN-CVE-2016-9772
CVSS 3.0: 5.3 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Updated: 2026-11-02

OSVUBUNTU-CVE-2016-9772 5.3

Record: UBUNTU-CVE-2016-9772
CVSS 3.0: 5.3 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Updated: 2026-11-02

OSVMGASA-2017-0037 No score

Updated openafs packages fix security vulnerability

Due to incomplete initialization or clearing of reused memory, OpenAFS directory objects are likely to contain "dead" directory entry information. This extraneous information is not active - that is, it is logically invisible to the fileserver and client. However, the leaked information is physically visible on the fileserver vice partition, on the wire in FetchData replies and other RPCs, and on the client cache partition. This constitutes a leak of directory information (CVE-2016-9772).

The openafs package has been updated to version 1.6.20, to fix this issue and other bugs.

Record: MGASA-2017-0037
Updated: 2026-11-02

Affected products

openafs

Affected packages

Affected packages
Package	Affected	Fixed
`openafs` Debian:12	before 1.6.20-1	1.6.20-1
`openafs` Debian:13	before 1.6.20-1	1.6.20-1
`openafs` Debian:7	before 1.6.1-3+deb7u7, 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+1 Show 4 moreShow less 1.6.1-3+deb7u31.6.1-3+deb7u41.6.1-3+deb7u51.6.1-3+deb7u6	1.6.1-3+deb7u7
`openafs` Mageia:5	before 1.6.20-1.mga5	1.6.20-1.mga5
`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
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2016-9772 is a medium vulnerability (CVSS 5.3) in Openafs, published December 3, 2016. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.69%, the 77th percentile. Fixed in openafs 1.6.20-1.

References

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