CVE-2016-10011
authfile.c in sshd in OpenSSH before 7.4 does not properly consider the effects of realloc on buffer contents, which might allow local users to obtain sensitive private-key information by leveraging
02 Description
authfile.c in sshd in OpenSSH before 7.4 does not properly consider the effects of realloc on buffer contents, which might allow local users to obtain sensitive private-key information by leveraging
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 1.10% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 65.3% of scored records. A rank, not a probability.
- NVD base score
- 5.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Low. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2017-01-05 00:00Z9 YR AGO
- Last updated
- 2026-05-29 20:19Z5 MO AGO
- Reserved
- 2016-12-19
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 6.2)
- CNA CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Weaknesses
- Data version
- 5.2
- Document digest
- 2c0eb28f0377e914f5a7f42bdc52ee187646995bd7924b110bb25ff8e02ad033
05 Affected products
06 References
- security.netapp.comhttps://security.netapp.com/advisory/ntap-20171130-0002/
- www.openwall.com[oss-security] 20161219 Announce: OpenSSH 7.4 releasedhttp://www.openwall.com/lists/oss-security/2016/12/19/2
- www.securitytracker.com1037490http://www.securitytracker.com/id/1037490
- github.comhttps://github.com/openbsd/src/commit/ac8147a06ed2e2403fb6b9a0c03e618a9333c0e9
- support.hpe.comhttps://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03818en_us
- www.slackware.comhttp://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.647637
- access.redhat.comRHSA-2017:2029https://access.redhat.com/errata/RHSA-2017:2029
- lists.debian.org[debian-lts-announce] 20180910 [SECURITY] [DLA 1500-1] openssh security updatehttps://lists.debian.org/debian-lts-announce/2018/09/msg00010.html
- www.securityfocus.com94977http://www.securityfocus.com/bid/94977
- www.openssh.comhttps://www.openssh.com/txt/release-7.4
- cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/pdf/ssa-676336.pdf
- cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
07 Fixed in
Arch Linux
- openssh Fixed in 7.4p1-1
Source: Arch Linux Security Tracker, the Arch Linux security team. Reformatted by exploit.cc.
Debian 12
- openssh Fixed in 1:7.4p1-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- openssh Fixed in 1:7.4p1-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- openssh Fixed in 1:7.4p1-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 14.04 LTS
- openssh Fixed in 1:6.6p1-2ubuntu2.10
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- openssh Fixed in 1:7.2p2-4ubuntu2.4
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.