CVE-2016-10011

Severity: medium (CVSS 5.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-01-05 · updated 2026-06-17
Weakness: CWE-320

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 access to a privilege-separated child process.

Affected products

OpenSSH: through 7.3

References

http://www.openwall.com/lists/oss-security/2016/12/19/2
http://www.securityfocus.com/bid/94977
http://www.securitytracker.com/id/1037490
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.647637
https://access.redhat.com/errata/RHSA-2017:2029
https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
https://cert-portal.siemens.com/productcert/pdf/ssa-676336.pdf
https://github.com/openbsd/src/commit/ac8147a06ed2e2403fb6b9a0c03e618a9333c0e9
https://lists.debian.org/debian-lts-announce/2018/09/msg00010.html
https://security.netapp.com/advisory/ntap-20171130-0002/
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03818en_us
https://www.openssh.com/txt/release-7.4

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