CVE-2016-10011
openssh: Leak of host private key material to privilege-separated child process via realloc()
Severity
LowRed Hat Product Security
CVSS 3.0
Review impact separately from score.
Published · December 19, 2016
Updated · May 30, 2026
Description
It was found that the host private key material could possibly leak to the privilege-separated child processes via re-allocated memory. An attacker able to compromise the privilege-separated process could therefore obtain the leaked key information.
Statement
It seems that this flaw is not practically exploitable, the leak of host private key material to the privilege-separated child processes is theoretical. No such leak was observed in practice for normal-sized keys, nor does a leak to the child processes directly expose key material to unprivileged users. Because of the this restriction for successful exploitation, this issue has been rated as having Low security impact. A future update may address this flaw.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.0 · 2.5CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
CVSS 2.0 · 1AV:L/AC:H/Au:S/C:P/I:N/A:N
CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor