runuser in util-linux allows local users to escape to the parent session via a crafted TIOCSTI ioctl call, which pushes characters to the terminal's input buffer.

The remote Redhat Enterprise Linux 7 host has one or more packages installed that are affected by multiple vulnerabilities that have been acknowledged by the vendor but will not be patched.

  - util-linux: runuser tty hijack via TIOCSTI ioctl (CVE-2016-2779)

  - Blkid in util-linux before 2.26rc-1 allows local users to execute arbitrary code. (CVE-2014-9114)

  - Buffer overflow in text-utils/colcrt.c in colcrt in util-linux before 2.27 allows local users to cause a     denial of service (crash) via a crafted file, related to the page global variable. (CVE-2015-5218)

Note that Nessus has not tested for these issues but has instead relied on the package manager's report that the package is installed.

According to the version of the util-linux packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerability :

  - runuser in util-linux allows local users to escape to     the parent session via a crafted TIOCSTI ioctl call,     which pushes characters to the terminal's input     buffer.(CVE-2016-2779)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the version of the util-linux packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerability :

  - It was found that runuser was vulnerable to TIOCSTI     ioctl attacks, allowing the executed program to push     characters to its TTY's input buffer. While being     executed as a non-privileged user, a specially crafted     program could force its parent TTY to enter commands,     interpreted by the shell when runuser     exits.(CVE-2016-2779)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the version of the util-linux packages installed, the EulerOS installation on the remote host is affected by the following vulnerability :

  - runuser in util-linux allows local users to escape to     the parent session via a crafted TIOCSTI ioctl call,     which pushes characters to the terminal's input     buffer.(CVE-2016-2779)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
198650	RHEL 7 : util-linux (Unpatched Vulnerability)	Nessus	Red Hat Local Security Checks	high
151403	EulerOS Virtualization 3.0.2.2 : util-linux (EulerOS-SA-2021-2173)	Nessus	Huawei Local Security Checks	high
151344	EulerOS Virtualization for ARM 64 3.0.2.0 : util-linux (EulerOS-SA-2021-2070)	Nessus	Huawei Local Security Checks	high
147066	EulerOS Virtualization 3.0.6.6 : util-linux (EulerOS-SA-2021-1524)	Nessus	Huawei Local Security Checks	high
145136	EulerOS 2.0 SP3 : util-linux (EulerOS-SA-2021-1128)	Nessus	Huawei Local Security Checks	high
144242	EulerOS 2.0 SP5 : util-linux (EulerOS-SA-2020-2568)	Nessus	Huawei Local Security Checks	high
137462	EulerOS 2.0 SP2 : util-linux (EulerOS-SA-2020-1620)	Nessus	Huawei Local Security Checks	high

Detections

Analytics

CVE-2016-2779

high

Tenable Plugins

high

high

high

high

high

high

high