Debian 7 Wheezy: DLA-1390-1 High: Procps Privilege Escalation Risks

debian lts

May 31, 2018

The Qualys Research Labs discovered multiple vulnerabilities in procps, a set of command line and full screen utilities for browsing procfs

Topics Covered

security advisory denial of service privilege escalation Debian high procps multiple risks

Summary

top read its configuration from the current working directory if no
$HOME was configured. If top were started from a directory writable
by the attacker (such as /tmp) this could result in local privilege
escalation.

CVE-2018-1123

Denial of service against the ps invocation of another user.

CVE-2018-1124

An integer overflow in the file2strvec() function of libprocps could
result in local privilege escalation.

CVE-2018-1125

A stack-based buffer overflow in pgrep could result in denial
of service for a user using pgrep for inspecting a specially
crafted process.

CVE-2018-1126

Incorrect integer size parameters used in wrappers for standard C
allocators could cause integer truncation and lead to integer
overflow issues.

For Debian 7 "Wheezy", these problems have been fixed in version
1:3.3.3.3+deb7u1.

We recommend that you upgrade your procps packages.

The Debian LTS team would like to thank Abhijith PA for preparing this update.