CVE-2011-1769 Denial of service in n/a

Low 1.2 Published 29 Aug 2011 Updated 6 Aug 2024

Local attackers can cause a system crash via crafted ELF programs when SystemTap unprivileged mode is enabled.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: Available

What is CVE-2011-1769?

CVE-2011-1769 is a low-severity denial of service vulnerability in n/a, published on 29 Aug 2011. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

SystemTap 1.4 and earlier, when unprivileged (aka stapusr) mode is enabled, allows local users to cause a denial of service (divide-by-zero error and OOPS) via a crafted ELF program with DWARF expressions that are not properly handled by a stap script that performs context variable access.

Weakness: CWE-189

Which versions are affected by CVE-2011-1769?

It affects 1 product.

Linux distribution packages (8)

`systemtap` Red Hat:enterprise_linux:5::server	All versions	`0:1.3-4.el5_6.1`
`systemtap-client` Red Hat:enterprise_linux:5::server	All versions	`0:1.3-4.el5_6.1`
`systemtap-debuginfo` Red Hat:enterprise_linux:5::server	All versions	`0:1.3-4.el5_6.1`
`systemtap-initscript` Red Hat:enterprise_linux:5::server	All versions	`0:1.3-4.el5_6.1`
`systemtap-runtime` Red Hat:enterprise_linux:5::server	All versions	`0:1.3-4.el5_6.1`
`systemtap-sdt-devel` Red Hat:enterprise_linux:5::server	All versions	`0:1.3-4.el5_6.1`
`systemtap-server` Red Hat:enterprise_linux:5::server	All versions	`0:1.3-4.el5_6.1`
`systemtap-testsuite` Red Hat:enterprise_linux:5::server	All versions	`0:1.3-4.el5_6.1`

Products include Systemtap Systemtap.

How do I fix CVE-2011-1769?

Upgrade to a fixed version.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2011-1769 being exploited?

There is no known exploitation of CVE-2011-1769 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2011-1769, GHSA-g86f-cxqj-55hx, RHSA-2011:0841.