CVE-2019-11328 Incorrect Permission Assignment for Critical Resource in Singularity

What is CVE-2019-11328?

CVE-2019-11328 is a high-severity vulnerability in Fedoraproject Fedora, published on 14 May 2019. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

An issue was discovered in Singularity 3.1.0 to 3.2.0-rc2, a malicious user with local/network access to the host system (e.g. ssh) could exploit this vulnerability due to insecure permissions allowing a user to edit files within `/run/singularity/instances/sing/<user>/<instance>`. The manipulation of those files can change the behavior of the starter-suid program when instances are joined resulting in potential privilege escalation on the host.

Weakness: CWE-732

Which versions are affected by CVE-2019-11328?

2 open source packages ship an affected version, including github.com/sylabs/singularity. It affects 4 products.

Products include Fedoraproject Fedora, Opensuse Backports, Opensuse Leap, Sylabs Singularity.

How do I fix CVE-2019-11328?

Upgrade github.com/sylabs/singularity to 3.2.0 or later.

Is CVE-2019-11328 being exploited?

There is no known exploitation of CVE-2019-11328 in the wild and no public exploit code.

Other vulnerabilities in Fedoraproject Fedora

• CVE-2024-4577 PHP-CGI OS Command Injection Exploited Critical 9.8
• CVE-2021-39226 Grafana Authentication Bypass Exploited Critical 9.8
• CVE-2019-5544 VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow Exploited Critical 9.8
• CVE-2024-4947 Google Chromium V8 Type Confusion Exploited Critical 9.6
• CVE-2024-4671 Google Chromium Visuals Use-After-Free Exploited Critical 9.6

All Fedoraproject Fedora vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-557g-r22w-9wvx, openSUSE-SU-2019:2288-1.