CVE-2011-1011 Privilege escalation in n/a
Medium 6.9
Published
Updated
Check this codebase for CVE-2011-1011 and fix it if it is affected.
What it is: CVE-2011-1011 is a medium-severity vulnerability in Redhat Enterprise Linux, published on 24 Feb 2011. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2011-1011 in the wild and no public exploit code.
Affected product: Redhat Enterprise Linux. No package-level version data is available, so check the vendor advisory linked from the reference page.
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2011-1011/ (Markdown: https://insights.sbomify.com/CVE-2011-1011/index.md)
Local attackers can exploit improper /tmp directory permissions in seunshare to replace files, potentially gaining privileges or causing denial of service.
- 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-2011-1011?
CVE-2011-1011 is a medium-severity vulnerability in Redhat Enterprise Linux, published on 24 Feb 2011. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The seunshare_mount function in sandbox/seunshare.c in seunshare in certain Red Hat packages of policycoreutils 2.0.83 and earlier in Red Hat Enterprise Linux (RHEL) 6 and earlier, and Fedora 14 and earlier, mounts a new directory on top of /tmp without assigning root ownership and the sticky bit to this new directory, which allows local users to replace or delete arbitrary /tmp files, and consequently cause a denial of service or possibly gain privileges, by running a setuid application that relies on /tmp, as demonstrated by the ksu application.
Weakness: CWE-264
Which versions are affected by CVE-2011-1011?
It affects 3 products.
Linux distribution packages (40)
policycoreutils Red Hat:enterprise_linux:6::client | All versions | 0:2.0.83-19.8.el6_0 |
policycoreutils-debuginfo Red Hat:enterprise_linux:6::client | All versions | 0:2.0.83-19.8.el6_0 |
policycoreutils-gui Red Hat:enterprise_linux:6::client | All versions | 0:2.0.83-19.8.el6_0 |
policycoreutils-newrole Red Hat:enterprise_linux:6::client | All versions | 0:2.0.83-19.8.el6_0 |
policycoreutils-python Red Hat:enterprise_linux:6::client | All versions | 0:2.0.83-19.8.el6_0 |
policycoreutils-sandbox Red Hat:enterprise_linux:6::client | All versions | 0:2.0.83-19.8.el6_0 |
selinux-policy Red Hat:enterprise_linux:6::client | All versions | 0:3.7.19-54.el6_0.5 |
selinux-policy-doc Red Hat:enterprise_linux:6::client | All versions | 0:3.7.19-54.el6_0.5 |
selinux-policy-minimum Red Hat:enterprise_linux:6::client | All versions | 0:3.7.19-54.el6_0.5 |
selinux-policy-mls Red Hat:enterprise_linux:6::client | All versions | 0:3.7.19-54.el6_0.5 |
selinux-policy-targeted Red Hat:enterprise_linux:6::client | All versions | 0:3.7.19-54.el6_0.5 |
policycoreutils Red Hat:enterprise_linux:6::computenode | All versions | 0:2.0.83-19.8.el6_0 |
policycoreutils-debuginfo Red Hat:enterprise_linux:6::computenode | All versions | 0:2.0.83-19.8.el6_0 |
policycoreutils-gui Red Hat:enterprise_linux:6::computenode | All versions | 0:2.0.83-19.8.el6_0 |
policycoreutils-newrole Red Hat:enterprise_linux:6::computenode | All versions | 0:2.0.83-19.8.el6_0 |
policycoreutils-python Red Hat:enterprise_linux:6::computenode | All versions | 0:2.0.83-19.8.el6_0 |
policycoreutils-sandbox Red Hat:enterprise_linux:6::computenode | All versions | 0:2.0.83-19.8.el6_0 |
selinux-policy Red Hat:enterprise_linux:6::computenode | All versions | 0:3.7.19-54.el6_0.5 |
selinux-policy-doc Red Hat:enterprise_linux:6::computenode | All versions | 0:3.7.19-54.el6_0.5 |
selinux-policy-minimum Red Hat:enterprise_linux:6::computenode | All versions | 0:3.7.19-54.el6_0.5 |
selinux-policy-mls Red Hat:enterprise_linux:6::computenode | All versions | 0:3.7.19-54.el6_0.5 |
selinux-policy-targeted Red Hat:enterprise_linux:6::computenode | All versions | 0:3.7.19-54.el6_0.5 |
policycoreutils Red Hat:enterprise_linux:6::server | All versions | 0:2.0.83-19.8.el6_0 |
policycoreutils-debuginfo Red Hat:enterprise_linux:6::server | All versions | 0:2.0.83-19.8.el6_0 |
policycoreutils-gui Red Hat:enterprise_linux:6::server | All versions | 0:2.0.83-19.8.el6_0 |
policycoreutils-newrole Red Hat:enterprise_linux:6::server | All versions | 0:2.0.83-19.8.el6_0 |
policycoreutils-python Red Hat:enterprise_linux:6::server | All versions | 0:2.0.83-19.8.el6_0 |
policycoreutils-sandbox Red Hat:enterprise_linux:6::server | All versions | 0:2.0.83-19.8.el6_0 |
selinux-policy Red Hat:enterprise_linux:6::server | All versions | 0:3.7.19-54.el6_0.5 |
selinux-policy-doc Red Hat:enterprise_linux:6::server | All versions | 0:3.7.19-54.el6_0.5 |
selinux-policy-minimum Red Hat:enterprise_linux:6::server | All versions | 0:3.7.19-54.el6_0.5 |
selinux-policy-mls Red Hat:enterprise_linux:6::server | All versions | 0:3.7.19-54.el6_0.5 |
selinux-policy-targeted Red Hat:enterprise_linux:6::server | All versions | 0:3.7.19-54.el6_0.5 |
policycoreutils Red Hat:enterprise_linux:6::workstation | All versions | 0:2.0.83-19.8.el6_0 |
policycoreutils-debuginfo Red Hat:enterprise_linux:6::workstation | All versions | 0:2.0.83-19.8.el6_0 |
policycoreutils-gui Red Hat:enterprise_linux:6::workstation | All versions | 0:2.0.83-19.8.el6_0 |
policycoreutils-newrole Red Hat:enterprise_linux:6::workstation | All versions | 0:2.0.83-19.8.el6_0 |
policycoreutils-python Red Hat:enterprise_linux:6::workstation | All versions | 0:2.0.83-19.8.el6_0 |
policycoreutils-sandbox Red Hat:enterprise_linux:6::workstation | All versions | 0:2.0.83-19.8.el6_0 |
selinux-policy Red Hat:enterprise_linux:6::workstation | All versions | 0:3.7.19-54.el6_0.5 |
Products include Redhat Enterprise Linux, Redhat Fedora, Redhat Policycoreutils.
How do I fix CVE-2011-1011?
Apply the vendor's patch.
Is CVE-2011-1011 being exploited?
There is no known exploitation of CVE-2011-1011 in the wild and no public exploit code.
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Sources
Also known as GHSA-7fgm-8fq2-6xv7, RHSA-2011:0414.