CVE-2016-0773 Denial of service in n/a
High 7.5
Published
Updated
Check this codebase for CVE-2016-0773 and fix it if it is affected.
What it is: CVE-2016-0773 is a high-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 17 Feb 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2016-0773 in the wild and no public exploit code.
Affected product: Canonical Ubuntu 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-2016-0773/ (Markdown: https://insights.sbomify.com/CVE-2016-0773/index.md)
Remote attackers can cause a denial of service via infinite loops or crashes in PostgreSQL by submitting large Unicode character ranges in regular expressions.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2016-0773?
CVE-2016-0773 is a high-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 17 Feb 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
PostgreSQL before 9.1.20, 9.2.x before 9.2.15, 9.3.x before 9.3.11, 9.4.x before 9.4.6, and 9.5.x before 9.5.1 allows remote attackers to cause a denial of service (infinite loop or buffer overflow and crash) via a large Unicode character range in a regular expression.
Weakness: CWE-119
Which versions are affected by CVE-2016-0773?
It affects 3 products.
Linux distribution packages (40)
postgresql Red Hat:enterprise_linux:6::client | All versions | 0:8.4.20-5.el6_7 |
postgresql-contrib Red Hat:enterprise_linux:6::client | All versions | 0:8.4.20-5.el6_7 |
postgresql-debuginfo Red Hat:enterprise_linux:6::client | All versions | 0:8.4.20-5.el6_7 |
postgresql-devel Red Hat:enterprise_linux:6::client | All versions | 0:8.4.20-5.el6_7 |
postgresql-docs Red Hat:enterprise_linux:6::client | All versions | 0:8.4.20-5.el6_7 |
postgresql-libs Red Hat:enterprise_linux:6::client | All versions | 0:8.4.20-5.el6_7 |
postgresql-plperl Red Hat:enterprise_linux:6::client | All versions | 0:8.4.20-5.el6_7 |
postgresql-plpython Red Hat:enterprise_linux:6::client | All versions | 0:8.4.20-5.el6_7 |
postgresql-pltcl Red Hat:enterprise_linux:6::client | All versions | 0:8.4.20-5.el6_7 |
postgresql-server Red Hat:enterprise_linux:6::client | All versions | 0:8.4.20-5.el6_7 |
postgresql-test Red Hat:enterprise_linux:6::client | All versions | 0:8.4.20-5.el6_7 |
postgresql Red Hat:enterprise_linux:6::computenode | All versions | 0:8.4.20-5.el6_7 |
postgresql-contrib Red Hat:enterprise_linux:6::computenode | All versions | 0:8.4.20-5.el6_7 |
postgresql-debuginfo Red Hat:enterprise_linux:6::computenode | All versions | 0:8.4.20-5.el6_7 |
postgresql-devel Red Hat:enterprise_linux:6::computenode | All versions | 0:8.4.20-5.el6_7 |
postgresql-docs Red Hat:enterprise_linux:6::computenode | All versions | 0:8.4.20-5.el6_7 |
postgresql-libs Red Hat:enterprise_linux:6::computenode | All versions | 0:8.4.20-5.el6_7 |
postgresql-plperl Red Hat:enterprise_linux:6::computenode | All versions | 0:8.4.20-5.el6_7 |
postgresql-plpython Red Hat:enterprise_linux:6::computenode | All versions | 0:8.4.20-5.el6_7 |
postgresql-pltcl Red Hat:enterprise_linux:6::computenode | All versions | 0:8.4.20-5.el6_7 |
postgresql-server Red Hat:enterprise_linux:6::computenode | All versions | 0:8.4.20-5.el6_7 |
postgresql-test Red Hat:enterprise_linux:6::computenode | All versions | 0:8.4.20-5.el6_7 |
postgresql Red Hat:enterprise_linux:6::server | All versions | 0:8.4.20-5.el6_7 |
postgresql-contrib Red Hat:enterprise_linux:6::server | All versions | 0:8.4.20-5.el6_7 |
postgresql-debuginfo Red Hat:enterprise_linux:6::server | All versions | 0:8.4.20-5.el6_7 |
postgresql-devel Red Hat:enterprise_linux:6::server | All versions | 0:8.4.20-5.el6_7 |
postgresql-docs Red Hat:enterprise_linux:6::server | All versions | 0:8.4.20-5.el6_7 |
postgresql-libs Red Hat:enterprise_linux:6::server | All versions | 0:8.4.20-5.el6_7 |
postgresql-plperl Red Hat:enterprise_linux:6::server | All versions | 0:8.4.20-5.el6_7 |
postgresql-plpython Red Hat:enterprise_linux:6::server | All versions | 0:8.4.20-5.el6_7 |
postgresql-pltcl Red Hat:enterprise_linux:6::server | All versions | 0:8.4.20-5.el6_7 |
postgresql-server Red Hat:enterprise_linux:6::server | All versions | 0:8.4.20-5.el6_7 |
postgresql-test Red Hat:enterprise_linux:6::server | All versions | 0:8.4.20-5.el6_7 |
postgresql Red Hat:enterprise_linux:6::workstation | All versions | 0:8.4.20-5.el6_7 |
postgresql-contrib Red Hat:enterprise_linux:6::workstation | All versions | 0:8.4.20-5.el6_7 |
postgresql-debuginfo Red Hat:enterprise_linux:6::workstation | All versions | 0:8.4.20-5.el6_7 |
postgresql-devel Red Hat:enterprise_linux:6::workstation | All versions | 0:8.4.20-5.el6_7 |
postgresql-docs Red Hat:enterprise_linux:6::workstation | All versions | 0:8.4.20-5.el6_7 |
postgresql-libs Red Hat:enterprise_linux:6::workstation | All versions | 0:8.4.20-5.el6_7 |
postgresql-plperl Red Hat:enterprise_linux:6::workstation | All versions | 0:8.4.20-5.el6_7 |
Products include Canonical Ubuntu Linux, Debian Debian Linux, Postgresql Postgresql.
How do I fix CVE-2016-0773?
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-2016-0773 being exploited?
There is no known exploitation of CVE-2016-0773 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as DLA-432-1, GHSA-6p6w-jmg5-8cvx, RHSA-2016:0346, RHSA-2016:0347, RHSA-2016:0348, RHSA-2016:0349 and 2 more.