CVE-2016-2775 Denial of service in n/a
Medium 5.9
Published
Updated
Check this codebase for CVE-2016-2775 and fix it if it is affected.
What it is: CVE-2016-2775 is a medium-severity denial of service vulnerability in Fedoraproject Fedora, published on 19 Jul 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-2016-2775 in the wild and no public exploit code.
Affected product: Fedoraproject Fedora. 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-2016-2775/ (Markdown: https://insights.sbomify.com/CVE-2016-2775/index.md)
Remote attackers can crash the ISC BIND daemon via a long lightweight resolver protocol request when lwresd or named lwres is enabled.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2016-2775?
CVE-2016-2775 is a medium-severity denial of service vulnerability in Fedoraproject Fedora, published on 19 Jul 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
ISC BIND 9.x before 9.9.9-P2, 9.10.x before 9.10.4-P2, and 9.11.x before 9.11.0b2, when lwresd or the named lwres option is enabled, allows remote attackers to cause a denial of service (daemon crash) via a long request that uses the lightweight resolver protocol.
Weakness: CWE-20
Which versions are affected by CVE-2016-2775?
It affects 9 products.
Linux distribution packages (40)
bind Red Hat:enterprise_linux:6::client | All versions | 32:9.8.2-0.62.rc1.el6 |
bind-chroot Red Hat:enterprise_linux:6::client | All versions | 32:9.8.2-0.62.rc1.el6 |
bind-debuginfo Red Hat:enterprise_linux:6::client | All versions | 32:9.8.2-0.62.rc1.el6 |
bind-devel Red Hat:enterprise_linux:6::client | All versions | 32:9.8.2-0.62.rc1.el6 |
bind-libs Red Hat:enterprise_linux:6::client | All versions | 32:9.8.2-0.62.rc1.el6 |
bind-sdb Red Hat:enterprise_linux:6::client | All versions | 32:9.8.2-0.62.rc1.el6 |
bind-utils Red Hat:enterprise_linux:6::client | All versions | 32:9.8.2-0.62.rc1.el6 |
bind Red Hat:enterprise_linux:6::computenode | All versions | 32:9.8.2-0.62.rc1.el6 |
bind-chroot Red Hat:enterprise_linux:6::computenode | All versions | 32:9.8.2-0.62.rc1.el6 |
bind-debuginfo Red Hat:enterprise_linux:6::computenode | All versions | 32:9.8.2-0.62.rc1.el6 |
bind-devel Red Hat:enterprise_linux:6::computenode | All versions | 32:9.8.2-0.62.rc1.el6 |
bind-libs Red Hat:enterprise_linux:6::computenode | All versions | 32:9.8.2-0.62.rc1.el6 |
bind-sdb Red Hat:enterprise_linux:6::computenode | All versions | 32:9.8.2-0.62.rc1.el6 |
bind-utils Red Hat:enterprise_linux:6::computenode | All versions | 32:9.8.2-0.62.rc1.el6 |
bind Red Hat:enterprise_linux:6::server | All versions | 32:9.8.2-0.62.rc1.el6 |
bind-chroot Red Hat:enterprise_linux:6::server | All versions | 32:9.8.2-0.62.rc1.el6 |
bind-debuginfo Red Hat:enterprise_linux:6::server | All versions | 32:9.8.2-0.62.rc1.el6 |
bind-devel Red Hat:enterprise_linux:6::server | All versions | 32:9.8.2-0.62.rc1.el6 |
bind-libs Red Hat:enterprise_linux:6::server | All versions | 32:9.8.2-0.62.rc1.el6 |
bind-sdb Red Hat:enterprise_linux:6::server | All versions | 32:9.8.2-0.62.rc1.el6 |
bind-utils Red Hat:enterprise_linux:6::server | All versions | 32:9.8.2-0.62.rc1.el6 |
bind Red Hat:enterprise_linux:6::workstation | All versions | 32:9.8.2-0.62.rc1.el6 |
bind-chroot Red Hat:enterprise_linux:6::workstation | All versions | 32:9.8.2-0.62.rc1.el6 |
bind-debuginfo Red Hat:enterprise_linux:6::workstation | All versions | 32:9.8.2-0.62.rc1.el6 |
bind-devel Red Hat:enterprise_linux:6::workstation | All versions | 32:9.8.2-0.62.rc1.el6 |
bind-libs Red Hat:enterprise_linux:6::workstation | All versions | 32:9.8.2-0.62.rc1.el6 |
bind-sdb Red Hat:enterprise_linux:6::workstation | All versions | 32:9.8.2-0.62.rc1.el6 |
bind-utils Red Hat:enterprise_linux:6::workstation | All versions | 32:9.8.2-0.62.rc1.el6 |
bind Red Hat:enterprise_linux:7::client | All versions | 32:9.9.4-50.el7 |
bind-chroot Red Hat:enterprise_linux:7::client | All versions | 32:9.9.4-50.el7 |
bind-debuginfo Red Hat:enterprise_linux:7::client | All versions | 32:9.9.4-50.el7 |
bind-devel Red Hat:enterprise_linux:7::client | All versions | 32:9.9.4-50.el7 |
bind-libs Red Hat:enterprise_linux:7::client | All versions | 32:9.9.4-50.el7 |
bind-libs-lite Red Hat:enterprise_linux:7::client | All versions | 32:9.9.4-50.el7 |
bind-license Red Hat:enterprise_linux:7::client | All versions | 32:9.9.4-50.el7 |
bind-lite-devel Red Hat:enterprise_linux:7::client | All versions | 32:9.9.4-50.el7 |
bind-pkcs11 Red Hat:enterprise_linux:7::client | All versions | 32:9.9.4-50.el7 |
bind-pkcs11-devel Red Hat:enterprise_linux:7::client | All versions | 32:9.9.4-50.el7 |
bind-pkcs11-libs Red Hat:enterprise_linux:7::client | All versions | 32:9.9.4-50.el7 |
bind-pkcs11-utils Red Hat:enterprise_linux:7::client | All versions | 32:9.9.4-50.el7 |
Products include Fedoraproject Fedora, Hp Hp-Ux, Isc Bind, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Eus, Redhat Enterprise Linux Server and 3 more.
How do I fix CVE-2016-2775?
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-2016-2775 being exploited?
There is no known exploitation of CVE-2016-2775 in the wild and no public exploit code.
Other vulnerabilities in Fedoraproject Fedora
Sources
Also known as DEBIAN-CVE-2016-2775, GHSA-c3hx-3ppq-fr4p, RHBA-2017:0651, RHBA-2017:1767, RHSA-2017:2533, UBUNTU-CVE-2016-2775.