CVE-2016-2776 Denial of service in n/a
High 7.5
Published
Updated
Check this codebase for CVE-2016-2776 and fix it if it is affected.
What it is: CVE-2016-2776 is a high-severity denial of service vulnerability in Hp Hp-Ux, published on 28 Sep 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2016-2776 exists.
Affected product: Hp Hp-Ux. 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-2016-2776/ (Markdown: https://insights.sbomify.com/CVE-2016-2776/index.md)
Remote attackers can cause a denial of service in ISC BIND by sending crafted queries that trigger an assertion failure and daemon exit.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2016-2776?
CVE-2016-2776 is a high-severity denial of service vulnerability in Hp Hp-Ux, published on 28 Sep 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
buffer.c in named in ISC BIND 9 before 9.9.9-P3, 9.10.x before 9.10.4-P3, and 9.11.x before 9.11.0rc3 does not properly construct responses, which allows remote attackers to cause a denial of service (assertion failure and daemon exit) via a crafted query.
Weakness: CWE-20
Which versions are affected by CVE-2016-2776?
It affects 5 products.
Linux distribution packages (40)
bind Red Hat:enterprise_linux:5::client | All versions | 30:9.3.6-25.P1.el5_11.9 |
bind-debuginfo Red Hat:enterprise_linux:5::client | All versions | 30:9.3.6-25.P1.el5_11.9 |
bind-libs Red Hat:enterprise_linux:5::client | All versions | 30:9.3.6-25.P1.el5_11.9 |
bind-sdb Red Hat:enterprise_linux:5::client | All versions | 30:9.3.6-25.P1.el5_11.9 |
bind-utils Red Hat:enterprise_linux:5::client | All versions | 30:9.3.6-25.P1.el5_11.9 |
bind Red Hat:enterprise_linux:5::client_workstation | All versions | 30:9.3.6-25.P1.el5_11.9 |
bind-chroot Red Hat:enterprise_linux:5::client_workstation | All versions | 30:9.3.6-25.P1.el5_11.9 |
bind-debuginfo Red Hat:enterprise_linux:5::client_workstation | All versions | 30:9.3.6-25.P1.el5_11.9 |
bind-devel Red Hat:enterprise_linux:5::client_workstation | All versions | 30:9.3.6-25.P1.el5_11.9 |
bind-libbind-devel Red Hat:enterprise_linux:5::client_workstation | All versions | 30:9.3.6-25.P1.el5_11.9 |
bind97 Red Hat:enterprise_linux:5::client_workstation | All versions | 32:9.7.0-21.P2.el5_11.7 |
bind97-chroot Red Hat:enterprise_linux:5::client_workstation | All versions | 32:9.7.0-21.P2.el5_11.7 |
bind97-debuginfo Red Hat:enterprise_linux:5::client_workstation | All versions | 32:9.7.0-21.P2.el5_11.7 |
bind97-devel Red Hat:enterprise_linux:5::client_workstation | All versions | 32:9.7.0-21.P2.el5_11.7 |
bind97-libs Red Hat:enterprise_linux:5::client_workstation | All versions | 32:9.7.0-21.P2.el5_11.7 |
bind97-utils Red Hat:enterprise_linux:5::client_workstation | All versions | 32:9.7.0-21.P2.el5_11.7 |
caching-nameserver Red Hat:enterprise_linux:5::client_workstation | All versions | 30:9.3.6-25.P1.el5_11.9 |
bind Red Hat:enterprise_linux:5::server | All versions | 30:9.3.6-25.P1.el5_11.9 |
bind-chroot Red Hat:enterprise_linux:5::server | All versions | 30:9.3.6-25.P1.el5_11.9 |
bind-debuginfo Red Hat:enterprise_linux:5::server | All versions | 30:9.3.6-25.P1.el5_11.9 |
bind-devel Red Hat:enterprise_linux:5::server | All versions | 30:9.3.6-25.P1.el5_11.9 |
bind-libbind-devel Red Hat:enterprise_linux:5::server | All versions | 30:9.3.6-25.P1.el5_11.9 |
bind-libs Red Hat:enterprise_linux:5::server | All versions | 30:9.3.6-25.P1.el5_11.9 |
bind-sdb Red Hat:enterprise_linux:5::server | All versions | 30:9.3.6-25.P1.el5_11.9 |
bind-utils Red Hat:enterprise_linux:5::server | All versions | 30:9.3.6-25.P1.el5_11.9 |
bind97 Red Hat:enterprise_linux:5::server | All versions | 32:9.7.0-21.P2.el5_11.7 |
bind97-chroot Red Hat:enterprise_linux:5::server | All versions | 32:9.7.0-21.P2.el5_11.7 |
bind97-debuginfo Red Hat:enterprise_linux:5::server | All versions | 32:9.7.0-21.P2.el5_11.7 |
bind97-devel Red Hat:enterprise_linux:5::server | All versions | 32:9.7.0-21.P2.el5_11.7 |
bind97-libs Red Hat:enterprise_linux:5::server | All versions | 32:9.7.0-21.P2.el5_11.7 |
bind97-utils Red Hat:enterprise_linux:5::server | All versions | 32:9.7.0-21.P2.el5_11.7 |
caching-nameserver Red Hat:enterprise_linux:5::server | All versions | 30:9.3.6-25.P1.el5_11.9 |
bind Red Hat:enterprise_linux:6::client | All versions | 32:9.8.2-0.47.rc1.el6_8.1 |
bind-chroot Red Hat:enterprise_linux:6::client | All versions | 32:9.8.2-0.47.rc1.el6_8.1 |
bind-debuginfo Red Hat:enterprise_linux:6::client | All versions | 32:9.8.2-0.47.rc1.el6_8.1 |
bind-devel Red Hat:enterprise_linux:6::client | All versions | 32:9.8.2-0.47.rc1.el6_8.1 |
bind-libs Red Hat:enterprise_linux:6::client | All versions | 32:9.8.2-0.47.rc1.el6_8.1 |
bind-sdb Red Hat:enterprise_linux:6::client | All versions | 32:9.8.2-0.47.rc1.el6_8.1 |
bind-utils Red Hat:enterprise_linux:6::client | All versions | 32:9.8.2-0.47.rc1.el6_8.1 |
bind Red Hat:enterprise_linux:6::computenode | All versions | 32:9.8.2-0.47.rc1.el6_8.1 |
Products include Hp Hp-Ux, Isc Bind, Oracle Linux, Oracle Solaris, Oracle Vm Server.
How do I fix CVE-2016-2776?
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-2016-2776 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2016-2776 exists.
Public exploit code: 1 Metasploit module, 1 Exploit-DB entry and 1 proofs of concept on GitHub.
Other vulnerabilities in Hp Hp-Ux
Sources
Also known as ALPINE-CVE-2016-2776, DEBIAN-CVE-2016-2776, GHSA-jxr9-jr43-c424, RHSA-2016:1944, RHSA-2016:1945, SUSE-SU-2016:2399-1 and 4 more.