CVE-2020-16117 Null dereference in n/a
Medium 5.9
Published
Updated
Check this codebase for CVE-2020-16117 and fix it if it is affected.
What it is: CVE-2020-16117 is a medium-severity vulnerability in Debian Debian Linux, published on 29 Jul 2020. 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-2020-16117 in the wild and no public exploit code.
Affected product: Debian Debian 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-2020-16117/ (Markdown: https://insights.sbomify.com/CVE-2020-16117/index.md)
A malicious server can crash the GNOME Evolution mail client via a NULL pointer dereference during IMAP connection attempts.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-16117?
CVE-2020-16117 is a medium-severity vulnerability in Debian Debian Linux, published on 29 Jul 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In GNOME evolution-data-server before 3.35.91, a malicious server can crash the mail client with a NULL pointer dereference by sending an invalid (e.g., minimal) CAPABILITY line on a connection attempt. This is related to imapx_free_capability and imapx_connect_to_server.
Weakness: CWE-476
Which versions are affected by CVE-2020-16117?
It affects 2 products.
Linux distribution packages (40)
evolution-data-server-doc AlmaLinux:8 | All versions | 3.28.5-15.el8 |
evolution-data-server-perl AlmaLinux:8 | All versions | 3.28.5-15.el8 |
evolution-data-server-tests AlmaLinux:8 | All versions | 3.28.5-15.el8 |
evolution-devel AlmaLinux:8 | All versions | 3.28.5-16.el8 |
evolution Red Hat:enterprise_linux:8::appstream | All versions | 0:3.28.5-16.el8 |
evolution-bogofilter Red Hat:enterprise_linux:8::appstream | All versions | 0:3.28.5-16.el8 |
evolution-bogofilter-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:3.28.5-16.el8 |
evolution-data-server Red Hat:enterprise_linux:8::appstream | All versions | 0:3.28.5-15.el8 |
evolution-data-server-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:3.28.5-15.el8 |
evolution-data-server-debugsource Red Hat:enterprise_linux:8::appstream | All versions | 0:3.28.5-15.el8 |
evolution-data-server-devel Red Hat:enterprise_linux:8::appstream | All versions | 0:3.28.5-15.el8 |
evolution-data-server-langpacks Red Hat:enterprise_linux:8::appstream | All versions | 0:3.28.5-15.el8 |
evolution-data-server-tests-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:3.28.5-15.el8 |
evolution-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:3.28.5-16.el8 |
evolution-debugsource Red Hat:enterprise_linux:8::appstream | All versions | 0:3.28.5-16.el8 |
evolution-ews Red Hat:enterprise_linux:8::appstream | All versions | 0:3.28.5-10.el8 |
evolution-ews-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:3.28.5-10.el8 |
evolution-ews-debugsource Red Hat:enterprise_linux:8::appstream | All versions | 0:3.28.5-10.el8 |
evolution-ews-langpacks Red Hat:enterprise_linux:8::appstream | All versions | 0:3.28.5-10.el8 |
evolution-help Red Hat:enterprise_linux:8::appstream | All versions | 0:3.28.5-16.el8 |
evolution-langpacks Red Hat:enterprise_linux:8::appstream | All versions | 0:3.28.5-16.el8 |
evolution-pst Red Hat:enterprise_linux:8::appstream | All versions | 0:3.28.5-16.el8 |
evolution-pst-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:3.28.5-16.el8 |
evolution-spamassassin Red Hat:enterprise_linux:8::appstream | All versions | 0:3.28.5-16.el8 |
evolution-spamassassin-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:3.28.5-16.el8 |
evolution-bogofilter-debuginfo Red Hat:enterprise_linux:8::crb | All versions | 0:3.28.5-16.el8 |
evolution-data-server-debuginfo Red Hat:enterprise_linux:8::crb | All versions | 0:3.28.5-15.el8 |
evolution-data-server-debugsource Red Hat:enterprise_linux:8::crb | All versions | 0:3.28.5-15.el8 |
evolution-data-server-doc Red Hat:enterprise_linux:8::crb | All versions | 0:3.28.5-15.el8 |
evolution-data-server-perl Red Hat:enterprise_linux:8::crb | All versions | 0:3.28.5-15.el8 |
evolution-data-server-tests Red Hat:enterprise_linux:8::crb | All versions | 0:3.28.5-15.el8 |
evolution-data-server-tests-debuginfo Red Hat:enterprise_linux:8::crb | All versions | 0:3.28.5-15.el8 |
evolution-debuginfo Red Hat:enterprise_linux:8::crb | All versions | 0:3.28.5-16.el8 |
evolution-debugsource Red Hat:enterprise_linux:8::crb | All versions | 0:3.28.5-16.el8 |
evolution-devel Red Hat:enterprise_linux:8::crb | All versions | 0:3.28.5-16.el8 |
evolution-pst-debuginfo Red Hat:enterprise_linux:8::crb | All versions | 0:3.28.5-16.el8 |
evolution-spamassassin-debuginfo Red Hat:enterprise_linux:8::crb | All versions | 0:3.28.5-16.el8 |
evolution Rocky Linux:8 | All versions | 0:3.28.5-16.el8 |
evolution-data-server Rocky Linux:8 | All versions | 0:3.28.5-15.el8 |
evolution-ews Rocky Linux:8 | All versions | 0:3.28.5-10.el8 |
Products include Debian Debian Linux, Gnome Evolution-Data-Server.
How do I fix CVE-2020-16117?
Upgrade to a fixed version.
Is CVE-2020-16117 being exploited?
There is no known exploitation of CVE-2020-16117 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as ALSA-2021:1752, DEBIAN-CVE-2020-16117, DLA-2309-1, GHSA-j89v-2w65-5qmq, OESA-2022-1628, RHSA-2021:1752 and 2 more.