CVE-2019-3817 Use after free in libcomps
An attacker can trigger a use-after-free in libcomps by providing a crafted XML file, potentially leading to application crashes or arbitrary code execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2019-3817?
CVE-2019-3817 is a high-severity use after free vulnerability in libcomps, published on 27 Mar 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
A use-after-free flaw has been discovered in libcomps before version 0.1.10 in the way ObjMRTrees are merged. An attacker, who is able to make an application read a crafted comps XML file, may be able to crash the application or execute malicious code.
Weakness: CWE-416
Which versions are affected by CVE-2019-3817?
It affects 1 product.
Linux distribution packages (7)
libcomps Red Hat:rhel_extras_other:7 | All versions | 0:0.1.8-13.el7 |
libcomps-debuginfo Red Hat:rhel_extras_other:7 | All versions | 0:0.1.8-13.el7 |
libcomps-devel Red Hat:rhel_extras_other:7 | All versions | 0:0.1.8-13.el7 |
libcomps-doc Red Hat:rhel_extras_other:7 | All versions | 0:0.1.8-13.el7 |
python-libcomps-doc Red Hat:rhel_extras_other:7 | All versions | 0:0.1.8-13.el7 |
python2-libcomps Red Hat:rhel_extras_other:7 | All versions | 0:0.1.8-13.el7 |
libcomps SUSE:Package Hub 15 | All versions | 0.1.8-bp150.3.3.1 |
Products include Rpm Libcomps.
How do I fix CVE-2019-3817?
Upgrade to a fixed version.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2019-3817 being exploited?
There is no known exploitation of CVE-2019-3817 in the wild and no public exploit code.
Sources
Also known as GHSA-3rh7-494q-3mjq, RHSA-2019:3898, openSUSE-SU-2019:0323-1, openSUSE-SU-2019:0328-1, openSUSE-SU-2024:10929-1.