CVE-2018-16402 Use after free in n/a
A double free vulnerability in elfutils allows remote attackers to cause a denial of service via crafted ELF files.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2018-16402?
CVE-2018-16402 is a critical use after free vulnerability in Canonical Ubuntu Linux, published on 3 Sep 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
libelf/elf_end.c in elfutils 0.173 allows remote attackers to cause a denial of service (double free and application crash) or possibly have unspecified other impact because it tries to decompress twice.
Weakness: CWE-415
Which versions are affected by CVE-2018-16402?
It affects 7 products.
Linux distribution packages (18)
elfutils Red Hat:rhel_eus:7.6::computenode | All versions | 0:0.172-4.el7_6 |
elfutils-debuginfo Red Hat:rhel_eus:7.6::computenode | All versions | 0:0.172-4.el7_6 |
elfutils-default-yama-scope Red Hat:rhel_eus:7.6::computenode | All versions | 0:0.172-4.el7_6 |
elfutils-devel Red Hat:rhel_eus:7.6::computenode | All versions | 0:0.172-4.el7_6 |
elfutils-devel-static Red Hat:rhel_eus:7.6::computenode | All versions | 0:0.172-4.el7_6 |
elfutils-libelf Red Hat:rhel_eus:7.6::computenode | All versions | 0:0.172-4.el7_6 |
elfutils-libelf-devel Red Hat:rhel_eus:7.6::computenode | All versions | 0:0.172-4.el7_6 |
elfutils-libelf-devel-static Red Hat:rhel_eus:7.6::computenode | All versions | 0:0.172-4.el7_6 |
elfutils-libs Red Hat:rhel_eus:7.6::computenode | All versions | 0:0.172-4.el7_6 |
elfutils Red Hat:rhel_eus:7.6::server | All versions | 0:0.172-4.el7_6 |
elfutils-debuginfo Red Hat:rhel_eus:7.6::server | All versions | 0:0.172-4.el7_6 |
elfutils-default-yama-scope Red Hat:rhel_eus:7.6::server | All versions | 0:0.172-4.el7_6 |
elfutils-devel Red Hat:rhel_eus:7.6::server | All versions | 0:0.172-4.el7_6 |
elfutils-devel-static Red Hat:rhel_eus:7.6::server | All versions | 0:0.172-4.el7_6 |
elfutils-libelf Red Hat:rhel_eus:7.6::server | All versions | 0:0.172-4.el7_6 |
elfutils-libelf-devel Red Hat:rhel_eus:7.6::server | All versions | 0:0.172-4.el7_6 |
elfutils-libelf-devel-static Red Hat:rhel_eus:7.6::server | All versions | 0:0.172-4.el7_6 |
elfutils-libs Red Hat:rhel_eus:7.6::server | All versions | 0:0.172-4.el7_6 |
Products include Canonical Ubuntu Linux, Debian Debian Linux, Elfutils Project Elfutils, Opensuse Leap, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Server and 1 more.
How do I fix CVE-2018-16402?
Apply the vendor's patch.
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-2018-16402 being exploited?
There is no known exploitation of CVE-2018-16402 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as ALPINE-CVE-2018-16402, DEBIAN-CVE-2018-16402, GHSA-c337-vg7c-wfqh, RHSA-2020:1471, UBUNTU-CVE-2018-16402.