CVE-2019-7148 Denial of service in n/a
Remote attackers can cause denial of service via crafted ELF input triggering excessive memory allocation in libelf, though maintainers dispute severity.
- 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-2019-7148?
CVE-2019-7148 is a medium-severity denial of service vulnerability in n/a, published on 29 Jan 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
An attempted excessive memory allocation was discovered in the function read_long_names in elf_begin.c in libelf in elfutils 0.174. Remote attackers could leverage this vulnerability to cause a denial-of-service via crafted elf input, which leads to an out-of-memory exception. NOTE: The maintainers believe this is not a real issue, but instead a "warning caused by ASAN because the allocation is big. By setting ASAN_OPTIONS=allocator_may_return_null=1 and running the reproducer, nothing happens."
Weakness: CWE-770
Which versions are affected by CVE-2019-7148?
It affects 1 product.
Products include Elfutils Project Elfutils.
How do I fix CVE-2019-7148?
No fix published yet.
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-2019-7148 being exploited?
There is no known exploitation of CVE-2019-7148 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as ALPINE-CVE-2019-7148, DEBIAN-CVE-2019-7148, GHSA-67vc-2q9c-6854, UBUNTU-CVE-2019-7148.