CVE-2019-19590 Use after free in n/a
Remote attackers can trigger a use-after-free via crafted input in radare2, potentially leading to arbitrary code execution or application crashes.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2019-19590?
CVE-2019-19590 is a high-severity use after free vulnerability in Radare Radare2, published on 5 Dec 2019. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
In radare2 through 4.0, there is an integer overflow for the variable new_token_size in the function r_asm_massemble at libr/asm/asm.c. This integer overflow will result in a Use-After-Free for the buffer tokens, which can be filled with arbitrary malicious data after the free. This allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via crafted input.
Which versions are affected by CVE-2019-19590?
It affects 1 product.
Products include Radare Radare2.
How do I fix CVE-2019-19590?
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-2019-19590 being exploited?
There is no known exploitation of CVE-2019-19590 in the wild and no public exploit code.
Other vulnerabilities in Radare Radare2
Sources
Also known as GHSA-67rp-x49w-2277, UBUNTU-CVE-2019-19590.