CVE-2020-27794 Use after free in radare2
A double free vulnerability in radare2 allows attackers to cause crashes or potentially execute arbitrary code via crafted binaries.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-27794?
CVE-2020-27794 is a critical use after free vulnerability in Radare Radare2, published on 19 Aug 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A double free issue was discovered in radare2 in cmd_info.c:cmd_info(). Successful exploitation could lead to modification of unexpected memory locations and potentially causing a crash.
Weakness: CWE-415
Which versions are affected by CVE-2020-27794?
It affects 1 product.
Products include Radare Radare2.
How do I fix CVE-2020-27794?
No fix has been published for CVE-2020-27794 yet. Limit exposure of the affected software until one is available.
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-2020-27794 being exploited?
There is no known exploitation of CVE-2020-27794 in the wild and no public exploit code.
Other vulnerabilities in Radare Radare2
Sources
Also known as GHSA-wjh8-mh8q-qg7h, UBUNTU-CVE-2020-27794.