CVE-2021-43814 Heap-based OOB write when parsing dwarf DIE info in Rizin
A heap-based out-of-bounds write in Rizin allows attackers to execute arbitrary code or cause a crash by tricking users into opening a malicious AMD64 ELF binary.
- 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
- None listed
What is CVE-2021-43814?
CVE-2021-43814 is a high-severity memory corruption vulnerability in rizinorg rizin, published on 13 Dec 2021. 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
Rizin is a UNIX-like reverse engineering framework and command-line toolset. In versions up to and including 0.3.1 there is a heap-based out of bounds write in parse_die() when reversing an AMD64 ELF binary with DWARF debug info. When a malicious AMD64 ELF binary is opened by a victim user, Rizin may crash or execute unintended actions. No workaround are known and users are advised to upgrade.
Weakness: CWE-787
Which versions are affected by CVE-2021-43814?
It affects 1 product.
Products include Rizin Rizin.
How do I fix CVE-2021-43814?
No fix has been published for CVE-2021-43814 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2021-43814 being exploited?
There is no known exploitation of CVE-2021-43814 in the wild and no public exploit code.
Other vulnerabilities in rizinorg rizin
- CVE-2024-31668 rizin before v0.6.3 is vulnerable to Improper Neutralization of Special Elements via meta_set function in librz/analysis/meta.
- CVE-2023-40022 Rizin vulnerable to Integer Overflow in C++ demangler logic
- CVE-2021-3674 Memory corruption in rizin
- CVE-2023-27590 Rizin has stack-based buffer overflow when parsing GDB registers profile files
- CVE-2022-36039 Out-of-bounds write when parsing DEX files in Rizin
Sources
Also known as GHSA-hqqp-vjcm-mw8r.