Buffer overflow in Rizin
CVE-2021-43814
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.008 (56.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 56.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- Rizin
- Rizinorg Rizin — versions <= 0.3.1
Weakness classification (CWE)
References
- github.com/rizinorg/rizin/security/advisories/GHSA-hqqp-vjcm-mw8r (Third Party Advisory)
- github.com/rizinorg/rizin/issues/2083 (Third Party Advisory)
- github.com/rizinorg/rizin/commit/aa6917772d2f32e5a7daab25a46c72df0b5ea406 (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-43814?
- CVE-2021-43814 is a high-severity vulnerability in Rizin, classified under Out-of-bounds Write. CVSS score: 7.7/10. Published 2021-12-13.
- How severe is CVE-2021-43814?
- High severity. CVSS v3 base score is 7.7 out of 10.