Out-of-bounds Read in Radare Radare2
CVE-2018-20457
In radare2 through 3.1.3, the assemble function inside libr/asm/p/asm_arm_cs.c allows attackers to cause a denial-of-service (application crash via an r_num_calc out-of-bounds read) by crafting an arm assembly input because a loop uses an incorrect index in armass.c and certain length validation is missing in armass64.c, a related issue to CVE-2018-20459.
Vulnerability class: Buffer Overflow
EPSS: 0.009 (55.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
Affected products
- Radare Radare2
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Patch, x_refsource_MISC, Vendor Advisory)
Frequently asked questions
- What is CVE-2018-20457?
- CVE-2018-20457 is a medium-severity vulnerability in Radare Radare2, classified under Out-of-bounds Read. CVSS score: 5.5/10. Published 2018-12-25.
- How severe is CVE-2018-20457?
- Medium severity. CVSS v3 base score is 5.5 out of 10.