CVE-2018-20456: radare radare2 Out-of-bounds Read
CVSS: 5.5v3.0MediumModified
AliasesUBUNTU-CVE-2018-20456
Published 25-12-2018Last modified 17-09-2024
Vulnerability summary
CVE-2018-20456 is a medium (CVSS 5.5) Out-of-bounds Read vulnerability in radare radare2. EPSS estimates a 1.00% chance of exploitation in the next 30 days, higher than 62.3% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
5.5/10
010
Medium · v3.0 (NVD)EPSS score
1.00%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Timeline
- 25-12-2018PublishedVulnerability first disclosed.
- 17-09-2024Last modifiedVulnerability information updated.
Description
In radare2 prior to 3.1.1, the parseOperand function inside libr/asm/p/asm_x86_nz.c may allow attackers to cause a denial of service (application crash in libr/util/strbuf.c via a stack-based buffer over-read) by crafting an input file, a related issue to CVE-2018-20455.
CVSS metrics
3 scores · 2 sources · 2 versionsMedium 5.5Preferred score · NVD (NIST)
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HSourcesAll 2 agree
- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Medium 4.3Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
1.00%
Chance of exploitation in the next 30 days
Percentile
62%
Versus all other CVEs
30-day change
0.00 pp
From 1.00% on 19-09-2026
19-09-202619-10-2026
EPSS score1.00%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundRadare2
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Radare1 product
- radare2< 3.1.1
Ubuntu1 product
- radare2All versions (No fix recorded)
2 vendors · 2 products
References
4 links- github.com/radare/radare2/commit/9b46d38dd3c4de6048a488b655c7319f845af185X Refsource MISCPatchThird Party AdvisoryREPORT