Vulnerability Details : CVE-2018-20456
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.
Vulnerability category: Denial of service
Products affected by CVE-2018-20456
- cpe:2.3:a:radare:radare2:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-20456
0.07%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 30 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-20456
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:N/A:P |
8.6
|
2.9
|
NIST | |
|
5.5
|
MEDIUM | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
NIST |
CWE ids for CVE-2018-20456
-
The product reads data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-20456
-
https://github.com/radare/radare2/issues/12372
AddressSanitizer: stack-buffer-overflow at libr/util/strbuf.c:47 · Issue #12372 · radare/radare2 · GitHubExploit;Third Party Advisory
-
https://github.com/radare/radare2/commit/9b46d38dd3c4de6048a488b655c7319f845af185
Fix #12372 and #12373 - Crash in x86 assembler (#12380) · radare/radare2@9b46d38 · GitHubPatch;Third Party Advisory
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