Vulnerability Details : CVE-2021-4022
Potential exploit
A vulnerability was found in rizin. The bug involves an ELF64 binary for the HPPA architecture. When a specially crafted binarygets analysed by rizin, it causes rizin to crash by freeing an uninitialized (and potentially user controlled, depending on the build) memory address.
Products affected by CVE-2021-4022
- cpe:2.3:a:rizin:rizin:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-4022
0.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 17 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-4022
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.5
|
MEDIUM | CVSS:3.1/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-2021-4022
-
The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.Assigned by: patrick@puiterwijk.org (Secondary)
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The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-4022
-
https://github.com/rizinorg/rizin/issues/2015
CVE-2021-4022: Segfault when analyzing an ELF64 for HPPA architecture · Issue #2015 · rizinorg/rizin · GitHubExploit;Issue Tracking;Third Party Advisory
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