Vulnerability Details : CVE-2022-29694
Potential exploit
Unicorn Engine v2.0.0-rc7 and below was discovered to contain a NULL pointer dereference via qemu_ram_free.
Vulnerability category: Memory Corruption
Products affected by CVE-2022-29694
- cpe:2.3:a:unicorn-engine:unicorn_engine:*:*:*:*:*:*:*:*
- cpe:2.3:a:unicorn-engine:unicorn_engine:2.0.0:rc1:*:*:*:*:*:*
- cpe:2.3:a:unicorn-engine:unicorn_engine:2.0.0:rc2:*:*:*:*:*:*
- cpe:2.3:a:unicorn-engine:unicorn_engine:2.0.0:rc3:*:*:*:*:*:*
- cpe:2.3:a:unicorn-engine:unicorn_engine:2.0.0:rc4:*:*:*:*:*:*
- cpe:2.3:a:unicorn-engine:unicorn_engine:2.0.0:rc5:*:*:*:*:*:*
- cpe:2.3:a:unicorn-engine:unicorn_engine:2.0.0:-:*:*:*:*:*:*
- cpe:2.3:a:unicorn-engine:unicorn_engine:2.0.0:rc6:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2022-29694
0.58%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 78 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2022-29694
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2022-29694
-
The product dereferences a pointer that it expects to be valid but is NULL.Assigned by: nvd@nist.gov (Primary)
References for CVE-2022-29694
-
https://github.com/unicorn-engine/unicorn/issues/1588
Null pointer dereference in `qemu_ram_free` when HVA malloc fails · Issue #1588 · unicorn-engine/unicorn · GitHubExploit;Issue Tracking;Third Party Advisory
-
https://github.com/unicorn-engine/unicorn/pull/1593/commits/6a879a082d4d67a5d13f1233ae0334cde0a7f844
Fix https://github.com/unicorn-engine/unicorn/issues/1588 by liyansong2018 · Pull Request #1593 · unicorn-engine/unicorn · GitHubPatch;Third Party Advisory
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https://violentbinary.github.io/posts/2-simple-analysis-of-software-virtualization-of-memory-in-unicorn-engine/
Simple Analysis of Software Virtualization of Memory in Unicorn Engine - Violent BinaryExploit;Technical Description;Third Party Advisory
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https://github.com/unicorn-engine/unicorn/commit/3d3deac5e6d38602b689c4fef5dac004f07a2e63
Fix crash when mapping a big memory and calling uc_close · unicorn-engine/unicorn@3d3deac · GitHubPatch;Third Party Advisory
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https://github.com/unicorn-engine/unicorn/pull/1593/commits/31389e59457f304be3809f9679f91a42daa7ebaa
Fix https://github.com/unicorn-engine/unicorn/issues/1588 by liyansong2018 · Pull Request #1593 · unicorn-engine/unicorn · GitHubPatch;Third Party Advisory
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