9.8

CVSS Score

3.1

-

CVSS Score

Basic Information

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CVE-2022-46293

CVE-2022-46293: Open Babel has out-of-bounds write in MOPAC translationVectors[] (FINAL POINT)

Multiple out-of-bounds write vulnerabilities exist in the translationVectors parsing functionality in multiple supported formats of Open Babel 3.1.1 and master commit 530dbfa3. A specially-crafted malformed file can lead to arbitrary code execution. An attacker can provide a malicious file to trigger this vulnerability.This vulnerability affects the MOPAC file format, inside the Final Point and Derivatives section

(GitHub Advisory)

Miggo Vulnerability Database

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CVE-2022-46293

CVE-2022-46293:

9.8

CVSS Score

3.1

-

CVSS Score

Basic Information

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Technical Details

SSVC / BOD 26-04 ↗

Exploitation NoneAutomatable NoTech Impact Total

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Package Name	Ecosystem	Vulnerable Versions	First Patched Version
openbabel	pip	< 3.2.0	3.2.0

Technical Details

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Root Cause Analysis

The vulnerability, identified as CVE-2022-46293, is an out-of-bounds write in the MOPAC output file parser of Open Babel. The provided patch commit 40e852138f21d586b7ccdce6329e7b23a87168bb addresses this and several other similar vulnerabilities. The analysis of the patch reveals that the file src/formats/mopacformat.cpp was modified to fix the issue. Specifically, within the OpenBabel::MOPACFormat::ReadMolecule function, a check numTranslationVectors < 3 was added before writing to the translationVectors array. This change is located in the code block responsible for parsing the "FINAL POINT AND DERIVATIVES" section of a MOPAC output file. The added condition prevents more than three translation vectors from being written, thus mitigating the buffer overflow. The associated test file cve-2022-46293.out confirms that this section of the code is targeted by the fix. Therefore, the OpenBabel::MOPACFormat::ReadMolecule function is the vulnerable function that would appear in a runtime profile when this vulnerability is triggered.

Vulnerable functions

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WAF Protection Rules

WAF Rule

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Reasoning

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