Remote code execution via unchecked HFS+ node read
Published Feb 16, 2023 · Updated Aug 2, 2024
Heap buffer overflow in ClamAV within affected Cisco security products allows remote attackers to execute code through a crafted HFS+ file. The hfsplus_fetch_node function passes attacker-controlled block reads to fmap_readn without checking that buffOffset plus readSize fits the heap node buffer. Processing requires the file to reach an enabled scan path; successful exploitation runs with the scanner's privileges, while a failed attempt can crash that process.
Summary
What happened
Heap buffer overflow in ClamAV within affected Cisco security products allows remote attackers to execute code through a crafted HFS+ file. The hfsplus_fetch_node function passes attacker-controlled block reads to fmap_readn without checking that buffOffset plus readSize fits the heap node buffer. Processing requires the file to reach an enabled scan path; successful exploitation runs with the scanner's privileges, while a failed attempt can crash that process.
The record
- CVE
- CVE-2023-20032
- Published
- Feb 16, 2023
- Updated
- Aug 2, 2024
- Vendor
- ClamAV
- Product
- Cisco Secure Endpoint Private Cloud Administration Portal
- Classifications
- CWE-120, T1203
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Feb 16, 2023CVE publishedPublication date reported by the CVE source.
- Aug 2, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=N/A
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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