Unauthenticated DoS via DLP bounds read
Published Feb 5, 2020 · Updated Nov 15, 2024
Out-of-bounds read in the DLP module in ClamAV 0.102.1 and 0.102.0 allows remote attackers to cause a scanning-process crash via crafted email files. Improper bounds checking of an unsigned variable reads beyond the intended buffer when optional credit-card DLP processing handles malformed input. The attack requires the optional DLP feature to be enabled and access to submit a crafted file; the consequence is a ClamAV crash and denial of service without reported confidentiality or integrity impact.
Summary
What happened
Out-of-bounds read in the DLP module in ClamAV 0.102.1 and 0.102.0 allows remote attackers to cause a scanning-process crash via crafted email files. Improper bounds checking of an unsigned variable reads beyond the intended buffer when optional credit-card DLP processing handles malformed input. The attack requires the optional DLP feature to be enabled and access to submit a crafted file; the consequence is a ClamAV crash and denial of service without reported confidentiality or integrity impact.
The record
- CVE
- CVE-2020-3123
- Published
- Feb 5, 2020
- Updated
- Nov 15, 2024
- Vendor
- ClamAV
- Product
- ClamAV
- Classifications
- CWE-125, T1499
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Feb 5, 2020CVE publishedPublication date reported by the CVE source.
- Nov 15, 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=0.102.1
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Public exploit references
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Technologies
Your stack
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Your stack
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