Device crash via unchecked TRF section offset
Published May 5, 2021 · Updated Aug 3, 2024
Out-of-bounds read in Trend Micro Home Network Security 6.5.599 and earlier allows remote attackers to crash the station via a crafted TRF file. The tdts.ko parser trusts a Section 0 value as an offset into Section 2 and reads beyond valid kernel memory without checking its bounds. Exploitation requires the station to process the attacker-supplied rules file; the invalid read causes a page fault, kernel panic, and service interruption.
Summary
What happened
Out-of-bounds read in Trend Micro Home Network Security 6.5.599 and earlier allows remote attackers to crash the station via a crafted TRF file. The tdts.ko parser trusts a Section 0 value as an offset into Section 2 and reads beyond valid kernel memory without checking its bounds. Exploitation requires the station to process the attacker-supplied rules file; the invalid read causes a page fault, kernel panic, and service interruption.
The record
- CVE
- CVE-2021-31518
- Published
- May 5, 2021
- Updated
- Aug 3, 2024
- Vendor
- Trend Micro
- Product
- Trend Micro Home Network Security
- Classifications
- CWE-125, T1499
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- May 5, 2021CVE publishedPublication date reported by the CVE source.
- Aug 3, 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=6.5.599 and below
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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