Kernel-memory disclosure via IPA NAT underflow
Published Nov 26, 2024 · Updated Nov 26, 2024
Buffer over-read in Qualcomm Snapdragon IPA drivers allows local users to disclose adjacent kernel memory through the ip4_nat debugfs entry. An unsigned length calculation underflows while the driver formats a NAT entry, causing the read path to extend beyond its intended buffer. Exploitation requires local access to the exposed debugfs file on an affected Snapdragon platform; the published mechanism establishes memory disclosure.
Summary
What happened
Buffer over-read in Qualcomm Snapdragon IPA drivers allows local users to disclose adjacent kernel memory through the ip4_nat debugfs entry. An unsigned length calculation underflows while the driver formats a NAT entry, causing the read path to extend beyond its intended buffer. Exploitation requires local access to the exposed debugfs file on an affected Snapdragon platform; the published mechanism establishes memory disclosure.
The record
- CVE
- CVE-2018-5852
- Published
- Nov 26, 2024
- Updated
- Nov 26, 2024
- Vendor
- Qualcomm
- Product
- Qualcomm Snapdragon 820A Firmware
- Classifications
- CWE-126, T1005
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Nov 26, 2024CVE publishedPublication date reported by the CVE source.
- Nov 26, 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 <=*
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
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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