Memory corruption via PKCS15 SIM parser double-free
Published Jul 4, 2023 · Updated Aug 2, 2024
Double-free memory corruption in Qualcomm Snapdragon modem firmware allows physically proximate attackers to corrupt memory via PKCS15 SIM files. The modem's PKCS15 SIM-file parser releases the same allocation twice while decoding attacker-controlled file content. Exploitation requires a crafted physical SIM presented to an affected chipset and can compromise modem confidentiality, integrity, and availability.
Summary
What happened
Double-free memory corruption in Qualcomm Snapdragon modem firmware allows physically proximate attackers to corrupt memory via PKCS15 SIM files. The modem's PKCS15 SIM-file parser releases the same allocation twice while decoding attacker-controlled file content. Exploitation requires a crafted physical SIM presented to an affected chipset and can compromise modem confidentiality, integrity, and availability.
The record
- CVE
- CVE-2023-21629
- Published
- Jul 4, 2023
- Updated
- Aug 2, 2024
- Vendor
- Qualcomm
- Product
- Robotics RB3 Platform Firmware
- Classifications
- CWE-415, T1200
- Attack vector
- physical
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 4, 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=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
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Technologies
Your stack
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Your stack
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