Remote out-of-bounds read via unchecked HMAC padding length
Published Jan 28, 2020 · Updated Aug 6, 2024
Out-of-bounds read in wolfSSL CyaSSL 2.5.0 through 2.9.3 allows remote attackers to trigger invalid memory access via a crafted SSL 3.0 HMAC. The SSL 3.0 HMAC verification path fails to validate the record padding length after authentication failure and reads beyond the input buffer. Exposure requires an endpoint that processes attacker-controlled SSL 3.0 records; public sources do not specify whether the read causes disclosure, a crash, or another consequence.
Summary
What happened
Out-of-bounds read in wolfSSL CyaSSL 2.5.0 through 2.9.3 allows remote attackers to trigger invalid memory access via a crafted SSL 3.0 HMAC. The SSL 3.0 HMAC verification path fails to validate the record padding length after authentication failure and reads beyond the input buffer. Exposure requires an endpoint that processes attacker-controlled SSL 3.0 records; public sources do not specify whether the read causes disclosure, a crash, or another consequence.
The record
- CVE
- CVE-2014-2897
- Published
- Jan 28, 2020
- Updated
- Aug 6, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-125
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jan 28, 2020CVE publishedPublication date reported by the CVE source.
- Aug 6, 2024Record updatedLatest update available in the CVE record.
Exploitability
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What is affected?
Affected products and versions are unavailable in this record.
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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