rust-openssl provides OpenSSL bindings for the Rust programming language. From to before 0.10.78, aes::unwrap_key() contains an incorrect assertion: it checks that out.len() + 8 <= in_.len(), but this condition is reversed. The intended invariant is out.len() >= in_.len() - 8, ensuring the output buffer is large enough. Because of the inverted check, the function only accepts buffers at or below the minimum required size and rejects larger ones. If a smaller buffer is provided the function will write past the end of out by in_.len() - 8 - out.len() bytes, causing an out-of-bounds write from a safe public function. This vulnerability is fixed in 0.10.78.
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History
Tue, 28 Apr 2026 17:45:00 +0000
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| CPEs | cpe:2.3:a:rust-openssl_project:rust-openssl:*:*:*:*:*:rust:*:* | |
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cvssV3_1
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Tue, 28 Apr 2026 09:00:00 +0000
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Rust-openssl Project
Rust-openssl Project rust-openssl |
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Rust-openssl Project
Rust-openssl Project rust-openssl |
Fri, 24 Apr 2026 19:15:00 +0000
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ssvc
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Fri, 24 Apr 2026 17:30:00 +0000
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| Description | rust-openssl provides OpenSSL bindings for the Rust programming language. From to before 0.10.78, aes::unwrap_key() contains an incorrect assertion: it checks that out.len() + 8 <= in_.len(), but this condition is reversed. The intended invariant is out.len() >= in_.len() - 8, ensuring the output buffer is large enough. Because of the inverted check, the function only accepts buffers at or below the minimum required size and rejects larger ones. If a smaller buffer is provided the function will write past the end of out by in_.len() - 8 - out.len() bytes, causing an out-of-bounds write from a safe public function. This vulnerability is fixed in 0.10.78. | |
| Title | rust-openssl: Incorrect bounds assertion in aes key wrap | |
| Weaknesses | CWE-787 | |
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cvssV4_0
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-04-24T17:18:27.280Z
Updated: 2026-04-24T18:33:14.697Z
Reserved: 2026-04-22T03:53:24.406Z
Link: CVE-2026-41678
Updated: 2026-04-24T18:27:49.679Z
Status : Analyzed
Published: 2026-04-24T18:16:29.420
Modified: 2026-04-28T17:41:42.680
Link: CVE-2026-41678
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