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CVE-2023-35784

Good to know:

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Date: June 15, 2023

A double free or use after free could occur after SSL_clear in OpenBSD 7.2 before errata 026 and 7.3 before errata 004, and in LibreSSL before 3.6.3 and 3.7.x before 3.7.3. NOTE: OpenSSL is not affected.

Language: C

Severity Score

Related Resources (9)

https://ftp.openbsd.org/pub/OpenBSD/patches/7.2/common/026_ssl.patch.sig
https://github.com/libressl/openbsd/commit/96094ca8757b95298f49d65c813f303bd514b27b
https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-3.6.3-relnotes.txt
https://github.com/libressl/openbsd/commit/e42d8f4b21a8a498e2eabbffe4c7b7d4ef7cec54
https://nvd.nist.gov/vuln/detail/CVE-2023-35784
https://github.com/libressl/openbsd/commit/1d6680b3682f8caba78c627dee60c76da6e20dd7
https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-3.7.3-relnotes.txt
https://ftp.openbsd.org/pub/OpenBSD/patches/7.3/common/004_ssl.patch.sig
https://www.mend.io/vulnerability-database/CVE-2023-35784

Severity Score

Weakness Type (CWE)

Double Free

CWE-415

Use After Free

CWE-416

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

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