Cloud Vulnerability DB
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Vulnerability DatabaseCVE-2019-25048
CVE-2019-25048:
NixOS vulnerability analysis and mitigation
Overview
LibreSSL versions 2.9.1 through 3.2.1 contain a heap-based buffer over-read vulnerability in the do_print_ex function, which is called from asn1_item_print_ctx and ASN1_item_print functions. The vulnerability was discovered and reported through the OSS-Fuzz program (OSS-Fuzz Report).
Technical details
The vulnerability is classified as a heap-buffer-overflow READ 1 issue that occurs in the do_print_ex function, which is called through the execution chain of asn1_item_print_ctx and ASN1_item_print. The issue has been assigned a MEDIUM severity rating (OSS-Fuzz Report).
Impact
The heap-based buffer over-read vulnerability could potentially lead to information disclosure or program crashes when processing malformed input data (NVD).
Exploitability
While the vulnerability requires processing of specially crafted input to trigger the heap-buffer-overflow, no public exploits have been identified in the wild (OSS-Fuzz Report).
Mitigation and workarounds
The vulnerability has been fixed in a subsequent release after LibreSSL 3.2.1. Users should upgrade to a patched version of LibreSSL to mitigate this vulnerability (NVD).
Additional resources
Source: This report was generated using AI
Related NixOS vulnerabilities:
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