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Vulnerability DatabaseCVE-2020-36332

CVE-2020-36332: 
NixOS vulnerability analysis and mitigation

Overview

CVE-2020-36332 is a vulnerability discovered in libwebp versions prior to 1.0.1. The flaw involves excessive memory allocation when reading files, which was disclosed and addressed in late 2020 (NVD, Debian).

Technical details

The vulnerability has been assigned a CVSS score of 7.5 (HIGH) with a vector of CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. The technical issue stems from libwebp's file reading mechanism where it allocates an excessive amount of memory without proper limitations (Rapid7).

Impact

The primary impact of this vulnerability is on service availability. When successfully exploited, it could lead to a Denial of Service (DoS) condition due to the excessive memory allocation (Red Hat).

Exploitability

The vulnerability can be triggered when processing specially crafted files, requiring no user interaction or special privileges. The attack vector is network-accessible, making it relatively straightforward to exploit (NetApp).

Mitigation and workarounds

The vulnerability has been fixed in libwebp version 1.0.1 and later. The fix was implemented through a patch that addresses the memory allocation issue. Users are advised to upgrade to the patched version (Bugzilla).

Additional resources

Source: This report was generated using AI

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