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Vulnerability DatabaseCVE-2021-45481

CVE-2021-45481: 
NixOS vulnerability analysis and mitigation

Overview

CVE-2021-45481 affects WebKitGTK before version 2.32.4. The vulnerability involves incorrect memory allocation in WebCore::ImageBufferCairoImageSurfaceBackend::create, which can lead to a segmentation violation and application crash. This is a distinct issue from CVE-2021-30889. The vulnerability was discovered by Chijin Zhou of ShuiMuYuLin Ltd and Tsinghua wingtecher lab (OSS Security).

Technical details

The vulnerability is characterized by an incorrect memory allocation issue in the WebCore::ImageBufferCairoImageSurfaceBackend::create component. The CVSS v3.1 base score is 6.5 (Medium), with a vector string of CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H. The vulnerability is classified as CWE-401 (Missing Release of Memory after Effective Lifetime) (NVD).

Impact

When exploited, this vulnerability can cause an application crash through a segmentation violation. The impact is primarily focused on availability, with no direct impact on confidentiality or integrity of the system (OSS Security).

Mitigation and workarounds

The vulnerability has been fixed in WebKitGTK version 2.32.4. Users are recommended to update to the latest stable version of WebKitGTK to ensure protection against this vulnerability (OSS Security).

Additional resources

Source: This report was generated using AI

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