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Vulnerability DatabaseCVE-2022-28550

CVE-2022-28550: 
NixOS vulnerability analysis and mitigation

Overview

CVE-2022-28550 affects jhead version 3.06, a command-line tool for manipulating JPEG files. The vulnerability was discovered in the shellescape() function within jhead.c. When processing command inputs containing multiple '&i' or '&o' parameters, jhead fails to properly check stack buffer boundaries (GitHub Issue).

Technical details

The vulnerability is a stack buffer overflow that occurs in the shellescape() function at jhead.c:345. When the command contains multiple '&i' arguments, jhead copies strings to a stack buffer ExecString when it detects '&i' or '&o' parameters, but fails to verify the buffer boundaries. This leads to a stack buffer overflow condition when multiple '&i' parameters are provided. The vulnerability has been assigned a CVSS v3.1 base score of 9.8 CRITICAL (Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) (NVD).

Impact

The vulnerability could allow attackers to cause a buffer overflow condition, potentially leading to arbitrary code execution or denial of service. The high CVSS score indicates that successful exploitation could result in complete compromise of the affected system with no special privileges or user interaction required (NVD).

Mitigation and workarounds

A patch has been released to address the vulnerability by implementing proper boundary checks for the stack buffer. Users should upgrade to the patched version of jhead. The fix was committed in the repository (GitHub Patch).

Additional resources

Source: This report was generated using AI

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