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Vulnerability DatabaseCVE-2022-1249
CVE-2022-1249:
NixOS vulnerability analysis and mitigation
Overview
A NULL pointer dereference vulnerability was identified in pesign's cms_set_pw_data() function within the cms_common.c file (CVE-2022-1249). The vulnerability was discovered and disclosed in April 2022, affecting the pesign software package (NVD).
Technical details
The vulnerability occurs when the cms_set_pw_data function fails to properly handle NULL pwdata invocation from daemon.c, resulting in an explicit NULL pointer dereference. This leads to a crash when attempting to daemonize pesign (Bugzilla).
Impact
When exploited, this vulnerability causes the pesign daemon to crash due to the NULL pointer dereference, affecting all attempts to daemonize the application (Bugzilla).
Exploitability
The vulnerability requires access to the pesign daemon process to be exploited. It affects all attempts to daemonize pesign when the specific conditions are met (Bugzilla).
Mitigation and workarounds
A fix was implemented through a commit in the pesign repository that addresses the NULL pointer handling issue. The fix is available in the upstream repository through pull request #79 (Bugzilla).
Additional resources
Source: This report was generated using AI
Related NixOS vulnerabilities:
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