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Vulnerability DatabaseCVE-2025-11021
CVE-2025-11021:
Rocky Linux vulnerability analysis and mitigation
Overview
A vulnerability (CVE-2025-11021) was discovered in the cookie date handling logic of the libsoup HTTP library, which is widely used by GNOME and other applications for web communication. The vulnerability was disclosed on September 26, 2025, affecting the libsoup3 package. When processing cookies with specially crafted expiration dates, the library may perform an out-of-bounds memory read (NVD, Red Hat).
Technical details
The vulnerability is classified as CWE-125 (Out-of-bounds Read) and has been assigned a CVSS v3.1 base score of 7.5 (HIGH) with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. The flaw specifically occurs in the soupdatetimetostring() function when formatting crafted cookie expiration dates, where improper bounds checking can lead to unintended memory access (NVD).
Impact
This vulnerability could result in unintended disclosure of memory contents, potentially exposing sensitive information from processes using libsoup. In production builds, the impact is expected to be limited to incorrect output rather than consistent crashes (Red Hat).
Additional resources
Source: This report was generated using AI
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