CVE-2026-16118 HIGH

Mô tả

A flaw was found in xdgmime. A heap-based buffer overflow can be triggered in _xdg_mime_magic_parse_magic_line() in the xdgmimemagic.c file on little-endian systems when an attacker-controlled MIME magic file in a user-writable XDG data location (e.g., in the $XDG_DATA_HOME/mime/magic path) is parsed by an application performing MIME type detection (e.g., via g_content_type_guess()). When performing byte-swap, incorrect pointer arithmetic on the write side causes an out-of-bounds write of 2 bytes, resulting in an application crash or memory corruption.

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Tài liệu tham khảo

• [secalert@redhat.com] https://access.redhat.com/errata/RHSA-2026:64799
• [secalert@redhat.com] https://access.redhat.com/errata/RHSA-2026:64800
• [secalert@redhat.com] https://access.redhat.com/errata/RHSA-2026:66451
• [secalert@redhat.com] https://access.redhat.com/errata/RHSA-2026:67956
• [secalert@redhat.com] https://access.redhat.com/errata/RHSA-2026:70636
• [secalert@redhat.com] https://access.redhat.com/errata/RHSA-2026:71403
• [secalert@redhat.com] https://access.redhat.com/errata/RHSA-2026:71404
• [secalert@redhat.com] https://access.redhat.com/errata/RHSA-2026:71405
• [secalert@redhat.com] https://access.redhat.com/errata/RHSA-2026:72394
• [secalert@redhat.com] https://access.redhat.com/errata/RHSA-2026:72395
• [secalert@redhat.com] https://access.redhat.com/security/cve/CVE-2026-16118
• [secalert@redhat.com] https://bugzilla.redhat.com/show_bug.cgi?id=2501732
• [secalert@redhat.com] https://gitlab.freedesktop.org/xdg/xdgmime/-/work_items/41
• [134c704f-9b21-4f2e-91b3-4a467353bcc0] https://gitlab.freedesktop.org/xdg/xdgmime/-/work_items/41

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