Source: mupdf Version: 1.25.1+ds1-7 Severity: important Tags: security upstream Forwarded: https://bugs.ghostscript.com/show_bug.cgi?id=708720 X-Debbugs-Cc: [email protected], Debian Security Team <[email protected]> Control: found -1 1.25.1+ds1-6
Hi, The following vulnerability was published for mupdf. CVE-2025-55780[0]: | A null pointer dereference occurs in the function | break_word_for_overflow_wrap() in MuPDF 1.26.4 when rendering a | malformed EPUB document. Specifically, the function calls | fz_html_split_flow() to split a FLOW_WORD node, but does not check | if node->next is valid before accessing node->next->overflow_wrap, | resulting in a crash if the split fails or returns a partial node | chain. If you fix the vulnerability please also make sure to include the CVE (Common Vulnerabilities & Exposures) id in your changelog entry. For further information see: [0] https://security-tracker.debian.org/tracker/CVE-2025-55780 https://www.cve.org/CVERecord?id=CVE-2025-55780 [1] https://bugs.ghostscript.com/show_bug.cgi?id=708720 [2] https://cgit.ghostscript.com/cgi-bin/cgit.cgi/mupdf.git/commit/?id=bdd5d241748807378a78a622388e0312332513c5 Please adjust the affected versions in the BTS as needed. Regards, Salvatore
