{"id":"CLSA-2026-1782810569","summary":"Fix CVE(s): CVE-2026-55693, CVE-2026-55892, CVE-2026-57455, CVE-2026-57456","details":"   * SECURITY UPDATE: out-of-bounds write parsing a crafted spell file:\n     tree_count_words() and sug_filltree() descended the word trie without\n     bounding the recursion depth, so a deeply nested trie wrote past the\n     ends of their MAXWLEN-sized arridx[], curi[] and wordcount[] arrays.\n     - debian/patches/CVE-2026-55693.patch: only descend while\n       depth \u003c MAXWLEN - 1 in both trie walkers, in src/spell.c; matches\n       upstream patch 9.2.0653.\n     - CVE-2026-55693\n   * SECURITY UPDATE: stack out-of-bounds write in dump_prefixes() when\n     dumping spell prefixes (:spelldump): the word trie was descended\n     without bounding the recursion depth, overflowing the MAXWLEN-sized\n     prefix[], arridx[] and curi[] arrays.\n     - debian/patches/CVE-2026-55892.patch: only descend while\n       depth \u003c MAXWLEN - 1, in src/spell.c; matches upstream patch\n       9.2.0662.\n     - CVE-2026-55892\n   * SECURITY UPDATE: out-of-bounds write in soundfold(): the single-byte\n     branch of spell_soundfold_sofo() wrote one result byte per input byte\n     into the MAXWLEN-sized res[] buffer with no bound, so a long word\n     overflowed it.\n     - debian/patches/CVE-2026-57455.patch: stop the translation loop once\n       ri reaches MAXWLEN - 1, in src/spell.c; matches upstream patch\n       9.2.0698.\n     - CVE-2026-57455\n   * SECURITY UPDATE: arbitrary code execution in the python and python3\n     omni-completion plugins: reconstructed class/function definitions ran\n     through exec() embedded buffer-supplied docstrings inside a triple-\n     quoted Python string literal, so a docstring containing a closing\n     triple-quote broke out of the literal and executed attacker code.\n     - debian/patches/CVE-2026-57456.patch: quote docstrings with repr()\n       instead of triple-quoting, in runtime/autoload/python3complete.vim\n       and pythoncomplete.vim; matches upstream patch 9.2.0699.\n     - CVE-2026-57456","modified":"2026-10-26T09:31:47.004921178Z","published":"2026-06-30T09:09:52Z","upstream":["CVE-2026-55693","CVE-2026-55892","CVE-2026-57455","CVE-2026-57456"],"references":[{"type":"ADVISORY","url":"https://errata.tuxcare.com/els_os/ubuntu16.04els/CLSA-2026-1782810569.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-55693"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-55892"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-57455"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-57456"}],"affected":[{"package":{"name":"vim","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/vim?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3:7.4.1689-3ubuntu1.5+tuxcare.els70"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1782810569.json"}},{"package":{"name":"vim-athena","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/vim-athena?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3:7.4.1689-3ubuntu1.5+tuxcare.els70"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1782810569.json"}},{"package":{"name":"vim-athena-py2","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/vim-athena-py2?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3:7.4.1689-3ubuntu1.5+tuxcare.els70"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1782810569.json"}},{"package":{"name":"vim-common","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/vim-common?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3:7.4.1689-3ubuntu1.5+tuxcare.els70"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1782810569.json"}},{"package":{"name":"vim-doc","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/vim-doc?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3:7.4.1689-3ubuntu1.5+tuxcare.els70"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1782810569.json"}},{"package":{"name":"vim-gnome","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/vim-gnome?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3:7.4.1689-3ubuntu1.5+tuxcare.els70"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1782810569.json"}},{"package":{"name":"vim-gnome-py2","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/vim-gnome-py2?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3:7.4.1689-3ubuntu1.5+tuxcare.els70"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1782810569.json"}},{"package":{"name":"vim-gtk","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/vim-gtk?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3:7.4.1689-3ubuntu1.5+tuxcare.els70"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1782810569.json"}},{"package":{"name":"vim-gtk-py2","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/vim-gtk-py2?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3:7.4.1689-3ubuntu1.5+tuxcare.els70"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1782810569.json"}},{"package":{"name":"vim-gtk3","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/vim-gtk3?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3:7.4.1689-3ubuntu1.5+tuxcare.els70"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1782810569.json"}},{"package":{"name":"vim-gtk3-py2","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/vim-gtk3-py2?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3:7.4.1689-3ubuntu1.5+tuxcare.els70"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1782810569.json"}},{"package":{"name":"vim-gui-common","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/vim-gui-common?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3:7.4.1689-3ubuntu1.5+tuxcare.els70"}]}],"database_specific":{"source":"https://github.com/cloudli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