{"id":"CVE-2009-5155","details":"In the GNU C Library (aka glibc or libc6) before 2.28, parse_reg_exp in posix/regcomp.c misparses alternatives, which allows attackers to cause a denial of service (assertion failure and application exit) or trigger an incorrect result by attempting a regular-expression match.","modified":"2026-01-27T04:10:07.729736Z","published":"2019-02-26T02:29:00Z","withdrawn":"2026-01-27T04:10:07.729736Z","related":["SUSE-SU-2019:1102-1","SUSE-SU-2019:1877-1","SUSE-SU-2019:1958-1","SUSE-SU-2019:1958-2","openSUSE-SU-2024:10792-1"],"references":[{"type":"FIX","url":"http://git.savannah.gnu.org/cgit/gnulib.git/commit/?id=5513b40999149090987a0341c018d05d3eea1272"},{"type":"ARTICLE","url":"https://debbugs.gnu.org/cgi/bugreport.cgi?bug=22793"},{"type":"EVIDENCE","url":"https://debbugs.gnu.org/cgi/bugreport.cgi?bug=32806"},{"type":"EVIDENCE","url":"https://debbugs.gnu.org/cgi/bugreport.cgi?bug=34238"},{"type":"FIX","url":"https://security.netapp.com/advisory/ntap-20190315-0002/"},{"type":"REPORT","url":"https://sourceware.org/bugzilla/show_bug.cgi?id=11053"},{"type":"REPORT","url":"https://sourceware.org/bugzilla/show_bug.cgi?id=18986"},{"type":"WEB","url":"https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E"},{"type":"WEB","url":"https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=eb04c21373e2a2885f3d52ff192b0499afe3c672"},{"type":"WEB","url":"https://support.f5.com/csp/article/K64119434"},{"type":"WEB","url":"https://support.f5.com/csp/article/K64119434?utm_source=f5support&amp%3Butm_medium=RSS"}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}