{"action":"No fix published. Pin and monitor.","affected":[{"introduced":"0"}],"component":"glibc","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":[],"id":"tcs_01M5NDBFXHC5CMM2FZB8FKMGKM","modified_at":"2026-10-23T18:03:21.172579573Z","published_at":"2019-02-26T02:29:00.450Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2018-20796","https://security-tracker.debian.org/tracker/CVE-2018-20796"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2018-20796","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2018-20796"}],"summary":"In the GNU C Library (aka glibc or libc6) through 2.29, check_dst_limits_calc_pos_1 in posix/regexec.c has Uncontrolled Recursion, as demonstrated by '(\\227|)(\\\\1\\\\1|t1|\\\\\\2537)+' in grep."}