{"id":"CVE-2018-19591","aliases":["BELL-CVE-2018-19591","CLSA-2026-1776605836","CLSA-2026-1776606103","DEBIAN-CVE-2018-19591","EUVD-2018-11280","GHSA-x2fw-rj3g-6m95","UBUNTU-CVE-2018-19591","USN-4416-1","openSUSE-SU-2024:10792-1"],"status":"published","title":"In the GNU C Library (aka glibc or libc6) through 2.28, attempting to resolve a crafted hostname...","description":"In the GNU C Library (aka glibc or libc6) through 2.28, attempting to resolve a crafted hostname via getaddrinfo() leads to the allocation of a socket descriptor that is not closed. This is related to the if_nametoindex() function.","severity":{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.05532,"percentile":0.92878,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-20","CWE-404"],"published":"2018-12-04T16:00:00Z","modified":"2026-10-24T10:30:53Z","fixes":[{"ecosystem":"Debian:12","package":"glibc","fixed_in":["2.28-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"glibc","fixed_in":["2.28-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"glibc","fixed_in":["2.28-1"],"sources":["osv"]},{"ecosystem":"Ubuntu:18.04:LTS","package":"glibc","fixed_in":["2.27-3ubuntu1.2"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"TuxCare:CentOS:6","package":"glibc","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.12-2.215.el6.tuxcare.els12"}]}],"bundled":3},{"source":"osv","ecosystem":"TuxCare:CentOS:6","package":"glibc-common","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.12-2.215.el6.tuxcare.els12"}]}],"bundled":3},{"source":"osv","ecosystem":"TuxCare:CentOS:6","package":"glibc-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.12-2.215.el6.tuxcare.els12"}]}],"bundled":3},{"source":"osv","ecosystem":"TuxCare:CentOS:6","package":"glibc-headers","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.12-2.215.el6.tuxcare.els12"}]}],"bundled":3},{"source":"osv","ecosystem":"TuxCare:CentOS:6","package":"glibc-static","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.12-2.215.el6.tuxcare.els12"}]}],"bundled":3},{"source":"osv","ecosystem":"TuxCare:CentOS:6","package":"glibc-utils","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.12-2.215.el6.tuxcare.els12"}]}],"bundled":3},{"source":"osv","ecosystem":"TuxCare:CentOS:6","package":"nscd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.12-2.215.el6.tuxcare.els12"}]}],"bundled":3},{"source":"osv","ecosystem":"TuxCare:OracleLinux:6","package":"glibc","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.12-2.215.el6.tuxcare.els12"}]}],"bundled":3},{"source":"osv","ecosystem":"TuxCare:OracleLinux:6","package":"glibc-common","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.12-2.215.el6.tuxcare.els12"}]}],"bundled":3},{"source":"osv","ecosystem":"TuxCare:OracleLinux:6","package":"glibc-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.12-2.215.el6.tuxcare.els12"}]}],"bundled":3},{"source":"osv","ecosystem":"TuxCare:OracleLinux:6","package":"glibc-headers","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.12-2.215.el6.tuxcare.els12"}]}],"bundled":3},{"source":"osv","ecosystem":"TuxCare:OracleLinux:6","package":"glibc-static","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.12-2.215.el6.tuxcare.els12"}]}],"bundled":3},{"source":"osv","ecosystem":"TuxCare:OracleLinux:6","package":"glibc-utils","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.12-2.215.el6.tuxcare.els12"}]}],"bundled":3},{"source":"osv","ecosystem":"TuxCare:OracleLinux:6","package":"nscd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.12-2.215.el6.tuxcare.els12"}]}],"bundled":3},{"source":"osv","ecosystem":"Debian:12","package":"glibc","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.28-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"glibc","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.28-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"glibc","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.28-1"}]}]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"glibc","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.27-3ubuntu1.2"}]}],"versions":["2.26-0ubuntu2","2.26-0ubuntu2.1","2.27-0ubuntu2","2.27-0ubuntu3","2.27-3ubuntu1"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"glibc","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.23-0ubuntu11.2"}]}],"versions":["2.21-0ubuntu4","2.21-0ubuntu5","2.21-0ubuntu6","2.23-0ubuntu1","2.23-0ubuntu2","2.23-0ubuntu3","2.23-0ubuntu4","2.23-0ubuntu5","2.23-0ubuntu6","2.23-0ubuntu7","2.23-0ubuntu9","2.23-0ubuntu10","2.23-0ubuntu11"],"bundled":11},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"glibc","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.27-3ubuntu1.2"}]}],"versions":["2.26-0ubuntu2","2.26-0ubuntu2.1","2.27-0ubuntu2","2.27-0ubuntu3","2.27-3ubuntu1"],"bundled":11},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"glibc","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.34-1.2"}]}],"bundled":34}],"products":[{"vendor":"fedoraproject","product":"fedora"},{"vendor":"gnu","product":"glibc"},{"vendor":"siemens","product":"simatic s7-1500 cpu 1518-4 pn/dp mfp"},{"vendor":"siemens","product":"simatic s7-1500 cpu 1518f-4 pn/dp mfp"},{"vendor":"siemens","product":"siplus s7-1500 cpu 1518-4 pn/dp mfp"}],"references":[{"url":"https://sourceware.org/git/?p=glibc.git%3Ba=blob_plain%3Bf=NEWS%3Bhb=HEAD","tags":["x_refsource_CONFIRM","x_transferred","web"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BO7WHN52GFMC5F2I2232GFIPSSXWFV7G/","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","web"]},{"url":"http://www.securityfocus.com/bid/106037","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry","advisory"]},{"url":"https://sourceware.org/bugzilla/show_bug.cgi?id=23927","tags":["x_refsource_CONFIRM","x_transferred","Exploit","Issue Tracking","Third Party Advisory","report"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M52KE4YR3GNMHQUOS3DKAGZD5TQ5D5UH/","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","web"]},{"url":"https://security.gentoo.org/glsa/201903-09","tags":["vendor-advisory","x_refsource_GENTOO","x_transferred","Third Party Advisory","advisory"]},{"url":"http://www.securitytracker.com/id/1042174","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","Third Party Advisory","VDB Entry","advisory"]},{"url":"https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Ba=commitdiff%3Bh=d527c860f5a3f0ed687bd03f0cb464612dc23408","tags":["x_refsource_CONFIRM","x_transferred","web"]},{"url":"https://security.netapp.com/advisory/ntap-20190321-0003/","tags":["x_refsource_CONFIRM","x_transferred","advisory"]},{"url":"https://security.gentoo.org/glsa/201908-06","tags":["vendor-advisory","x_refsource_GENTOO","x_transferred","advisory"]},{"url":"https://usn.ubuntu.com/4416-1/","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred","web"]},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-398330.html","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-19591"},{"url":"https://sourceware.org/git/?p=glibc.git;a=blob_plain;f=NEWS;hb=HEAD"},{"url":"https://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=d527c860f5a3f0ed687bd03f0cb464612dc23408"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BO7WHN52GFMC5F2I2232GFIPSSXWFV7G"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M52KE4YR3GNMHQUOS3DKAGZD5TQ5D5UH"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BO7WHN52GFMC5F2I2232GFIPSSXWFV7G"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/M52KE4YR3GNMHQUOS3DKAGZD5TQ5D5UH"},{"url":"https://security.netapp.com/advisory/ntap-20190321-0003"},{"url":"https://usn.ubuntu.com/4416-1"},{"url":"https://github.com/advisories/GHSA-x2fw-rj3g-6m95"},{"url":"https://docs.bell-sw.com/security/cves/CVE-2018-19591","tags":["advisory"]},{"url":"https://errata.tuxcare.com/els_os/centos6els/CLSA-2026-1776605836.html","tags":["advisory"]},{"url":"https://errata.tuxcare.com/els_os/oraclelinux6els/CLSA-2026-1776606103.html","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2018-19591","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2018-19591","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-4416-1","tags":["advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2018-19591","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2017-12133","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2017-18269","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2018-6485","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2018-11236","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2018-11237","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2019-9169","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2019-19126","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-1751","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-1752","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-10029","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2009-5064","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2009-5155","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2010-3192","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-5180","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-10228","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-10739","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-6261","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-6323","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-1000366","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-1000408","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-12132","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-12133","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-15670","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-16997","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-17426","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-18269","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-1000001","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-11236","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-11237","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-19591","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-6485","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-19126","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-25013","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-7309","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-9169","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-10029","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-1752","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-27618","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-29562","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-29573","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-6096","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-27645","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-3326","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-33574","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2018-19591","description":"In the GNU C Library (aka glibc or libc6) through 2.28, attempting to resolve a crafted hostname via getaddrinfo() leads to the allocation of a socket descriptor that is not closed. This is related to the if_nametoindex() function.","status":"published","published":"2018-12-04T16:00:00Z","modified":"2026-10-14T06:30:40.649Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-404"],"updated_at":"2026-11-02T14:35:02.966615Z"}],"euvd":[{"id":"EUVD-2018-11280","description":"In the GNU C Library (aka glibc or libc6) through 2.28, attempting to resolve a crafted hostname via getaddrinfo() leads to the allocation of a socket descriptor that is not closed. This is related to the if_nametoindex() function.","status":"published","published":"2018-12-04T16:00:00Z","modified":"2026-10-14T06:30:40Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T17:27:17.902641Z"}],"ghsa":[{"id":"GHSA-x2fw-rj3g-6m95","title":"In the GNU C Library (aka glibc or libc6) through 2.28, attempting to resolve a crafted hostname...","description":"In the GNU C Library (aka glibc or libc6) through 2.28, attempting to resolve a crafted hostname via getaddrinfo() leads to the allocation of a socket descriptor that is not closed. This is related to the if_nametoindex() function.","status":"published","published":"2022-05-13T01:25:25Z","modified":"2026-10-14T09:32:18Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-20","CWE-404"],"updated_at":"2026-11-02T15:13:23.530725Z"}],"nvd":[{"id":"CVE-2018-19591","description":"In the GNU C Library (aka glibc or libc6) through 2.28, attempting to resolve a crafted hostname via getaddrinfo() leads to the allocation of a socket descriptor that is not closed. This is related to the if_nametoindex() function.","status":"published","published":"2018-12-04T16:29:00.48Z","modified":"2026-10-14T07:16:43.377Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"},{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-20","CWE-404"],"updated_at":"2026-11-02T14:04:49.995593Z"}],"osv":[{"id":"BELL-CVE-2018-19591","title":"CVE-2018-19591 does not affect BellSoft software","status":"withdrawn","published":"2018-12-04T16:29:00Z","modified":"2026-01-26T09:46:06.81016Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:28:14.701973Z"},{"id":"CVE-2018-19591","description":"In the GNU C Library (aka glibc or libc6) through 2.28, attempting to resolve a crafted hostname via getaddrinfo() leads to the allocation of a socket descriptor that is not closed. This is related to the if_nametoindex() function.","status":"published","published":"2018-12-04T16:29:00.48Z","modified":"2026-10-24T10:30:53.901454212Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:08.834469Z"},{"id":"DEBIAN-CVE-2018-19591","description":"In the GNU C Library (aka glibc or libc6) through 2.28, attempting to resolve a crafted hostname via getaddrinfo() leads to the allocation of a socket descriptor that is not closed. This is related to the if_nametoindex() function.","status":"published","published":"2018-12-04T16:29:00.48Z","modified":"2026-10-15T07:47:28.580147063Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:30.57382Z"},{"id":"UBUNTU-CVE-2018-19591","description":"In the GNU C Library (aka glibc or libc6) through 2.28, attempting to resolve a crafted hostname via getaddrinfo() leads to the allocation of a socket descriptor that is not closed. This is related to the if_nametoindex() function.","status":"published","published":"2018-12-04T16:29:00Z","modified":"2026-04-22T11:51:22.034552Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:54:17.91743Z"},{"id":"CLSA-2026-1776605836","title":"glibc: Fix of 3 CVEs","description":"- CVE-2018-6485: fix integer overflows in memalign and malloc\n- CVE-2018-1000001: fix realpath buffer underflow via getcwd\n- CVE-2018-19591: fix if_nametoindex descriptor leak","status":"published","published":"2026-04-21T17:13:08Z","modified":"2026-10-21T10:47:49.71141544Z","updated_at":"2026-11-02T15:43:44.009773Z"},{"id":"CLSA-2026-1776606103","title":"glibc: Fix of 3 CVEs","description":"- CVE-2018-6485: fix integer overflows in memalign and malloc\n- CVE-2018-1000001: fix realpath buffer underflow via getcwd\n- CVE-2018-19591: fix if_nametoindex descriptor leak","status":"published","published":"2026-04-19T13:41:47Z","modified":"2026-10-21T10:48:17.887815095Z","updated_at":"2026-11-02T15:43:44.009773Z"},{"id":"openSUSE-SU-2024:10792-1","title":"glibc-2.34-1.2 on GA media","description":"These are all security issues fixed in the glibc-2.34-1.2 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T03:52:58.912445Z","updated_at":"2026-11-02T16:58:34.487567Z"},{"id":"USN-4416-1","title":"glibc vulnerabilities","description":"Florian Weimer discovered that the GNU C Library incorrectly handled\ncertain memory operations. A remote attacker could use this issue to cause\nthe GNU C Library to crash, resulting in a denial of service, or possibly\nexecute arbitrary code. This issue only affected Ubuntu 16.04 LTS.\n(CVE-2017-12133)\n\nIt was discovered that the GNU C Library incorrectly handled certain\nSSE2-optimized memmove operations. A remote attacker could use this issue\nto cause the GNU C Library to crash, resulting in a denial of service, or\npossibly execute arbitrary code. This issue only affected Ubuntu 16.04 LTS.\n(CVE-2017-18269)\n\nIt was discovered that the GNU C Library incorrectly handled certain\npathname operations. A remote attacker could use this issue to cause the\nGNU C Library to crash, resulting in a denial of service, or possibly\nexecute arbitrary code. This issue only affected Ubuntu 18.04 LTS.\n(CVE-2018-11236)\n\nIt was discovered that the GNU C Library incorrectly handled certain\nAVX-512-optimized mempcpy operations. A remote attacker could use this\nissue to cause the GNU C Library to crash, resulting in a denial of\nservice, or possibly execute arbitrary code. This issue only affected\nUbuntu 18.04 LTS. (CVE-2018-11237)\n\nIt was discovered that the GNU C Library incorrectly handled certain\nhostname loookups. A remote attacker could use this issue to cause the GNU\nC Library to crash, resulting in a denial of service, or possibly execute\narbitrary code. This issue only affected Ubuntu 18.04 LTS. (CVE-2018-19591)\n\nJakub Wilk discovered that the GNU C Library incorrectly handled certain\nmemalign functions. A remote attacker could use this issue to cause the GNU\nC Library to crash, resulting in a denial of service, or possibly execute\narbitrary code. This issue only affected Ubuntu 16.04 LTS. (CVE-2018-6485)\n\nIt was discovered that the GNU C Library incorrectly ignored the\nLD_PREFER_MAP_32BIT_EXEC environment variable after security transitions. A\nlocal attacker could use this issue to bypass ASLR restrictions.\n(CVE-2019-19126)\n\nIt was discovered that the GNU C Library incorrectly handled certain\nregular expressions. A remote attacker could possibly use this issue to\ncause the GNU C Library to crash, resulting in a denial of service. This\nissue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. (CVE-2019-9169)\n\nIt was discovered that the GNU C Library incorrectly handled certain\nbit patterns. A remote attacker could use this issue to cause the GNU C\nLibrary to crash, resulting in a denial of service, or possibly execute\narbitrary code. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04\nLTS. (CVE-2020-10029)\n\nIt was discovered that the GNU C Library incorrectly handled certain\nsignal trampolines on PowerPC. A remote attacker could use this issue to\ncause the GNU C Library to crash, resulting in a denial of service, or\npossibly execute arbitrary code. (CVE-2020-1751)\n\nIt was discovered that the GNU C Library incorrectly handled tilde\nexpansion. A remote attacker could use this issue to cause the GNU C\nLibrary to crash, resulting in a denial of service, or possibly execute\narbitrary code. (CVE-2020-1752)\n","status":"published","published":"2020-07-06T18:10:11Z","modified":"2026-04-27T19:02:50.923199887Z","updated_at":"2026-11-02T16:58:14.547547Z"}]}}