{"id":"CVE-2017-16997","aliases":["DEBIAN-CVE-2017-16997","EUVD-2017-8165","GHSA-q5m3-4jcg-c4rf","MGASA-2018-0096","MGASA-2018-0098","RHSA-2018:3092","SUSE-SU-2018:0074-1","UBUNTU-CVE-2017-16997","USN-3534-1","openSUSE-SU-2024:10792-1"],"status":"published","title":"elf/dl-load.c in the GNU C Library (aka glibc or libc6) 2.19 through 2.26 mishandles RPATH and...","description":"elf/dl-load.c in the GNU C Library (aka glibc or libc6) 2.19 through 2.26 mishandles RPATH and RUNPATH containing $ORIGIN for a privileged (setuid or AT_SECURE) program, which allows local users to gain privileges via a Trojan horse library in the current working directory, related to the fillin_rpath and decompose_rpath functions. This is associated with misinterpretion of an empty RPATH/RUNPATH token as the \"./\" directory. NOTE: this configuration of RPATH/RUNPATH for a privileged program is apparently very uncommon; most likely, no such program is shipped with any common Linux distribution.","severity":{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.02895,"percentile":0.87004,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":true},"cwes":["CWE-426"],"published":"2017-12-17T00:00:00Z","modified":"2026-10-24T10:30:50Z","exploits":[{"source":"pocgithub","id":"Xiami2012/CVE-2017-16997-poc","title":"Xiami2012/CVE-2017-16997-poc","date":"2018-01-03","url":"https://github.com/Xiami2012/CVE-2017-16997-poc"}],"fixes":[{"ecosystem":"Debian:12","package":"glibc","fixed_in":["2.25-6"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"glibc","fixed_in":["2.25-6"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"glibc","fixed_in":["2.25-6"],"sources":["osv"]},{"ecosystem":"Ubuntu:14.04:LTS","package":"eglibc","fixed_in":["2.19-0ubuntu6.14"],"sources":["osv"]},{"ecosystem":"Ubuntu:16.04:LTS","package":"glibc","fixed_in":["2.23-0ubuntu10"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"glibc","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.25-6"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"glibc","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.25-6"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"glibc","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.25-6"}]}]},{"source":"osv","ecosystem":"Mageia:6","package":"glibc","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.22-27.mga6"}]}],"bundled":2},{"source":"osv","ecosystem":"Mageia:6","package":"locales","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.22-7.mga6"}]}],"bundled":2},{"source":"osv","ecosystem":"Mageia:5","package":"glibc","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.20-27.mga5"}]}],"bundled":2},{"source":"osv","ecosystem":"Red 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security/cve/CVE-2017-16997","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-1000001","tags":["web"]},{"url":"https://ubuntu.com/security/CVE-2017-16997","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-3534-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2017-15670","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2017-15804","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2017-17426","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2017-1000408","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2017-1000409","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2018-1000001","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-2017-12132","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-12133","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-2018-11236","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-2017-16997","description":"elf/dl-load.c in the GNU C Library (aka glibc or libc6) 2.19 through 2.26 mishandles RPATH and RUNPATH containing $ORIGIN for a privileged (setuid or AT_SECURE) program, which allows local users to gain privileges via a Trojan horse library in the current working directory, related to the fillin_rpath and decompose_rpath functions. This is associated with misinterpretion of an empty RPATH/RUNPATH token as the \"./\" directory. NOTE: this configuration of RPATH/RUNPATH for a privileged program is apparently very uncommon; most likely, no such program is shipped with any common Linux distribution.","status":"published","published":"2017-12-18T01:00:00Z","modified":"2024-08-05T20:43:59.423Z","updated_at":"2026-11-02T14:33:21.453505Z"}],"euvd":[{"id":"EUVD-2017-8165","description":"elf/dl-load.c in the GNU C Library (aka glibc or libc6) 2.19 through 2.26 mishandles RPATH and RUNPATH containing $ORIGIN for a privileged (setuid or AT_SECURE) program, which allows local users to gain privileges via a Trojan horse library in the current working directory, related to the fillin_rpath and decompose_rpath functions. This is associated with misinterpretion of an empty RPATH/RUNPATH token as the \"./\" directory. NOTE: this configuration of RPATH/RUNPATH for a privileged program is apparently very uncommon; most likely, no such program is shipped with any common Linux distribution.","status":"published","published":"2017-12-18T01:00:00Z","modified":"2024-08-05T20:43:59Z","updated_at":"2026-11-03T02:23:11.095005Z"}],"ghsa":[{"id":"GHSA-q5m3-4jcg-c4rf","title":"elf/dl-load.c in the GNU C Library (aka glibc or libc6) 2.19 through 2.26 mishandles RPATH and...","description":"elf/dl-load.c in the GNU C Library (aka glibc or libc6) 2.19 through 2.26 mishandles RPATH and RUNPATH containing $ORIGIN for a privileged (setuid or AT_SECURE) program, which allows local users to gain privileges via a Trojan horse library in the current working directory, related to the fillin_rpath and decompose_rpath functions. This is associated with misinterpretion of an empty RPATH/RUNPATH token as the \"./\" directory. NOTE: this configuration of RPATH/RUNPATH for a privileged program is apparently very uncommon; most likely, no such program is shipped with any common Linux distribution.","status":"published","published":"2022-05-13T01:14:42Z","modified":"2023-02-01T05:04:16Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-426"],"updated_at":"2026-11-02T14:50:08.411477Z"}],"nvd":[{"id":"CVE-2017-16997","description":"elf/dl-load.c in the GNU C Library (aka glibc or libc6) 2.19 through 2.26 mishandles RPATH and RUNPATH containing $ORIGIN for a privileged (setuid or AT_SECURE) program, which allows local users to gain privileges via a Trojan horse library in the current working directory, related to the fillin_rpath and decompose_rpath functions. This is associated with misinterpretion of an empty RPATH/RUNPATH token as the \"./\" directory. NOTE: this configuration of RPATH/RUNPATH for a privileged program is apparently very uncommon; most likely, no such program is shipped with any common Linux distribution.","status":"published","published":"2017-12-18T01:29:00.19Z","modified":"2026-06-17T01:10:14.35Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":9.3,"vector":"AV:N/AC:M/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-426"],"updated_at":"2026-11-02T14:04:11.215487Z"}],"osv":[{"id":"CVE-2017-16997","description":"elf/dl-load.c in the GNU C Library (aka glibc or libc6) 2.19 through 2.26 mishandles RPATH and RUNPATH containing $ORIGIN for a privileged (setuid or AT_SECURE) program, which allows local users to gain privileges via a Trojan horse library in the current working directory, related to the fillin_rpath and decompose_rpath functions. This is associated with misinterpretion of an empty RPATH/RUNPATH token as the \"./\" directory. NOTE: this configuration of RPATH/RUNPATH for a privileged program is apparently very uncommon; most likely, no such program is shipped with any common Linux distribution.","status":"published","published":"2017-12-18T01:29:00.19Z","modified":"2026-10-24T10:30:50.254267386Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:04.853379Z"},{"id":"DEBIAN-CVE-2017-16997","description":"elf/dl-load.c in the GNU C Library (aka glibc or libc6) 2.19 through 2.26 mishandles RPATH and RUNPATH containing $ORIGIN for a privileged (setuid or AT_SECURE) program, which allows local users to gain privileges via a Trojan horse library in the current working directory, related to the fillin_rpath and decompose_rpath functions. This is associated with misinterpretion of an empty RPATH/RUNPATH token as the \"./\" directory. NOTE: this configuration of RPATH/RUNPATH for a privileged program is apparently very uncommon; most likely, no such program is shipped with any common Linux distribution.","status":"published","published":"2017-12-18T01:29:00.19Z","modified":"2026-09-01T20:03:45.38424016Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:29.100767Z"},{"id":"RHSA-2018:3092","title":"Red Hat Security Advisory: glibc security, bug fix, and enhancement update","status":"published","published":"2024-09-16T01:21:02Z","modified":"2026-06-27T10:06:16Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:05.383061Z"},{"id":"UBUNTU-CVE-2017-16997","description":"elf/dl-load.c in the GNU C Library (aka glibc or libc6) 2.19 through 2.26 mishandles RPATH and RUNPATH containing $ORIGIN for a privileged (setuid or AT_SECURE) program, which allows local users to gain privileges via a Trojan horse library in the current working directory, related to the fillin_rpath and decompose_rpath functions. This is associated with misinterpretion of an empty RPATH/RUNPATH token as the \"./\" directory. NOTE: this configuration of RPATH/RUNPATH for a privileged program is apparently very uncommon; most likely, no such program is shipped with any common Linux distribution.","status":"published","published":"2017-12-17T00:00:00Z","modified":"2026-04-22T11:19:33.898967Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:54:14.563448Z"},{"id":"MGASA-2018-0096","title":"Updated glibc packages fix security vulnerabilities","description":"Updated glibc packages fix security vulnerabilities:\n\nAn issue in the code handling RPATHs was fixed that could have been\nexploited by an attacker to execute code loaded from arbitrary\nlibraries (CVE-2017-16997).\n\nA privilege escalation bug in the realpath() function when the getcwd()\nsystem call doesn't return a valid absolute pathname (CVE-2018-1000001).\n\nAlso, support for the C.UTF-8 locale has been added in the locales\npackage.\n","status":"published","published":"2018-01-25T12:47:25Z","modified":"2026-04-16T06:23:31.287639927Z","updated_at":"2026-11-02T15:49:40.442238Z"},{"id":"MGASA-2018-0098","title":"Updated glibc packages fix security vulnerabilities","description":"An issue in the code handling RPATHs was fixed that could have been\nexploited by an attacker to execute code loaded from arbitrary\nlibraries (CVE-2017-16997).\n\nA privilege escalation bug in the realpath() function when the getcwd()\nsystem call doesn't return a valid absolute pathname (CVE-2018-1000001).\n","status":"published","published":"2018-01-25T12:47:25Z","modified":"2026-04-16T06:22:37.249546503Z","updated_at":"2026-11-02T15:49:40.442238Z"},{"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":"SUSE-SU-2018:0074-1","title":"Security update for glibc","description":"This update for glibc fixes the following issues:\n\n- A privilege escalation bug in the realpath() function has been fixed.\n  [CVE-2018-1000001, bsc#1074293]\n\n- A memory leak and a buffer overflow in the dynamic ELF loader has been fixed.\n  [CVE-2017-1000408, CVE-2017-1000409, bsc#1071319]\n\n- An issue in the code handling RPATHs was fixed that could have been exploited\n  by an attacker to execute code loaded from arbitrary libraries.\n  [CVE-2017-16997, bsc#1073231]\n\n- A potential crash caused by a use-after-free bug in pthread_create() has been\n  fixed. [bsc#1053188]\n\n- A bug that prevented users to build shared objects which use the optimized\n  libmvec.so API has been fixed. [bsc#1070905]\n\n- A memory leak in the glob() function has been fixed. [CVE-2017-15670,\n  CVE-2017-15671, CVE-2017-15804, bsc#1064569, bsc#1064580, bsc#1064583]\n\n- A bug that would lose the syscall error code value in case of crashes has\n  been fixed. [bsc#1063675]\n","status":"published","published":"2018-01-12T08:46:15Z","modified":"2026-02-04T02:25:34.853927Z","updated_at":"2026-11-02T15:53:44.594517Z"},{"id":"USN-3534-1","title":"eglibc, glibc vulnerabilities","description":"It was discovered that the GNU C library did not properly handle all of\nthe possible return values from the kernel getcwd(2) syscall. A local\nattacker could potentially exploit this to execute arbitrary code in setuid\nprograms and gain administrative privileges. (CVE-2018-1000001)\n\nA memory leak was discovered in the _dl_init_paths() function in the GNU\nC library dynamic loader. A local attacker could potentially exploit this\nwith a specially crafted value in the LD_HWCAP_MASK environment variable,\nin combination with CVE-2017-1000409 and another vulnerability on a system\nwith hardlink protections disabled, in order to gain administrative\nprivileges. (CVE-2017-1000408)\n\nA heap-based buffer overflow was discovered in the _dl_init_paths()\nfunction in the GNU C library dynamic loader. A local attacker could\npotentially exploit this with a specially crafted value in the\nLD_LIBRARY_PATH environment variable, in combination with CVE-2017-1000408\nand another vulnerability on a system with hardlink protections disabled,\nin order to gain administrative privileges. (CVE-2017-1000409)\n\nAn off-by-one error leading to a heap-based buffer overflow was discovered\nin the GNU C library glob() implementation. An attacker could potentially\nexploit this to cause a denial of service or execute arbitrary code via a\nmaliciously crafted pattern. (CVE-2017-15670)\n\nA heap-based buffer overflow was discovered during unescaping of user names\nwith the ~ operator in the GNU C library glob() implementation. An attacker\ncould potentially exploit this to cause a denial of service or execute\narbitrary code via a maliciously crafted pattern. (CVE-2017-15804)\n\nIt was discovered that the GNU C library dynamic loader mishandles RPATH\nand RUNPATH containing $ORIGIN for privileged (setuid or AT_SECURE)\nprograms. A local attacker could potentially exploit this by providing a\nspecially crafted library in the current working directory in order to\ngain administrative privileges. (CVE-2017-16997)\n\nIt was discovered that the GNU C library malloc() implementation could\nreturn a memory block that is too small if an attempt is made to allocate\nan object whose size is close to SIZE_MAX, resulting in a heap-based\noverflow. An attacker could potentially exploit this to cause a denial of\nservice or execute arbitrary code. This issue only affected Ubuntu 17.10.\n(CVE-2017-17426)\n","status":"published","published":"2018-01-17T12:57:11Z","modified":"2026-04-22T09:42:09.265621Z","updated_at":"2026-11-02T16:58:13.496563Z"}]}}