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the destination buffer leading to a buffer underflow and potential code execution.","status":"published","published":"2022-05-13T01:48:29Z","modified":"2023-02-02T05:01:38Z","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"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:51:13.443022Z"}],"nvd":[{"id":"CVE-2018-1000001","description":"In glibc 2.26 and earlier there is confusion in the usage of getcwd() by realpath() which can be used to write before the destination buffer leading to a buffer underflow and potential code 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confusion in the usage of getcwd() by realpath() which can be used to write before the destination buffer leading to a buffer underflow and potential code execution.","status":"published","published":"2018-01-31T14:29:00.607Z","modified":"2026-10-23T18:02:55.449287278Z","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":"2026-11-02T15:45:29.988046Z"},{"id":"RHSA-2018:0805","title":"Red Hat Security Advisory: glibc security, bug fix, and enhancement update","status":"published","published":"2024-09-16T00:46:08Z","modified":"2026-06-26T12:22:01.405386482Z","cvss":[{"version":"3.0","score":7,"vector":"CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:04.822845Z"},{"id":"UBUNTU-CVE-2018-1000001","description":"In glibc 2.26 and earlier there is confusion in the usage of getcwd() by realpath() which can be used to write before the destination buffer leading to a buffer underflow and potential code execution.","status":"published","published":"2018-01-11T00:00:00Z","modified":"2026-04-22T11:39:07.452703Z","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":"2026-11-02T15:54:16.154988Z"},{"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":"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-2018:0071-1","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","status":"published","published":"2018-01-12T08:46:45Z","modified":"2026-02-04T03:10:16.984236Z","updated_at":"2026-11-02T15:53:44.594517Z"},{"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":"SUSE-SU-2018:0075-1","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","status":"published","published":"2018-01-12T08:48:05Z","modified":"2026-02-04T04:28:02.124358Z","updated_at":"2026-11-02T15:53:44.594517Z"},{"id":"SUSE-SU-2018:0076-1","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 buffer manipulation vulnerability in nscd has been fixed that could\n  possibly have lead to an nscd daemon crash or code execution as the user\n  running nscd. [CVE-2014-9984, bsc#1043984]\n","status":"published","published":"2018-01-12T08:44:04Z","modified":"2026-02-04T02:25:25.494349Z","updated_at":"2026-11-02T15:53:44.594517Z"},{"id":"SUSE-SU-2018:0451-1","title":"Security update for glibc","description":"\n  \nThis update for glibc fixes the following issues:\n\nSecurity issues fixed:\n\n- CVE-2017-8804: Fix memory leak after deserialization failure in xdr_bytes, xdr_string (bsc#1037930)\n- CVE-2017-12132: Reduce EDNS payload size to 1200 bytes (bsc#1051791)\n- CVE-2018-6485,CVE-2018-6551: Fix integer overflows in internal memalign and malloc functions (bsc#1079036)\n- CVE-2018-1000001: Avoid underflow of malloced area (bsc#1074293)\n\nNon security bugs fixed:\n\n- Release read lock after resetting timeout (bsc#1073990)\n","status":"published","published":"2018-02-15T13:48:02Z","modified":"2026-02-04T03:29:00.314328Z","updated_at":"2026-11-02T15:53:44.594517Z"},{"id":"SUSE-SU-2018:0565-1","title":"Security update for glibc","description":"\n  \nThis update for glibc fixes the following issues:\n\nSecurity issues:\n\n- CVE-2017-8804: Fix memory leak after deserialization failure in xdr_bytes, xdr_string (bsc#1037930)\n- CVE-2017-12132: Reduce EDNS payload size to 1200 bytes (bsc#1051791)\n- CVE-2018-6485,CVE-2018-6551: Fix integer overflows in internal memalign and malloc functions (bsc#1079036)\n- CVE-2018-1000001: Avoid underflow of malloced area in realpath (bsc#1074293)\n\nAlso a non security issue was fixed:\n\n- Do not fail if one of the two responses to AF_UNSPEC fails (bsc#978209)\n","status":"published","published":"2018-02-28T16:32:49Z","modified":"2026-02-04T02:27:26.515283Z","updated_at":"2026-11-02T15:53:44.594517Z"},{"id":"SUSE-SU-2018:2187-1","title":"Security update for glibc","description":"This update for glibc fixes the following issues:\n\nSecurity issues fixed:\n\n- CVE-2017-15804: Fix buffer overflow during unescaping of user names in the glob function in glob.c (bsc#1064580).\n- CVE-2017-15670: Fix buffer overflow in glob with GLOB_TILDE (bsc#1064583).\n- CVE-2017-15671: Fix memory leak in glob with GLOB_TILDE (bsc#1064569).\n- CVE-2018-11236: Fix 32bit arch integer overflow in stdlib/canonicalize.c when processing very long pathname arguments (bsc#1094161).\n- CVE-2017-12132: Reduce advertised EDNS0 buffer size to guard against fragmentation attacks (bsc#1051791).\n- CVE-2018-1000001: Avoid underflow of malloced area (bsc#1074293).\n","status":"published","published":"2018-08-03T13:56:22Z","modified":"2026-02-04T03:10:55.022935Z","updated_at":"2026-11-02T15:53:44.972817Z"},{"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"},{"id":"USN-4768-1","title":"musl vulnerabilities","description":"It was discovered that musl did not properly handle kernel syscalls. An\nattacker could use this vulnerability to cause a denial of service (crash)\nor possibly execute arbitrary code. (CVE-2018-1000001)\n\nIt was discovered that musl did not properly handle the parsing of DNS\nresponse codes. A remote attacker could use this vulnerability to cause\nresource consumption (infinite loop), denial of service, or possibly\nexecute arbitrary code. This issue only affected Ubuntu 14.04 ESM.\n(CVE-2014-3484)\n\nIt was discovered that musl did not properly handle the parsing of DNS\nresponse codes. A remote attacker could use this vulnerability to cause\nresource consumption (infinite loop), denial of service, or possibly\nexecute arbitrary code. This issue only affected Ubuntu 16.04 ESM.\n(CVE-2017-15650)\n\nIt was discovered that musl did not properly handle the parsing of ipv6\naddresses. An attacker could use this vulnerability to cause a denial of\nservice (crash) or possibly execute arbitrary code. This issue only affected\nUbuntu 14.04 ESM. (CVE-2015-1817)\n\nIt was discovered that TRE library, used by musl, did not properly handle\ncertain inputs. An attacker could use this vulnerability to cause a denial of\nservice (crash). (CVE-2016-8859)\n\n","status":"published","published":"2021-03-15T20:10:13Z","modified":"2026-06-29T13:48:11.652218356Z","updated_at":"2026-11-02T16:58:15.159055Z"}]}}