{"id":"CVE-2018-6485","aliases":["CLSA-2026-1776605836","CLSA-2026-1776606103","DEBIAN-CVE-2018-6485","EUVD-2018-18241","GHSA-m775-r988-g6m4","MGASA-2018-0159","RHSA-2018:3092","SUSE-SU-2018:0451-1","SUSE-SU-2018:0565-1","UBUNTU-CVE-2018-6485","USN-4218-1","USN-4416-1","openSUSE-SU-2024:10792-1"],"status":"published","title":"An integer overflow in the implementation of the posix_memalign in memalign functions in the GNU...","description":"An integer overflow in the implementation of the posix_memalign in memalign functions in the GNU C Library (aka glibc or libc6) 2.26 and earlier could cause these functions to return a pointer to a heap area that is too small, potentially leading to heap 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integer overflow in the implementation of the posix_memalign in memalign functions in the GNU C Library (aka glibc or libc6) 2.26 and earlier could cause these functions to return a pointer to a heap area that is too small, potentially leading to heap corruption.","status":"published","published":"2018-02-01T14:00:00Z","modified":"2024-08-05T06:01:49.264Z","updated_at":"2026-11-02T14:35:05.619113Z"}],"euvd":[{"id":"EUVD-2018-18241","description":"An integer overflow in the implementation of the posix_memalign in memalign functions in the GNU C Library (aka glibc or libc6) 2.26 and earlier could cause these functions to return a pointer to a heap area that is too small, potentially leading to heap corruption.","status":"published","published":"2018-02-01T14:00:00Z","modified":"2024-08-05T06:01:49Z","updated_at":"2026-11-03T02:40:08.072854Z"}],"ghsa":[{"id":"GHSA-m775-r988-g6m4","title":"An integer overflow in the implementation of the posix_memalign in memalign functions in the GNU...","description":"An integer overflow in the implementation of the posix_memalign in memalign functions in the GNU C Library (aka glibc or libc6) 2.26 and earlier could cause these functions to return a pointer to a heap area that is too small, potentially leading to heap corruption.","status":"published","published":"2022-05-13T01:20:29Z","modified":"2023-02-01T05:05:58Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:50:17.937177Z"}],"nvd":[{"id":"CVE-2018-6485","description":"An integer overflow in the implementation of the posix_memalign in memalign functions in the GNU C Library (aka glibc or libc6) 2.26 and earlier could cause these functions to return a pointer to a heap area that is too small, potentially leading to heap corruption.","status":"published","published":"2018-02-01T14:29:00.623Z","modified":"2026-06-17T02:01:53.69Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-190","CWE-787"],"updated_at":"2026-11-02T14:04:22.897995Z"}],"osv":[{"id":"CVE-2018-6485","description":"An integer overflow in the implementation of the posix_memalign in memalign functions in the GNU C Library (aka glibc or libc6) 2.26 and earlier could cause these functions to return a pointer to a heap area that is too small, potentially leading to heap corruption.","status":"published","published":"2018-02-01T14:29:00.623Z","modified":"2026-10-24T10:30:34.402800858Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:44:09.74357Z"},{"id":"DEBIAN-CVE-2018-6485","description":"An integer overflow in the implementation of the posix_memalign in memalign functions in the GNU C Library (aka glibc or libc6) 2.26 and earlier could cause these functions to return a pointer to a heap area that is too small, potentially leading to heap corruption.","status":"published","published":"2018-02-01T14:29:00.623Z","modified":"2026-10-23T18:03:23.186969355Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:45:30.867575Z"},{"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-2018-6485","description":"An integer overflow in the implementation of the posix_memalign in memalign functions in the GNU C Library (aka glibc or libc6) 2.26 and earlier could cause these functions to return a pointer to a heap area that is too small, potentially leading to heap corruption.","status":"published","published":"2018-02-01T14:29:00Z","modified":"2026-04-22T12:02:40.371879Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:54:18.772093Z"},{"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-2018-0159","title":"Updated glibc packages fix security vulnerability","description":"An integer overflow in the implementation of the posix_memalign in memalign\nfunctions in the GNU C Library (aka glibc or libc6) 2.26 and earlier could\ncause these functions to return a pointer to a heap area that is too small,\npotentially leading to heap corruption (CVE-2018-6485, CVE-2018-6551).\n","status":"published","published":"2018-03-06T07:55:33Z","modified":"2026-04-16T06:22:44.329221442Z","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-2018:0451-1","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":"USN-4218-1","title":"eglibc vulnerability","description":"Jakub Wilk discovered that GNU C Library incorrectly handled certain memory alignments.\nAn attacker could possibly use this issue to execute arbitrary code or cause\na crash.\n","status":"published","published":"2019-12-10T13:49:32Z","modified":"2026-04-22T09:50:38.80839Z","updated_at":"2026-11-02T16:58:14.547547Z"},{"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"}]}}