{"id":"USN-6541-2","aliases":[],"status":"published","title":"glibc regression","description":"USN-6541-1 fixed vulnerabilities in the GNU C Library. Unfortunately,\nchanges made to allow proper application of the fix for CVE-2023-4806 in\nUbuntu 22.04 LTS introduced an issue in the NSCD service IPv6 processing\nfunctionalities. This update fixes the problem.\n\nWe apologize for the inconvenience.\n\nOriginal advisory details:\n\n It was discovered that the GNU C Library was not properly handling certain\n memory operations. An attacker could possibly use this issue to cause a\n denial of service (application crash). (CVE-2023-4806, CVE-2023-4813)\n \n It was discovered that the GNU C library was not properly implementing a\n fix for CVE-2023-4806 in certain cases, which could lead to a memory leak.\n An attacker could possibly use this issue to cause a denial of service\n (application crash). This issue only affected Ubuntu 22.04 LTS and Ubuntu\n 23.04. (CVE-2023-5156)","facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2024-01-10T13:10:15Z","modified":"2026-04-22T10:42:41Z","fixes":[{"ecosystem":"Ubuntu:22.04:LTS","package":"glibc","fixed_in":["2.35-0ubuntu3.6"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"glibc","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.35-0ubuntu3.6"}]}],"versions":["2.34-0ubuntu3","2.35-0ubuntu1","2.35-0ubuntu3","2.35-0ubuntu3.1","2.35-0ubuntu3.3","2.35-0ubuntu3.4","2.35-0ubuntu3.5"]}],"references":[{"url":"https://ubuntu.com/security/notices/USN-6541-2","tags":["advisory"]},{"url":"https://launchpad.net/bugs/2047155","tags":["report"]}],"sources":{"osv":[{"id":"USN-6541-2","title":"glibc regression","description":"USN-6541-1 fixed vulnerabilities in the GNU C Library. Unfortunately,\nchanges made to allow proper application of the fix for CVE-2023-4806 in\nUbuntu 22.04 LTS introduced an issue in the NSCD service IPv6 processing\nfunctionalities. This update fixes the problem.\n\nWe apologize for the inconvenience.\n\nOriginal advisory details:\n\n It was discovered that the GNU C Library was not properly handling certain\n memory operations. An attacker could possibly use this issue to cause a\n denial of service (application crash). (CVE-2023-4806, CVE-2023-4813)\n \n It was discovered that the GNU C library was not properly implementing a\n fix for CVE-2023-4806 in certain cases, which could lead to a memory leak.\n An attacker could possibly use this issue to cause a denial of service\n (application crash). This issue only affected Ubuntu 22.04 LTS and Ubuntu\n 23.04. (CVE-2023-5156)\n","status":"published","published":"2024-01-10T13:10:15Z","modified":"2026-04-22T10:42:41.665332Z","updated_at":"2026-11-02T16:58:17.305935Z"}]}}