{"id":"USN-8737-2","summary":"glibc vulnerabilities","details":"USN-8737-1 fixed vulnerabilities in GNU C Library. This update provides\nthe corresponding fixes for Ubuntu 24.04 LTS.\n\nOriginal advisory details:\n\n It was discovered that GNU C Library had a buffer overflow in the strfmon\n function when handling right-justification padding. An attacker could\n possibly use this issue to cause a denial of service or execute arbitrary\n code. This issue only affected Ubuntu 26.04 LTS. (CVE-2026-19499)\n\n It was discovered that GNU C Library had an out-of-bounds stack array\n access in the tdelete function. An attacker could possibly use this issue\n to cause a denial of service or execute arbitrary code. (CVE-2026-19542)\n\n It was discovered that GNU C Library incorrectly handled memory when\n calling wordexp with the WRDE_APPEND flag. An attacker could possibly use\n this issue to cause a denial of service. (CVE-2026-6368)\n\n It was discovered that GNU C Library had a stack overflow in the wordexp\n function when expanding paths beginning with a tilde followed by a long\n username. An attacker could possibly use this issue to cause a denial of\n service or execute arbitrary code. (CVE-2026-6791)\n\n It was discovered that GNU C Library had a hang in the SHIFT_JISX0213\n character set converter. An attacker could possibly use this issue to cause\n a denial of service. (CVE-2026-77117)\n\n It was discovered that GNU C Library had a hang in the EUC_JISX0213\n character set converter. An attacker could possibly use this issue to cause\n a denial of service. (CVE-2026-80489)","modified":"2026-09-10T21:42:30.499101704Z","published":"2026-09-10T11:25:21Z","related":["UBUNTU-CVE-2026-19499","UBUNTU-CVE-2026-19542","UBUNTU-CVE-2026-6368","UBUNTU-CVE-2026-6791","UBUNTU-CVE-2026-77117","UBUNTU-CVE-2026-80489"],"upstream":["CVE-2026-19499","CVE-2026-19542","CVE-2026-6368","CVE-2026-6791","CVE-2026-77117","CVE-2026-80489","UBUNTU-CVE-2026-19499","UBUNTU-CVE-2026-19542","UBUNTU-CVE-2026-6368","UBUNTU-CVE-2026-6791","UBUNTU-CVE-2026-77117","UBUNTU-CVE-2026-80489"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8737-2"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-6368"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-6791"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-19499"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-19542"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-77117"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-80489"}],"affected":[{"package":{"name":"glibc","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/glibc?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.39-0ubuntu8.9"}]}],"versions":["2.38-1ubuntu6","2.38-3ubuntu1","2.39-0ubuntu1","2.39-0ubuntu2","2.39-0ubuntu6","2.39-0ubuntu8","2.39-0ubuntu8.1","2.39-0ubuntu8.2","2.39-0ubuntu8.3","2.39-0ubuntu8.4","2.39-0ubuntu8.5","2.39-0ubuntu8.6","2.39-0ubuntu8.7","2.39-0ubuntu8.8"],"ecosystem_specific":{"binaries":[{"binary_name":"glibc-source","binary_version":"2.39-0ubuntu8.9"},{"binary_version":"2.39-0ubuntu8.9","binary_name":"libc-bin"},{"binary_version":"2.39-0ubuntu8.9","binary_name":"libc-dev-bin"},{"binary_name":"libc-devtools","binary_version":"2.39-0ubuntu8.9"},{"binary_name":"libc6","binary_version":"2.39-0ubuntu8.9"},{"binary_version":"2.39-0ubuntu8.9","binary_name":"libc6-amd64"},{"binary_name":"libc6-dev-amd64","binary_version":"2.39-0ubuntu8.9"},{"binary_name":"libc6-dev-i386","binary_version":"2.39-0ubuntu8.9"},{"binary_version":"2.39-0ubuntu8.9","binary_name":"libc6-dev-s390"},{"binary_version":"2.39-0ubuntu8.9","binary_name":"libc6-dev-x32"},{"binary_name":"libc6-i386","binary_version":"2.39-0ubuntu8.9"},{"binary_name":"libc6-s390","binary_version":"2.39-0ubuntu8.9"},{"binary_version":"2.39-0ubuntu8.9","binary_name":"libc6-x32"},{"binary_version":"2.39-0ubuntu8.9","binary_name":"locales"},{"binary_version":"2.39-0ubuntu8.9","binary_name":"locales-all"},{"binary_name":"nscd","binary_version":"2.39-0ubuntu8.9"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:24.04:LTS","cves":[{"severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/S:P/AU:Y/U:Green"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2026-6368"},{"id":"CVE-2026-6791","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:L/SA:H/E:U"},{"score":"medium","type":"Ubuntu"}]},{"severity":[{"type":"Ubuntu","score":"medium"}],"id":"CVE-2026-19499"},{"severity":[{"type":"Ubuntu","score":"medium"}],"id":"CVE-2026-19542"},{"severity":[{"type":"Ubuntu","score":"medium"}],"id":"CVE-2026-77117"},{"severity":[{"type":"Ubuntu","score":"medium"}],"id":"CVE-2026-80489"}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8737-2.json"}}],"schema_version":"1.9.0"}