{"id":"USN-8737-1","summary":"glibc vulnerabilities","details":"It was discovered that GNU C Library had a buffer overflow in the strfmon\nfunction when handling right-justification padding. An attacker could\npossibly use this issue to cause a denial of service or execute arbitrary\ncode. This issue only affected Ubuntu 26.04 LTS. (CVE-2026-19499)\n\nIt was discovered that GNU C Library had an out-of-bounds stack array\naccess in the tdelete function. An attacker could possibly use this issue\nto cause a denial of service or execute arbitrary code. (CVE-2026-19542)\n\nIt was discovered that GNU C Library incorrectly handled memory when\ncalling wordexp with the WRDE_APPEND flag. An attacker could possibly use\nthis issue to cause a denial of service. (CVE-2026-6368)\n\nIt was discovered that GNU C Library had a stack overflow in the wordexp\nfunction when expanding paths beginning with a tilde followed by a long\nusername. An attacker could possibly use this issue to cause a denial of\nservice or execute arbitrary code. (CVE-2026-6791)\n\nIt was discovered that GNU C Library had a hang in the SHIFT_JISX0213\ncharacter set converter. An attacker could possibly use this issue to cause\na denial of service. (CVE-2026-77117)\n\nIt was discovered that GNU C Library had a hang in the EUC_JISX0213\ncharacter set converter. An attacker could possibly use this issue to cause\na denial of service. (CVE-2026-80489)","modified":"2026-09-09T00:42:27.178874479Z","published":"2026-09-08T15:17:47Z","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-8737-1"},{"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:22.04:LTS","purl":"pkg:deb/ubuntu/glibc?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.35-0ubuntu3.15"}]}],"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","2.35-0ubuntu3.6","2.35-0ubuntu3.7","2.35-0ubuntu3.8","2.35-0ubuntu3.9","2.35-0ubuntu3.10","2.35-0ubuntu3.11","2.35-0ubuntu3.12","2.35-0ubuntu3.13","2.35-0ubuntu3.14"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"2.35-0ubuntu3.15","binary_name":"glibc-source"},{"binary_name":"libc-bin","binary_version":"2.35-0ubuntu3.15"},{"binary_name":"libc-dev-bin","binary_version":"2.35-0ubuntu3.15"},{"binary_name":"libc-devtools","binary_version":"2.35-0ubuntu3.15"},{"binary_name":"libc6","binary_version":"2.35-0ubuntu3.15"},{"binary_version":"2.35-0ubuntu3.15","binary_name":"libc6-amd64"},{"binary_name":"libc6-dev-amd64","binary_version":"2.35-0ubuntu3.15"},{"binary_version":"2.35-0ubuntu3.15","binary_name":"libc6-dev-i386"},{"binary_name":"libc6-dev-s390","binary_version":"2.35-0ubuntu3.15"},{"binary_name":"libc6-dev-x32","binary_version":"2.35-0ubuntu3.15"},{"binary_version":"2.35-0ubuntu3.15","binary_name":"libc6-i386"},{"binary_name":"libc6-prof","binary_version":"2.35-0ubuntu3.15"},{"binary_version":"2.35-0ubuntu3.15","binary_name":"libc6-s390"},{"binary_name":"libc6-x32","binary_version":"2.35-0ubuntu3.15"},{"binary_name":"locales","binary_version":"2.35-0ubuntu3.15"},{"binary_version":"2.35-0ubuntu3.15","binary_name":"locales-all"},{"binary_name":"nscd","binary_version":"2.35-0ubuntu3.15"}]},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2026-6368","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"}]},{"severity":[{"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","type":"CVSS_V4"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2026-6791"},{"severity":[{"type":"Ubuntu","score":"medium"}],"id":"CVE-2026-19542"},{"id":"CVE-2026-77117","severity":[{"score":"medium","type":"Ubuntu"}]},{"severity":[{"score":"medium","type":"Ubuntu"}],"id":"CVE-2026-80489"}],"ecosystem":"Ubuntu:22.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8737-1.json"}},{"package":{"name":"glibc","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/glibc?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.43-2ubuntu2.4"}]}],"versions":["2.42-0ubuntu3","2.42-2ubuntu1","2.42-2ubuntu2","2.42-2ubuntu4","2.42-2ubuntu5","2.43-2ubuntu1","2.43-2ubuntu2","2.43-2ubuntu2.3"],"ecosystem_specific":{"binaries":[{"binary_name":"glibc-source","binary_version":"2.43-2ubuntu2.4"},{"binary_version":"2.43-2ubuntu2.4","binary_name":"libc-bin"},{"binary_name":"libc-dev-bin","binary_version":"2.43-2ubuntu2.4"},{"binary_version":"2.43-2ubuntu2.4","binary_name":"libc-devtools"},{"binary_name":"libc-gconv-modules-extra","binary_version":"2.43-2ubuntu2.4"},{"binary_name":"libc6","binary_version":"2.43-2ubuntu2.4"},{"binary_name":"libc6-amd64","binary_version":"2.43-2ubuntu2.4"},{"binary_name":"libc6-dev-amd64","binary_version":"2.43-2ubuntu2.4"},{"binary_version":"2.43-2ubuntu2.4","binary_name":"libc6-dev-i386"},{"binary_name":"libc6-dev-x32","binary_version":"2.43-2ubuntu2.4"},{"binary_name":"libc6-i386","binary_version":"2.43-2ubuntu2.4"},{"binary_name":"libc6-x32","binary_version":"2.43-2ubuntu2.4"},{"binary_version":"2.43-2ubuntu2.4","binary_name":"locales"},{"binary_name":"locales-all","binary_version":"2.43-2ubuntu2.4"},{"binary_version":"2.43-2ubuntu2.4","binary_name":"nscd"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:26.04:LTS","cves":[{"severity":[{"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":"CVSS_V4"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2026-6368"},{"id":"CVE-2026-6791","severity":[{"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","type":"CVSS_V4"},{"type":"Ubuntu","score":"medium"}]},{"severity":[{"type":"Ubuntu","score":"medium"}],"id":"CVE-2026-19499"},{"id":"CVE-2026-19542","severity":[{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2026-77117","severity":[{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2026-80489","severity":[{"score":"medium","type":"Ubuntu"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8737-1.json"}}],"schema_version":"1.9.0"}