{"id":"USN-5310-1","summary":"glibc vulnerabilities","details":"Jan Engelhardt, Tavis Ormandy, and others discovered that the GNU C Library\niconv feature incorrectly handled certain input sequences. An attacker\ncould possibly use this issue to cause the GNU C Library to hang or crash,\nresulting in a denial of service. This issue only affected Ubuntu 18.04 LTS\nand Ubuntu 20.04 LTS. (CVE-2016-10228, CVE-2019-25013, CVE-2020-27618,\nCVE-2020-29562, CVE-2021-3326)\n\nJason Royes and Samuel Dytrych discovered that the GNU C Library\nincorrectly handled signed comparisons on ARMv7 targets. A remote attacker\ncould use this issue to cause the GNU C Library to crash, resulting in a\ndenial of service, or possibly execute arbitrary code. This issue only\naffected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2020-6096)\n\nIt was discovered that the GNU C Library nscd daemon incorrectly handled\ncertain netgroup lookups. An 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 20.04 LTS. (CVE-2021-27645)\n\nIt was discovered that the GNU C Library wordexp function incorrectly\nhandled certain patterns. An attacker could use this issue to cause the\nGNU C Library to crash, resulting in a denial of service, or possibly\nobtain sensitive information. This issue only affected Ubuntu 18.04 LTS and\nUbuntu 20.04 LTS. (CVE-2021-35942)\n\nIt was discovered that the GNU C Library realpath function incorrectly\nhandled return values. An attacker could possibly use this issue to obtain\nsensitive information. This issue only affected Ubuntu 21.10.\n(CVE-2021-3998)\n\nIt was discovered that the GNU C library getcwd function incorrectly\nhandled buffers. An 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-2021-3999)\n\nIt was discovered that the GNU C Library sunrpc module incorrectly handled\nbuffer lengths. An attacker could possibly use this issue to cause the GNU\nC Library to crash, resulting in a denial of service. (CVE-2022-23218,\nCVE-2022-23219)\n","modified":"2026-02-17T22:02:59.204265Z","published":"2022-03-01T15:09:40Z","related":["UBUNTU-CVE-2016-10228","UBUNTU-CVE-2019-25013","UBUNTU-CVE-2020-27618","UBUNTU-CVE-2020-29562","UBUNTU-CVE-2020-6096","UBUNTU-CVE-2021-27645","UBUNTU-CVE-2021-3326","UBUNTU-CVE-2021-35942","UBUNTU-CVE-2021-3999","UBUNTU-CVE-2022-23218","UBUNTU-CVE-2022-23219"],"upstream":["CVE-2016-10228","CVE-2019-25013","CVE-2020-27618","CVE-2020-29562","CVE-2020-6096","CVE-2021-27645","CVE-2021-3326","CVE-2021-35942","CVE-2021-3998","CVE-2021-3999","CVE-2022-23218","CVE-2022-23219","UBUNTU-CVE-2016-10228","UBUNTU-CVE-2019-25013","UBUNTU-CVE-2020-27618","UBUNTU-CVE-2020-29562","UBUNTU-CVE-2020-6096","UBUNTU-CVE-2021-27645","UBUNTU-CVE-2021-3326","UBUNTU-CVE-2021-35942","UBUNTU-CVE-2021-3998","UBUNTU-CVE-2021-3999","UBUNTU-CVE-2022-23218","UBUNTU-CVE-2022-23219"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5310-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-10228"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-25013"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-6096"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-27618"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-29562"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-3326"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-3998"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-3999"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-27645"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-35942"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-23218"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-23219"}],"affected":[{"package":{"name":"glibc","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/glibc@2.27-3ubuntu1.5?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.27-3ubuntu1.5"}]}],"versions":["2.26-0ubuntu2","2.26-0ubuntu2.1","2.27-0ubuntu2","2.27-0ubuntu3","2.27-3ubuntu1","2.27-3ubuntu1.2","2.27-3ubuntu1.3","2.27-3ubuntu1.4"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"2.27-3ubuntu1.5","binary_name":"glibc-source"},{"binary_version":"2.27-3ubuntu1.5","binary_name":"libc-bin"},{"binary_version":"2.27-3ubuntu1.5","binary_name":"libc-dev-bin"},{"binary_version":"2.27-3ubuntu1.5","binary_name":"libc6"},{"binary_version":"2.27-3ubuntu1.5","binary_name":"libc6-amd64"},{"binary_version":"2.27-3ubuntu1.5","binary_name":"libc6-armel"},{"binary_version":"2.27-3ubuntu1.5","binary_name":"libc6-dev"},{"binary_version":"2.27-3ubuntu1.5","binary_name":"libc6-dev-amd64"},{"binary_version":"2.27-3ubuntu1.5","binary_name":"libc6-dev-armel"},{"binary_version":"2.27-3ubuntu1.5","binary_name":"libc6-dev-i386"},{"binary_version":"2.27-3ubuntu1.5","binary_name":"libc6-dev-s390"},{"binary_version":"2.27-3ubuntu1.5","binary_name":"libc6-dev-x32"},{"binary_version":"2.27-3ubuntu1.5","binary_name":"libc6-i386"},{"binary_version":"2.27-3ubuntu1.5","binary_name":"libc6-lse"},{"binary_version":"2.27-3ubuntu1.5","binary_name":"libc6-pic"},{"binary_version":"2.27-3ubuntu1.5","binary_name":"libc6-s390"},{"binary_version":"2.27-3ubuntu1.5","binary_name":"libc6-x32"},{"binary_version":"2.27-3ubuntu1.5","binary_name":"locales"},{"binary_version":"2.27-3ubuntu1.5","binary_name":"locales-all"},{"binary_version":"2.27-3ubuntu1.5","binary_name":"multiarch-support"},{"binary_version":"2.27-3ubuntu1.5","binary_name":"nscd"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5310-1.json","cves_map":{"cves":[{"id":"CVE-2016-10228","severity":[{"score":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"negligible","type":"Ubuntu"}]},{"id":"CVE-2019-25013","severity":[{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]},{"id":"CVE-2020-6096","severity":[{"score":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]},{"id":"CVE-2020-27618","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]},{"id":"CVE-2020-29562","severity":[{"score":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]},{"id":"CVE-2021-3326","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]},{"id":"CVE-2021-3999","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2021-35942","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]},{"id":"CVE-2022-23218","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]},{"id":"CVE-2022-23219","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:18.04:LTS"}}},{"package":{"name":"glibc","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/glibc@2.31-0ubuntu9.7?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.31-0ubuntu9.7"}]}],"versions":["2.30-0ubuntu2","2.30-0ubuntu3","2.31-0ubuntu5","2.31-0ubuntu6","2.31-0ubuntu7","2.31-0ubuntu9","2.31-0ubuntu9.1","2.31-0ubuntu9.2","2.31-0ubuntu9.3"],"ecosystem_specific":{"availability":"No 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required","binaries":[{"binary_version":"2.31-0ubuntu9.7","binary_name":"glibc-source"},{"binary_version":"2.31-0ubuntu9.7","binary_name":"libc-bin"},{"binary_version":"2.31-0ubuntu9.7","binary_name":"libc-dev-bin"},{"binary_version":"2.31-0ubuntu9.7","binary_name":"libc6"},{"binary_version":"2.31-0ubuntu9.7","binary_name":"libc6-amd64"},{"binary_version":"2.31-0ubuntu9.7","binary_name":"libc6-armel"},{"binary_version":"2.31-0ubuntu9.7","binary_name":"libc6-dev"},{"binary_version":"2.31-0ubuntu9.7","binary_name":"libc6-dev-amd64"},{"binary_version":"2.31-0ubuntu9.7","binary_name":"libc6-dev-armel"},{"binary_version":"2.31-0ubuntu9.7","binary_name":"libc6-dev-i386"},{"binary_version":"2.31-0ubuntu9.7","binary_name":"libc6-dev-s390"},{"binary_version":"2.31-0ubuntu9.7","binary_name":"libc6-dev-x32"},{"binary_version":"2.31-0ubuntu9.7","binary_name":"libc6-i386"},{"binary_version":"2.31-0ubuntu9.7","binary_name":"libc6-lse"},{"binary_version":"2.31-0ubuntu9.7","binary_name":"libc6-pic"},{"binary_version":"2.31-0ubuntu9.7","binary_name":"libc6-prof"},{"binary_version":"2.31-0ubuntu9.7","binary_name":"libc6-s390"},{"binary_version":"2.31-0ubuntu9.7","binary_name":"libc6-x32"},{"binary_version":"2.31-0ubuntu9.7","binary_name":"locales"},{"binary_version":"2.31-0ubuntu9.7","binary_name":"locales-all"},{"binary_version":"2.31-0ubuntu9.7","binary_name":"nscd"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5310-1.json","cves_map":{"cves":[{"id":"CVE-2016-10228","severity":[{"score":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"negligible","type":"Ubuntu"}]},{"id":"CVE-2019-25013","severity":[{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]},{"id":"CVE-2020-6096","severity":[{"score":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]},{"id":"CVE-2020-27618","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]},{"id":"CVE-2020-29562","severity":[{"score":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]},{"id":"CVE-2021-3326","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]},{"id":"CVE-2021-3999","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2021-27645","severity":[{"score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]},{"id":"CVE-2021-35942","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]},{"id":"CVE-2022-23218","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]},{"id":"CVE-2022-23219","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:20.04:LTS"}}}],"schema_version":"1.7.3"}