{"id":"USN-8123-1","summary":"mbedtls vulnerabilities","details":"It was discovered that Mbed TLS incorrectly handled memory allocation\nfailures. A remote attacker could possibly use this issue to crash\nthe program. This issue only affected Ubuntu 18.04 LTS and Ubuntu\n20.04 LTS. (CVE-2021-44732)\n\nJonathan Winzig discovered that Mbed TLS incorrectly handled crafted\ninputs. A remote attacker could possibly use this issue to crash the\nprogram, resulting in a denial of service. This issue only affected\nUbuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS. (CVE-2024-23775)\n\nIt was discovered that Mbed TLS incorrectly handled the TLS\nhandshake. A remote attacker could possibly use this issue to\nbreak the security guarantees of the TLS handshake.\n(CVE-2025-27810)\n\nLinh Le and Ngan Nguyen discovered that Mbed TLS incorrectly\ndocumented the behavior of a function. Application code relying\non the documented behavior might be affected. A remote attacker\ncould possibly use this issue to execute arbitrary code.\n(CVE-2025-47917)\n\nLinh Le and Ngan Nguyen discovered that Mbed TLS incorrectly handled\ncrafted input. A remote attacker could possibly use this issue to\ncrash the program, resulting in a denial of service. (CVE-2025-48965)\n\nIt was discovered that Mbed TLS incorrectly handled a race condition.\nAn attacker could possibly use this issue to extract AES keys.\n(CVE-2025-52496)\n\nLinh Le and Ngan Nguyen discovered that Mbed TLS incorrectly handled\ncertain invalid input. A remote attacker could possibly use this\nissue to crash the program, resulting in a denial of service.\n(CVE-2025-52497)","modified":"2026-03-27T17:30:15.072294981Z","published":"2026-03-25T16:22:11Z","related":["UBUNTU-CVE-2021-44732","UBUNTU-CVE-2024-23775","UBUNTU-CVE-2025-27810","UBUNTU-CVE-2025-47917","UBUNTU-CVE-2025-48965","UBUNTU-CVE-2025-52496","UBUNTU-CVE-2025-52497"],"upstream":["CVE-2021-44732","CVE-2024-23775","CVE-2025-27810","CVE-2025-47917","CVE-2025-48965","CVE-2025-52496","CVE-2025-52497","UBUNTU-CVE-2021-44732","UBUNTU-CVE-2024-23775","UBUNTU-CVE-2025-27810","UBUNTU-CVE-2025-47917","UBUNTU-CVE-2025-48965","UBUNTU-CVE-2025-52496","UBUNTU-CVE-2025-52497"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8123-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-44732"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2024-23775"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-27810"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-47917"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-48965"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-52496"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-52497"}],"affected":[{"package":{"name":"mbedtls","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/mbedtls@2.8.0-1ubuntu0.1~esm1?arch=source&distro=esm-apps/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.8.0-1ubuntu0.1~esm1"}]}],"versions":["2.5.1-1ubuntu1","2.6.0-1","2.7.0-2","2.8.0-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libmbedcrypto1","binary_version":"2.8.0-1ubuntu0.1~esm1"},{"binary_name":"libmbedtls-dev","binary_version":"2.8.0-1ubuntu0.1~esm1"},{"binary_name":"libmbedtls10","binary_version":"2.8.0-1ubuntu0.1~esm1"},{"binary_name":"libmbedx509-0","binary_version":"2.8.0-1ubuntu0.1~esm1"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:Pro:18.04:LTS","cves":[{"id":"CVE-2021-44732","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2024-23775","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2025-27810","severity":[{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2025-47917","severity":[{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/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":"medium","type":"Ubuntu"}]},{"id":"CVE-2025-48965","severity":[{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:L","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2025-52496","severity":[{"score":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2025-52497","severity":[{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8123-1.json"}},{"package":{"name":"mbedtls","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/mbedtls@2.16.4-1ubuntu2+esm1?arch=source&distro=esm-apps/focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.16.4-1ubuntu2+esm1"}]}],"versions":["2.16.2-1","2.16.3-1","2.16.4-1ubuntu2"],"ecosystem_specific":{"binaries":[{"binary_name":"libmbedcrypto3","binary_version":"2.16.4-1ubuntu2+esm1"},{"binary_name":"libmbedtls-dev","binary_version":"2.16.4-1ubuntu2+esm1"},{"binary_name":"libmbedtls12","binary_version":"2.16.4-1ubuntu2+esm1"},{"binary_name":"libmbedx509-0","binary_version":"2.16.4-1ubuntu2+esm1"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2021-44732","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2024-23775","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2025-27810","severity":[{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2025-47917","severity":[{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/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":"medium","type":"Ubuntu"}]},{"id":"CVE-2025-48965","severity":[{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:L","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2025-52496","severity":[{"score":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2025-52497","severity":[{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:Pro:20.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8123-1.json"}},{"package":{"name":"mbedtls","ecosystem":"Ubuntu:Pro:22.04:LTS","purl":"pkg:deb/ubuntu/mbedtls@2.28.0-1ubuntu0.1~esm1?arch=source&distro=esm-apps/jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.28.0-1ubuntu0.1~esm1"}]}],"versions":["2.16.9-0.1ubuntu1","2.16.11-0.1ubuntu1","2.16.11-0.3","2.28.0-1","2.28.0-1build1"],"ecosystem_specific":{"binaries":[{"binary_name":"libmbedcrypto7","binary_version":"2.28.0-1ubuntu0.1~esm1"},{"binary_name":"libmbedtls-dev","binary_version":"2.28.0-1ubuntu0.1~esm1"},{"binary_name":"libmbedtls14","binary_version":"2.28.0-1ubuntu0.1~esm1"},{"binary_name":"libmbedx509-1","binary_version":"2.28.0-1ubuntu0.1~esm1"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2024-23775","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2025-27810","severity":[{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2025-47917","severity":[{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/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":"medium","type":"Ubuntu"}]},{"id":"CVE-2025-48965","severity":[{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:L","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2025-52496","severity":[{"score":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2025-52497","severity":[{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:Pro:22.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8123-1.json"}},{"package":{"name":"mbedtls","ecosystem":"Ubuntu:Pro:24.04:LTS","purl":"pkg:deb/ubuntu/mbedtls@2.28.8-1ubuntu0.1~esm1?arch=source&distro=esm-apps/noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.28.8-1ubuntu0.1~esm1"}]}],"versions":["2.28.3-1","2.28.6-1ubuntu1","2.28.7-1ubuntu1","2.28.7-1.1ubuntu1","2.28.8-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libmbedcrypto7t64","binary_version":"2.28.8-1ubuntu0.1~esm1"},{"binary_name":"libmbedtls-dev","binary_version":"2.28.8-1ubuntu0.1~esm1"},{"binary_name":"libmbedtls14t64","binary_version":"2.28.8-1ubuntu0.1~esm1"},{"binary_name":"libmbedx509-1t64","binary_version":"2.28.8-1ubuntu0.1~esm1"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:Pro:24.04:LTS","cves":[{"id":"CVE-2025-27810","severity":[{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2025-47917","severity":[{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/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":"medium","type":"Ubuntu"}]},{"id":"CVE-2025-48965","severity":[{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:L","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2025-52496","severity":[{"score":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2025-52497","severity":[{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8123-1.json"}}],"schema_version":"1.7.5"}