{"document":{"aggregate_severity":{"namespace":"https://www.suse.com/support/security/rating/","text":"moderate"},"category":"csaf_vex","csaf_version":"2.0","distribution":{"text":"Copyright 2024 SUSE LLC. All rights reserved.","tlp":{"label":"WHITE","url":"https://www.first.org/tlp/"}},"lang":"en","notes":[{"category":"summary","text":"SUSE CVE-2020-10932","title":"Title"},{"category":"description","text":"An issue was discovered in Arm Mbed TLS before 2.16.6 and 2.7.x before 2.7.15. An attacker that can get precise enough side-channel measurements can recover the long-term ECDSA private key by (1) reconstructing the projective coordinate of the result of scalar multiplication by exploiting side channels in the conversion to affine coordinates; (2) using an attack described by Naccache, Smart, and Stern in 2003 to recover a few bits of the ephemeral scalar from those projective coordinates via several measurements; and (3) using a lattice attack to get from there to the long-term ECDSA private key used for the signatures. Typically an attacker would have sufficient access when attacking an SGX enclave and controlling the untrusted OS.","title":"Description of the CVE"},{"category":"legal_disclaimer","text":"CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).","title":"Terms of use"}],"publisher":{"category":"vendor","contact_details":"https://www.suse.com/support/security/contact/","name":"SUSE Product Security Team","namespace":"https://www.suse.com/"},"references":[{"category":"external","summary":"CVE-2020-10932","url":"https://www.suse.com/security/cve/CVE-2020-10932"},{"category":"external","summary":"SUSE Security Ratings","url":"https://www.suse.com/support/security/rating/"},{"category":"external","summary":"SUSE Bug 1181468 for CVE-2020-10932","url":"https://bugzilla.suse.com/1181468"},{"category":"external","summary":"Advisory link for openSUSE-SU-2021:0384-1","url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/JXL26ADEMUDQB634BGFJBSDD6LVNPAKC/"},{"category":"external","summary":"Advisory link for openSUSE-SU-2021:0397-1","url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/24S6SRIXKQUW53S4LWIAJUR5ZBOCJPEA/"}],"title":"SUSE CVE CVE-2020-10932","tracking":{"current_release_date":"2025-03-15T10:03:58Z","generator":{"date":"2023-02-15T04:00:08Z","engine":{"name":"cve-database.git:bin/generate-csaf-vex.pl","version":"1"}},"id":"CVE-2020-10932","initial_release_date":"2023-02-15T04:00:08Z","revision_history":[{"date":"2023-02-15T04:00:08Z","number":"2","summary":"Current version"},{"date":"2025-01-01T05:44:20Z","number":"3","summary":"Current version"},{"date":"2025-02-15T06:21:42Z","number":"4","summary":"Current version"},{"date":"2025-02-17T06:43:22Z","number":"5","summary":"Current 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Mbed TLS before 2.16.6 and 2.7.x before 2.7.15. An attacker that can get precise enough side-channel measurements can recover the long-term ECDSA private key by (1) reconstructing the projective coordinate of the result of scalar multiplication by exploiting side channels in the conversion to affine coordinates; (2) using an attack described by Naccache, Smart, and Stern in 2003 to recover a few bits of the ephemeral scalar from those projective coordinates via several measurements; and (3) using a lattice attack to get from there to the long-term ECDSA private key used for the signatures. Typically an attacker would have sufficient access when attacking an SGX enclave and controlling the untrusted OS.","title":"CVE description"}],"product_status":{"recommended":["SUSE Package Hub 15 SP2:libmbedcrypto3-2.16.9-bp152.2.3.1","SUSE Package Hub 15 SP2:libmbedcrypto3-64bit-2.16.9-bp152.2.3.1","SUSE Package Hub 15 SP2:libmbedtls12-2.16.9-bp152.2.3.1","SUSE Package Hub 15 SP2:libmbedtls12-64bit-2.16.9-bp152.2.3.1","SUSE Package Hub 15 SP2:libmbedx509-0-2.16.9-bp152.2.3.1","SUSE Package Hub 15 SP2:libmbedx509-0-64bit-2.16.9-bp152.2.3.1","SUSE Package Hub 15 SP2:mbedtls-devel-2.16.9-bp152.2.3.1","openSUSE Leap 15.2:libmbedcrypto3-2.16.9-lp152.2.3.1","openSUSE Leap 15.2:libmbedcrypto3-32bit-2.16.9-lp152.2.3.1","openSUSE Leap 15.2:libmbedtls12-2.16.9-lp152.2.3.1","openSUSE Leap 15.2:libmbedtls12-32bit-2.16.9-lp152.2.3.1","openSUSE Leap 15.2:libmbedx509-0-2.16.9-lp152.2.3.1","openSUSE Leap 15.2:libmbedx509-0-32bit-2.16.9-lp152.2.3.1","openSUSE Leap 15.2:mbedtls-devel-2.16.9-lp152.2.3.1"]},"references":[{"category":"external","summary":"CVE-2020-10932","url":"https://www.suse.com/security/cve/CVE-2020-10932"},{"category":"external","summary":"SUSE Security Ratings","url":"https://www.suse.com/support/security/rating/"},{"category":"external","summary":"SUSE Bug 1181468 for CVE-2020-10932","url":"https://bugzilla.suse.com/1181468"},{"category":"external","summary":"Advisory link for openSUSE-SU-2021:0384-1","url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/JXL26ADEMUDQB634BGFJBSDD6LVNPAKC/"},{"category":"external","summary":"Advisory link for openSUSE-SU-2021:0397-1","url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/24S6SRIXKQUW53S4LWIAJUR5ZBOCJPEA/"}],"remediations":[{"category":"vendor_fix","details":"To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n","product_ids":["SUSE Package Hub 15 SP2:libmbedcrypto3-2.16.9-bp152.2.3.1","SUSE Package Hub 15 SP2:libmbedcrypto3-64bit-2.16.9-bp152.2.3.1","SUSE Package Hub 15 SP2:libmbedtls12-2.16.9-bp152.2.3.1","SUSE Package Hub 15 SP2:libmbedtls12-64bit-2.16.9-bp152.2.3.1","SUSE Package Hub 15 SP2:libmbedx509-0-2.16.9-bp152.2.3.1","SUSE Package Hub 15 SP2:libmbedx509-0-64bit-2.16.9-bp152.2.3.1","SUSE Package Hub 15 SP2:mbedtls-devel-2.16.9-bp152.2.3.1","openSUSE Leap 15.2:libmbedcrypto3-2.16.9-lp152.2.3.1","openSUSE Leap 15.2:libmbedcrypto3-32bit-2.16.9-lp152.2.3.1","openSUSE Leap 15.2:libmbedtls12-2.16.9-lp152.2.3.1","openSUSE Leap 15.2:libmbedtls12-32bit-2.16.9-lp152.2.3.1","openSUSE Leap 15.2:libmbedx509-0-2.16.9-lp152.2.3.1","openSUSE Leap 15.2:libmbedx509-0-32bit-2.16.9-lp152.2.3.1","openSUSE Leap 15.2:mbedtls-devel-2.16.9-lp152.2.3.1"]}],"scores":[{"cvss_v3":{"baseScore":4.7,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"products":["SUSE Package Hub 15 SP2:libmbedcrypto3-2.16.9-bp152.2.3.1","SUSE Package Hub 15 SP2:libmbedcrypto3-64bit-2.16.9-bp152.2.3.1","SUSE Package Hub 15 SP2:libmbedtls12-2.16.9-bp152.2.3.1","SUSE Package Hub 15 SP2:libmbedtls12-64bit-2.16.9-bp152.2.3.1","SUSE Package Hub 15 SP2:libmbedx509-0-2.16.9-bp152.2.3.1","SUSE Package Hub 15 SP2:libmbedx509-0-64bit-2.16.9-bp152.2.3.1","SUSE Package Hub 15 SP2:mbedtls-devel-2.16.9-bp152.2.3.1","openSUSE Leap 15.2:libmbedcrypto3-2.16.9-lp152.2.3.1","openSUSE Leap 15.2:libmbedcrypto3-32bit-2.16.9-lp152.2.3.1","openSUSE Leap 15.2:libmbedtls12-2.16.9-lp152.2.3.1","openSUSE Leap 15.2:libmbedtls12-32bit-2.16.9-lp152.2.3.1","openSUSE Leap 15.2:libmbedx509-0-2.16.9-lp152.2.3.1","openSUSE Leap 15.2:libmbedx509-0-32bit-2.16.9-lp152.2.3.1","openSUSE Leap 15.2:mbedtls-devel-2.16.9-lp152.2.3.1"]}],"threats":[{"category":"impact","date":"2020-04-15T21:50:55Z","details":"moderate"}],"title":"CVE-2020-10932"}]}