{ "document": { "aggregate_severity": { "text": "medium" }, "category": "csaf_security_advisory", "csaf_version": "2.0", "distribution": { "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "en", "notes": [ { "category": "description", "text": "Libgcrypt before 1.7.10 and 1.8.x before 1.8.3 allows a memory-cache side-channel attack on ECDSA signatures that can be mitigated through the use of blinding during the signing process in the _gcry_ecc_ecdsa_sign function in cipher/ecc-ecdsa.c, aka the Return Of the Hidden Number Problem or ROHNP. To discover an ECDSA key, the attacker needs access to either the local machine or a different virtual machine on the same physical host.", "title": "Vulnerability Description" } ], "publisher": { "category": "other", "contact_details": "gdt@cpan.org", "name": "giterlizzi", "namespace": "https://github.com/giterlizzi/" }, "references": [ { "category": "self", "summary": "CPANSA-Alien-GCrypt-2018-0495-libgcrypt JSON", "url": "https://raw.githubusercontent.com/giterlizzi/perl-CPANSA-CSAF/develop/csaf/white/2018/cpansa-alien-gcrypt-2018-0495-libgcrypt.json" }, { "category": "external", "summary": "https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem/", "url": "https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem/" }, { "category": "external", "summary": "https://lists.gnupg.org/pipermail/gnupg-announce/2018q2/000426.html", "url": "https://lists.gnupg.org/pipermail/gnupg-announce/2018q2/000426.html" }, { "category": "external", "summary": "https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=9010d1576e278a4274ad3f4aa15776c28f6ba965", "url": "https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=9010d1576e278a4274ad3f4aa15776c28f6ba965" }, { "category": "external", "summary": "https://dev.gnupg.org/T4011", "url": "https://dev.gnupg.org/T4011" }, { "category": "external", "summary": "https://www.debian.org/security/2018/dsa-4231", "url": "https://www.debian.org/security/2018/dsa-4231" }, { "category": "external", "summary": "https://usn.ubuntu.com/3689-2/", "url": "https://usn.ubuntu.com/3689-2/" }, { "category": "external", "summary": "https://usn.ubuntu.com/3689-1/", "url": "https://usn.ubuntu.com/3689-1/" }, { "category": "external", "summary": "http://www.securitytracker.com/id/1041147", "url": "http://www.securitytracker.com/id/1041147" }, { "category": "external", "summary": "http://www.securitytracker.com/id/1041144", "url": "http://www.securitytracker.com/id/1041144" }, { "category": "external", "summary": "https://usn.ubuntu.com/3692-2/", "url": "https://usn.ubuntu.com/3692-2/" }, { "category": "external", "summary": "https://usn.ubuntu.com/3692-1/", "url": "https://usn.ubuntu.com/3692-1/" }, { "category": "external", "summary": "https://lists.debian.org/debian-lts-announce/2018/06/msg00013.html", "url": "https://lists.debian.org/debian-lts-announce/2018/06/msg00013.html" }, { "category": "external", "summary": "https://access.redhat.com/errata/RHSA-2018:3221", "url": "https://access.redhat.com/errata/RHSA-2018:3221" }, { "category": "external", "summary": "https://access.redhat.com/errata/RHSA-2018:3505", "url": "https://access.redhat.com/errata/RHSA-2018:3505" }, { "category": "external", "summary": "https://usn.ubuntu.com/3850-1/", "url": "https://usn.ubuntu.com/3850-1/" }, { "category": "external", "summary": "https://usn.ubuntu.com/3850-2/", "url": "https://usn.ubuntu.com/3850-2/" }, { "category": "external", "summary": "https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html", "url": "https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html" }, { "category": "external", "summary": "https://access.redhat.com/errata/RHSA-2019:1297", "url": "https://access.redhat.com/errata/RHSA-2019:1297" }, { "category": "external", "summary": "https://access.redhat.com/errata/RHSA-2019:1296", "url": "https://access.redhat.com/errata/RHSA-2019:1296" }, { "category": "external", "summary": "https://access.redhat.com/errata/RHSA-2019:1543", "url": "https://access.redhat.com/errata/RHSA-2019:1543" }, { "category": "external", "summary": "https://access.redhat.com/errata/RHSA-2019:2237", "url": "https://access.redhat.com/errata/RHSA-2019:2237" }, { "category": "external", "summary": "CVE-2018-0495 (NVD)", "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-0495" } ], "title": "Alien-GCrypt vulnerability", "tracking": { "current_release_date": "2018-06-13T00:00:00", "generator": { "engine": { "name": "CSAF Perl Toolkit", "version": "0.26" } }, "id": "CPANSA-Alien-GCrypt-2018-0495-libgcrypt", "initial_release_date": "2018-06-13T00:00:00", "revision_history": [ { "date": "2018-06-13T00:00:00", "number": "1", "summary": "First release" } ], "status": "final", "version": "1" } }, "product_tree": { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:cpan/>=1.6.2.0|<=1.6.2.1", "product": { "name": "Alien-GCrypt greater than or equal 1.6.2.0 and less than or equal 1.6.2.1", "product_id": "CSAFPID-0001", "product_identification_helper": { "purl": "pkg:cpan/Alien-GCrypt" } } } ], "category": "product_name", "name": "Alien-GCrypt" } ] }, "vulnerabilities": [ { "cve": "CVE-2018-0495", "cwe": { "id": "CWE-203", "name": "Observable Discrepancy" }, "notes": [ { "category": "description", "text": "Libgcrypt before 1.7.10 and 1.8.x before 1.8.3 allows a memory-cache side-channel attack on ECDSA signatures that can be mitigated through the use of blinding during the signing process in the _gcry_ecc_ecdsa_sign function in cipher/ecc-ecdsa.c, aka the Return Of the Hidden Number Problem or ROHNP. To discover an ECDSA key, the attacker needs access to either the local machine or a different virtual machine on the same physical host.", "title": "Vulnerability Description" } ], "product_status": { "known_affected": [ "CSAFPID-0001" ] }, "scores": [ { "cvss_v2": { "baseScore": 1.9, "vectorString": "AV:L/AC:M/Au:N/C:P/I:N/A:N", "version": "2.0" }, "cvss_v3": { "baseScore": 4.7, "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.0" }, "products": [ "CSAFPID-0001" ] } ] } ] }