USN-2914-1 (UBUNTU-CVE-2016-0702)
Vulnerability from osv_ubuntu – Published: 2016-03-01 14:38 – Updated: 2026-04-22 07:36 – Source websiteYuval Yarom, Daniel Genkin, and Nadia Heninger discovered that OpenSSL was vulnerable to a side-channel attack on modular exponentiation. On certain CPUs, a local attacker could possibly use this issue to recover RSA keys. This flaw is known as CacheBleed. (CVE-2016-0702)
Adam Langley discovered that OpenSSL incorrectly handled memory when parsing DSA private keys. A remote attacker could use this issue to cause OpenSSL to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-0705)
Guido Vranken discovered that OpenSSL incorrectly handled hex digit calculation in the BN_hex2bn function. A remote attacker could use this issue to cause OpenSSL to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-0797)
Emilia Käsper discovered that OpenSSL incorrectly handled memory when performing SRP user database lookups. A remote attacker could possibly use this issue to cause OpenSSL to consume memory, resulting in a denial of service. (CVE-2016-0798)
Guido Vranken discovered that OpenSSL incorrectly handled memory when printing very long strings. A remote attacker could use this issue to cause OpenSSL to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-0799)
{
"affected": [
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2016-0702",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2016-0705",
"severity": [
{
"score": "CVSS:3.0/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-2016-0797",
"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:3.0/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-2016-0798",
"severity": [
{
"score": "CVSS:3.0/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-2016-0799",
"severity": [
{
"score": "CVSS:3.0/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:14.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "libssl1.0.0",
"binary_version": "1.0.1f-1ubuntu2.18"
},
{
"binary_name": "openssl",
"binary_version": "1.0.1f-1ubuntu2.18"
}
]
},
"package": {
"ecosystem": "Ubuntu:14.04:LTS",
"name": "openssl",
"purl": "pkg:deb/ubuntu/openssl@1.0.1f-1ubuntu2.18?arch=source\u0026distro=trusty"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.0.1f-1ubuntu2.18"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.0.1e-3ubuntu1",
"1.0.1e-4ubuntu1",
"1.0.1e-4ubuntu2",
"1.0.1e-4ubuntu3",
"1.0.1e-4ubuntu4",
"1.0.1f-1ubuntu1",
"1.0.1f-1ubuntu2",
"1.0.1f-1ubuntu2.1",
"1.0.1f-1ubuntu2.2",
"1.0.1f-1ubuntu2.3",
"1.0.1f-1ubuntu2.4",
"1.0.1f-1ubuntu2.5",
"1.0.1f-1ubuntu2.7",
"1.0.1f-1ubuntu2.8",
"1.0.1f-1ubuntu2.11",
"1.0.1f-1ubuntu2.12",
"1.0.1f-1ubuntu2.15",
"1.0.1f-1ubuntu2.16",
"1.0.1f-1ubuntu2.17"
]
}
],
"aliases": [],
"details": "Yuval Yarom, Daniel Genkin, and Nadia Heninger discovered that OpenSSL was\nvulnerable to a side-channel attack on modular exponentiation. On certain\nCPUs, a local attacker could possibly use this issue to recover RSA keys.\nThis flaw is known as CacheBleed. (CVE-2016-0702)\n\nAdam Langley discovered that OpenSSL incorrectly handled memory when\nparsing DSA private keys. A remote attacker could use this issue to cause\nOpenSSL to crash, resulting in a denial of service, or possibly execute\narbitrary code. (CVE-2016-0705)\n\nGuido Vranken discovered that OpenSSL incorrectly handled hex digit\ncalculation in the BN_hex2bn function. A remote attacker could use this\nissue to cause OpenSSL to crash, resulting in a denial of service, or\npossibly execute arbitrary code. (CVE-2016-0797)\n\nEmilia K\u00e4sper discovered that OpenSSL incorrectly handled memory when\nperforming SRP user database lookups. A remote attacker could possibly use\nthis issue to cause OpenSSL to consume memory, resulting in a denial of\nservice. (CVE-2016-0798)\n\nGuido Vranken discovered that OpenSSL incorrectly handled memory when\nprinting very long strings. A remote attacker could use this issue to cause\nOpenSSL to crash, resulting in a denial of service, or possibly execute\narbitrary code. (CVE-2016-0799)\n",
"id": "USN-2914-1",
"modified": "2026-04-22T07:36:33Z",
"published": "2016-03-01T14:38:48Z",
"references": [
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-2914-1"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2016-0702"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2016-0705"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2016-0797"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2016-0798"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2016-0799"
}
],
"related": [],
"schema_version": "1.7.0",
"summary": "openssl vulnerabilities",
"upstream": [
"UBUNTU-CVE-2016-0702",
"UBUNTU-CVE-2016-0705",
"UBUNTU-CVE-2016-0797",
"UBUNTU-CVE-2016-0798",
"UBUNTU-CVE-2016-0799"
]
}
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