USN-5051-1 fixed a vulnerability in OpenSSL. This update provides the corresponding update for the openssl1.0 package in Ubuntu 18.04 LTS.
Original advisory details:
Ingo Schwarze discovered that OpenSSL incorrectly handled certain ASN.1 strings. A remote attacker could use this issue to cause OpenSSL to crash, resulting in a denial of service, or possibly obtain sensitive information. (CVE-2021-3712)
{
"availability": "No subscription required",
"binaries": [
{
"binary_version": "1.0.2n-1ubuntu5.7",
"binary_name": "libssl1.0-dev"
},
{
"binary_version": "1.0.2n-1ubuntu5.7",
"binary_name": "libssl1.0.0"
},
{
"binary_version": "1.0.2n-1ubuntu5.7",
"binary_name": "openssl1.0"
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}
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5051-3.json"
{
"cves": [
{
"id": "CVE-2021-3712",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
}
],
"ecosystem": "Ubuntu:18.04:LTS"
}