USN-6499-1 fixed vulnerabilities in GnuTLS. This update provides the corresponding update for Ubuntu 18.04 LTS.
Original advisory details:
It was discovered that GnuTLS had a timing side-channel when handling certain RSA-PSK key exchanges. A remote attacker could possibly use this issue to recover sensitive information.
{
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "gnutls-bin",
"binary_version": "3.5.18-1ubuntu1.6+esm1"
},
{
"binary_name": "libgnutls-dane0",
"binary_version": "3.5.18-1ubuntu1.6+esm1"
},
{
"binary_name": "libgnutls-openssl27",
"binary_version": "3.5.18-1ubuntu1.6+esm1"
},
{
"binary_name": "libgnutls28-dev",
"binary_version": "3.5.18-1ubuntu1.6+esm1"
},
{
"binary_name": "libgnutls30",
"binary_version": "3.5.18-1ubuntu1.6+esm1"
},
{
"binary_name": "libgnutlsxx28",
"binary_version": "3.5.18-1ubuntu1.6+esm1"
}
]
}
{
"cves": [
{
"id": "CVE-2023-5981",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
}
],
"ecosystem": "Ubuntu:Pro:18.04:LTS"
}