UBUNTU-CVE-2018-16868
- Source
- https://ubuntu.com/security/CVE-2018-16868
- Import Source
- https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-16868.json
- JSON Data
- https://api.osv.dev/v1/vulns/UBUNTU-CVE-2018-16868
- Upstream
- Published
- 2018-12-03T14:29:00Z
- Modified
- 2026-07-22T11:33:20Z
- Severity
-
- 5.6 (Medium) CVSS_V3 - CVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N CVSS Calculator
- 4.7 (Medium) CVSS_V3 - CVSS:3.0/AV:P/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N CVSS Calculator
- 5.6 (Medium) CVSS_V3 - CVSS:3.0/AV:P/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N CVSS Calculator
- Ubuntu - low
- Summary
- [none]
- Details
-
A Bleichenbacher type side-channel based padding oracle attack was found in the way gnutls handles verification of RSA decrypted PKCS#1 v1.5 data. An attacker who is able to run process on the same physical core as the victim process, could use this to extract plaintext or in some cases downgrade any TLS connections to a vulnerable server.
- References
Affected packages
Ubuntu:Pro:14.04:LTS / gnutls26
Package
- Name
- gnutls26
- Purl
- pkg:deb/ubuntu/gnutls26?arch=source&distro=esm-infra-legacy%2Ftrusty
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affected
Affected versions
2.*
2.12.23-1ubuntu4
2.12.23-1ubuntu5
2.12.23-12ubuntu1
2.12.23-12ubuntu2
2.12.23-12ubuntu2.1
2.12.23-12ubuntu2.2
2.12.23-12ubuntu2.3
2.12.23-12ubuntu2.4
2.12.23-12ubuntu2.5
2.12.23-12ubuntu2.6
2.12.23-12ubuntu2.7
2.12.23-12ubuntu2.8
2.12.23-12ubuntu2.10+esm1
Ecosystem specific
{
"binaries": [
{
"binary_name": "gnutls-bin",
"binary_version": "3.0.11+really2.12.23-12ubuntu2.10+esm1"
},
{
"binary_name": "libgnutls-openssl27",
"binary_version": "2.12.23-12ubuntu2.10+esm1"
},
{
"binary_name": "libgnutls26",
"binary_version": "2.12.23-12ubuntu2.10+esm1"
},
{
"binary_name": "libgnutlsxx27",
"binary_version": "2.12.23-12ubuntu2.10+esm1"
}
]
}
Ubuntu:Pro:16.04:LTS / gnutls28
Package
- Name
- gnutls28
- Purl
- pkg:deb/ubuntu/gnutls28?arch=source&distro=esm-infra-legacy%2Fxenial
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affected
Affected versions
3.*
3.3.15-5ubuntu2
3.3.18-1ubuntu1
3.3.20-1ubuntu1
3.4.9-2ubuntu1
3.4.10-4ubuntu1
3.4.10-4ubuntu1.1
3.4.10-4ubuntu1.2
3.4.10-4ubuntu1.3
3.4.10-4ubuntu1.4
3.4.10-4ubuntu1.5
3.4.10-4ubuntu1.6
3.4.10-4ubuntu1.7
3.4.10-4ubuntu1.8
3.4.10-4ubuntu1.9
3.4.10-4ubuntu1.9+esm1
3.4.10-4ubuntu1.9+esm2
3.4.10-4ubuntu1.9+esm3
3.4.10-4ubuntu1.9+esm4
Ecosystem specific
{
"binaries": [
{
"binary_name": "gnutls-bin",
"binary_version": "3.4.10-4ubuntu1.9+esm4"
},
{
"binary_name": "guile-gnutls",
"binary_version": "3.4.10-4ubuntu1.9+esm4"
},
{
"binary_name": "libgnutls-openssl27",
"binary_version": "3.4.10-4ubuntu1.9+esm4"
},
{
"binary_name": "libgnutls30",
"binary_version": "3.4.10-4ubuntu1.9+esm4"
},
{
"binary_name": "libgnutlsxx28",
"binary_version": "3.4.10-4ubuntu1.9+esm4"
}
]
}
Ubuntu:Pro:18.04:LTS / gnutls28
Package
- Name
- gnutls28
- Purl
- pkg:deb/ubuntu/gnutls28?arch=source&distro=esm-infra%2Fbionic
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affected
Affected versions
3.*
3.5.8-6ubuntu3
3.5.17-1ubuntu1
3.5.17-1ubuntu3
3.5.18-1ubuntu1
3.5.18-1ubuntu1.1
3.5.18-1ubuntu1.2
3.5.18-1ubuntu1.3
3.5.18-1ubuntu1.4
3.5.18-1ubuntu1.5
3.5.18-1ubuntu1.6
3.5.18-1ubuntu1.6+esm1
3.5.18-1ubuntu1.6+esm2
3.5.18-1ubuntu1.6+esm3
3.5.18-1ubuntu1.6+esm4
Ecosystem specific
{
"binaries": [
{
"binary_name": "gnutls-bin",
"binary_version": "3.5.18-1ubuntu1.6+esm4"
},
{
"binary_name": "libgnutls-dane0",
"binary_version": "3.5.18-1ubuntu1.6+esm4"
},
{
"binary_name": "libgnutls-openssl27",
"binary_version": "3.5.18-1ubuntu1.6+esm4"
},
{
"binary_name": "libgnutls30",
"binary_version": "3.5.18-1ubuntu1.6+esm4"
},
{
"binary_name": "libgnutlsxx28",
"binary_version": "3.5.18-1ubuntu1.6+esm4"
}
]
}