UBUNTU-CVE-2018-0735

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Source
https://ubuntu.com/security/CVE-2018-0735
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-0735.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2018-0735
Upstream
Downstream
Related
Published
2018-10-29T00:00:00Z
Modified
2025-07-18T16:44:21Z
Severity
  • 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
  • 5.9 (Medium) CVSS_V3 - CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
  • Ubuntu - low
Summary
[none]
Details

The OpenSSL ECDSA signature algorithm has been shown to be vulnerable to a timing side channel attack. An attacker could use variations in the signing algorithm to recover the private key. Fixed in OpenSSL 1.1.0j (Affected 1.1.0-1.1.0i). Fixed in OpenSSL 1.1.1a (Affected 1.1.1).

References

Affected packages

Ubuntu:18.04:LTS / openssl

Package

Name
openssl
Purl
pkg:deb/ubuntu/openssl@1.1.0g-2ubuntu4.3?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.1.0g-2ubuntu4.3

Affected versions

1.*

1.0.2g-1ubuntu13
1.0.2g-1ubuntu14
1.0.2n-1ubuntu1
1.1.0g-2ubuntu1
1.1.0g-2ubuntu2
1.1.0g-2ubuntu3
1.1.0g-2ubuntu4
1.1.0g-2ubuntu4.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "libcrypto1.1-udeb",
            "binary_version": "1.1.0g-2ubuntu4.3"
        },
        {
            "binary_name": "libssl-dev",
            "binary_version": "1.1.0g-2ubuntu4.3"
        },
        {
            "binary_name": "libssl-doc",
            "binary_version": "1.1.0g-2ubuntu4.3"
        },
        {
            "binary_name": "libssl1.1",
            "binary_version": "1.1.0g-2ubuntu4.3"
        },
        {
            "binary_name": "libssl1.1-dbgsym",
            "binary_version": "1.1.0g-2ubuntu4.3"
        },
        {
            "binary_name": "libssl1.1-udeb",
            "binary_version": "1.1.0g-2ubuntu4.3"
        },
        {
            "binary_name": "openssl",
            "binary_version": "1.1.0g-2ubuntu4.3"
        },
        {
            "binary_name": "openssl-dbgsym",
            "binary_version": "1.1.0g-2ubuntu4.3"
        }
    ]
}