ALPINE-CVE-2018-0732

Advisory lineage Upstream: 1 Downstream: 0
Upstream
CVE-2018-0732
Published: 12 Jun 2018, 13:29
Last modified:19 Nov 2025, 06:12

Vulnerability Summary

Overall Risk (default)
medium
30/100
CVSS Score
7.5 HIGH
3.1 (osv_alpine)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

12 Jun 2018, 13:29
Published
Vulnerability first disclosed
19 Nov 2025, 06:12
Last Modified
Vulnerability information updated

Description

During key agreement in a TLS handshake using a DH(E) based ciphersuite a malicious server can send a very large prime value to the client. This will cause the client to spend an unreasonably long period of time generating a key for this prime resulting in a hang until the client has finished. This could be exploited in a Denial Of Service attack. Fixed in OpenSSL 1.1.0i-dev (Affected 1.1.0-1.1.0h). Fixed in OpenSSL 1.0.2p-dev (Affected 1.0.2-1.0.2o).

CVSS Metrics

  • v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Systems

  • alpine•libressl

    < 2.7.4-r0 | < 2.7.4-r0 | < 2.7.4-r0 | < 2.7.4-r0 | < 2.6.5-r0 | < 2.7.4-r0 | < 2.7.4-r0

  • alpine•openssl

    < 1.0.2o-r1 | < 1.0.2o-r1 | < 1.0.2o-r1 | < 1.0.2o-r1 | < 1.0.2o-r1 | < 1.0.2o-r1

References (1)