DEBIAN-CVE-2018-3639

Advisory lineage Upstream: 1 Downstream: 8
Upstream
CVE-2018-3639
Published: 22 May 2018, 12:29
Last modified:28 Apr 2026, 20:19

Vulnerability Summary

Overall Risk (default)
low
22/100
CVSS Score
5.5 MEDIUM
3.1 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

22 May 2018, 12:29
Published
Vulnerability first disclosed
28 Apr 2026, 20:19
Last Modified
Vulnerability information updated

Description

Systems with microprocessors utilizing speculative execution and speculative execution of memory reads before the addresses of all prior memory writes are known may allow unauthorized disclosure of information to an attacker with local user access via a side-channel analysis, aka Speculative Store Bypass (SSB), Variant 4.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected Systems

  • debian•intel-microcode

    < 3.20180703.1 | < 3.20180703.1 | < 3.20180703.1 | < 3.20180703.1

  • debian•linux

    < 4.16.12-1 | < 4.16.12-1 | < 4.16.12-1 | < 4.16.12-1

  • debian•xen

    < 4.8.3+xsa262+shim4.10.0+comet3-1+deb9u7 | < 4.8.3+xsa262+shim4.10.0+comet3-1+deb9u7 | < 4.8.3+xsa262+shim4.10.0+comet3-1+deb9u7 | < 4.8.3+xsa262+shim4.10.0+comet3-1+deb9u7

References (1)