UBUNTU-CVE-2020-7066

Advisory lineage Upstream: 1 Downstream: 2
Upstream
CVE-2020-7066
Published: 01 Apr 2020, 04:15
Last modified:22 Apr 2026, 12:43

Vulnerability Summary

Overall Risk (default)
low
21/100
CVSS Score
5.3 MEDIUM
3.1 (osv_ubuntu)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

01 Apr 2020, 04:15
Published
Vulnerability first disclosed
22 Apr 2026, 12:43
Last Modified
Vulnerability information updated

Description

In PHP versions 7.2.x below 7.2.29, 7.3.x below 7.3.16 and 7.4.x below 7.4.4, while using get_headers() with user-supplied URL, if the URL contains zero (\0) character, the URL will be silently truncated at it. This may cause some software to make incorrect assumptions about the target of the get_headers() and possibly send some information to a wrong server.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected Systems

  • ubuntu•php5

    < 5.5.9+dfsg-1ubuntu4.29+esm11

  • ubuntu•php7.0

    < 7.0.33-0ubuntu0.16.04.14

  • ubuntu•php7.2

    < 7.2.24-0ubuntu0.18.04.4

  • ubuntu•php7.4

    < 7.4.3-4ubuntu1.1

References (5)