CVE-2020-7066
MEDIUM severity · CVSS 5.3 · CWE-170
5.3CVSS MEDIUM
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactLow
Integrity impactNone
Availability impactNone
Exploit probability (EPSS)3%
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://bugs.php.net/bug.php?id=79329 ↗
Additional information
- NVD record
- https://bugs.php.net/bug.php?id=79329Patch
- https://www.tenable.com/security/tns-2021-14Patch
- http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00025.htmlAdvisory
- https://lists.debian.org/debian-lts-announce/2020/04/msg00021.htmlAdvisory
- https://security.netapp.com/advisory/ntap-20200403-0001/Advisory
- https://usn.ubuntu.com/4330-2/Advisory
- https://www.debian.org/security/2020/dsa-4717Advisory
- https://www.debian.org/security/2020/dsa-4719Advisory