CVE-2020-7060

moderate-risk
Published 2020-02-10

When using certain mbstring functions to convert multibyte encodings, in PHP versions 7.2.x below 7.2.27, 7.3.x below 7.3.14 and 7.4.x below 7.4.2 it is possible to supply data that will cause function mbfl_filt_conv_big5_wchar to read past the allocated buffer. This may lead to information disclosure or crash.

Do I need to act?

~
6.4% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.5/10 Medium
NETWORK / LOW complexity

Affected Products (5)

Php

Affected Vendors

Debian Oracle Php Opensuse Tenable

References (28)

Mailing List http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00023.html
Exploit https://bugs.php.net/bug.php?id=79037
Mailing List https://lists.debian.org/debian-lts-announce/2020/02/msg00030.html
Mailing List https://seclists.org/bugtraq/2020/Feb/27
Mailing List https://seclists.org/bugtraq/2020/Feb/31
Mailing List https://seclists.org/bugtraq/2021/Jan/3
Third Party Advisory https://security.gentoo.org/glsa/202003-57
Mailing List https://security.netapp.com/advisory/ntap-20200221-0002/
Patch https://usn.ubuntu.com/4279-1/
Third Party Advisory https://www.debian.org/security/2020/dsa-4626
Third Party Advisory https://www.debian.org/security/2020/dsa-4628
Third Party Advisory https://www.oracle.com/security-alerts/cpuApr2021.html
Third Party Advisory https://www.oracle.com/security-alerts/cpujul2020.html
Patch https://www.tenable.com/security/tns-2021-14
Mailing List http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00023.html
Exploit https://bugs.php.net/bug.php?id=79037
Mailing List https://lists.debian.org/debian-lts-announce/2020/02/msg00030.html
Mailing List https://seclists.org/bugtraq/2020/Feb/27
Mailing List https://seclists.org/bugtraq/2020/Feb/31
Mailing List https://seclists.org/bugtraq/2021/Jan/3
and 8 more references
45
/ 100
moderate-risk
Severity 24/34 · High
Exploitability 9/34 · Low
Exposure 12/34 · Low