CVE-2020-7060
global buffer-overflow in mbfl_filt_conv_big5_wchar
CRITICAL 9.1EPSS 8.9%
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.
- Affected
- PHP Group · PHP
- CVSS v3.1 NVD
- 9.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H - CVSS v3.1 PHP
- 6.5 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L - CVSS v2.0 NVD
- 6.4 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:P - EPSS
- 8.89% chance of exploitation in the next 30 days, 95th percentile
- Published
- 2020-02-10
- Updated
- 2024-09-17
Proof-of-concept exploits (1)
Security advisories
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00023.html
- https://lists.debian.org/debian-lts-announce/2020/02/msg00030.html
- https://seclists.org/bugtraq/2020/Feb/27
- https://seclists.org/bugtraq/2020/Feb/31
- https://seclists.org/bugtraq/2021/Jan/3
- https://security.gentoo.org/glsa/202003-57
- https://security.netapp.com/advisory/ntap-20200221-0002
- https://usn.ubuntu.com/4279-1
- https://www.debian.org/security/2020/dsa-4626
- https://www.debian.org/security/2020/dsa-4628
- https://www.oracle.com/security-alerts/cpuApr2021.html
- https://www.oracle.com/security-alerts/cpujul2020.html
- https://www.tenable.com/security/tns-2021-14