Summary
USN-6305-1 fixed several vulnerabilities in PHP. This update provides
the corresponding update for Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 20.04 LTS.
Original advisory details:
It was discovered that PHP incorrectly handled certain XML files.
An attacker could possibly use this issue to expose sensitive information.
(CVE-2023-3823)
It was discovered that PHP incorrectly handled certain PHAR files.
An attacker could possibly use this issue to cause a crash,
expose sensitive information or execute arbitrary code.
(CVE-2023-3824)
Fixed packages 3
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 20.04 LTS 20.04:LTS | php7.4 | 7.4.3-4ubuntu2.20 |
| Ubuntu · Pro 16.04 LTS Pro:16.04:LTS | php7.0 | 7.0.33-0ubuntu0.16.04.16+esm8 |
| Ubuntu · Pro 18.04 LTS Pro:18.04:LTS | php7.2 | 7.2.24-0ubuntu0.18.04.17+esm2 |
Vulnerabilities 2
-
Critical 9.4
Buffer overflow and overread in phar_dir_read()
In PHP version 8.0.* before 8.0.30, 8.1.* before 8.1.22, and 8.2.* before 8.2.8, when loading phar file, while reading PHAR directory entries, insufficient length checking may lead to a stack buffer overflow, leading potentially to memory corruption or RCE.
-
High 8.6
Security issue with external entity loading in XML without enabling it
In PHP versions 8.0.* before 8.0.30, 8.1.* before 8.1.22, and 8.2.* before 8.2.8 various XML functions rely on libxml global state to track configuration variables, like whether external entities are loaded. This state is assumed to be unchanged unless the us…