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CVE-2023-0568

Status Candidate

Overview

In PHP 8.0.X before 8.0.28, 8.1.X before 8.1.16 and 8.2.X before 8.2.3, core path resolution function allocate buffer one byte too small. When resolving paths with lengths close to system MAXPATHLEN setting, this may lead to the byte after the allocated buffer being overwritten with NUL value, which might lead to unauthorized data access or modification.

Related Files

Ubuntu Security Notice USN-5905-1
Posted Mar 3, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5905-1 - It was discovered that PHP incorrectly handled certain gzip files. An attacker could possibly use this issue to cause a denial of service. It was discovered that PHP incorrectly handled certain cookies. An attacker could possibly use this issue to compromise data integrity. It was discovered that PHP incorrectly handled certain inputs. An attacker could possibly use this issue to cause a crash or execute arbitrary code.

tags | advisory, denial of service, arbitrary, php
systems | linux, ubuntu
advisories | CVE-2022-31628, CVE-2022-31629, CVE-2022-31631, CVE-2023-0568, CVE-2023-0662
SHA-256 | 568ea4cc2d068c625914a2aca31e396f31df3ead8417e7cc93c9f33b2b47b9ac
Ubuntu Security Notice USN-5902-1
Posted Feb 28, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5902-1 - It was discovered that PHP incorrectly handled certain invalid Blowfish password hashes. An invalid password hash could possibly allow applications to accept any password as valid, contrary to expectations. It was discovered that PHP incorrectly handled resolving long paths. A remote attacker could possibly use this issue to obtain or modify sensitive information. It was discovered that PHP incorrectly handled a large number of parts in HTTP form uploads. A remote attacker could possibly use this issue to cause PHP to consume resources, leading to a denial of service.

tags | advisory, remote, web, denial of service, php
systems | linux, ubuntu
advisories | CVE-2023-0567, CVE-2023-0568, CVE-2023-0662
SHA-256 | d6874c5afe37c2500fc7824d66b24af765e7c0d843c7aa5688092c11c7e428fe
Debian Security Advisory 5363-1
Posted Feb 27, 2023
Authored by Debian | Site debian.org

Debian Linux Security Advisory 5363-1 - Multiple security issues were found in PHP, a widely-used open source general purpose scripting language which could result in denial of service or incorrect validation of BCrypt hashes.

tags | advisory, denial of service, php
systems | linux, debian
advisories | CVE-2022-31631, CVE-2023-0567, CVE-2023-0568, CVE-2023-0662
SHA-256 | 7ae7c33c3e28b6f24a8453dc72dcd9277d8782ff1546367e81b1eee017a28724
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