CVE-2023-23457 Upx: segv on packlinuxelf64::invert_pt_dynamic() in p_lx_elf.cpp

What is CVE-2023-23457?

CVE-2023-23457 is a medium-severity denial of service vulnerability in Fedoraproject Fedora, published on 12 Jan 2023. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

A Segmentation fault was found in UPX in PackLinuxElf64::invert_pt_dynamic() in p_lx_elf.cpp. An attacker with a crafted input file allows invalid memory address access that could lead to a denial of service.

Weakness: CWE-119

Which versions are affected by CVE-2023-23457?

It affects 2 products.

Products include Fedoraproject Fedora, Upx Upx.

How do I fix CVE-2023-23457?

Upgrade to a fixed version.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2023-23457 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-23457 exists.

Other vulnerabilities in Fedoraproject Fedora

• CVE-2024-4577 PHP-CGI OS Command Injection Exploited Critical 9.8
• CVE-2021-39226 Grafana Authentication Bypass Exploited Critical 9.8
• CVE-2019-5544 VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow Exploited Critical 9.8
• CVE-2024-4947 Google Chromium V8 Type Confusion Exploited Critical 9.6
• CVE-2024-4671 Google Chromium Visuals Use-After-Free Exploited Critical 9.6

All Fedoraproject Fedora vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2023-23457, GHSA-qcvq-w335-8gh3, UBUNTU-CVE-2023-23457, openSUSE-SU-2023:0031-1, openSUSE-SU-2024:12613-1.