Cisco Talos’ Vulnerability Research team recently disclosed six new security vulnerabilities across a range of software, including one in a popular PDF reader that could lead to arbitrary code execution. 

Foxit PDF Reader, one of the most popular alternatives to Adobe Acrobat, contains a memory corruption vulnerability that could allow an adversary to execute code on the targeted machine. 

Talos also discovered three vulnerabilities in Veertu’s Anka Build, a suite of software designed to test macOS or iOS applications in CI/CD environments.

For Snort coverage that can detect the exploitation of these vulnerabilities, download the latest rule sets from Snort.org, and our latest Vulnerability Advisories are always posted on Talos Intelligence’s website.

Use-after-free vulnerability in Foxit PDF Reader

Discovered by KPC.

A use-after-free vulnerability in Foxit PDF Reader could lead to memory corruption and eventually arbitrary code execution on the targeted machine.

TALOS-2024-1967 (CVE-2024-28888) can be triggered if an adversary tricks a user into opening a specially crafted PDF that contains malicious JavaScript. Exploitation could also occur if the targeted user visits an attacker-controlled website with the Foxit PDF Reader browser extension enabled.

Multiple vulnerabilities in GNOME project library could lead to code execution

Two vulnerabilities in the G Structured File Library (libgsf) could lead to arbitrary code execution. 

This GNOME project supports an abstraction layer around different structure file formats such as .tar and .zip. 

TALOS-2024-2068 (CVE-2024-36474) is an integer overflow vulnerability that could allow an out-of-bounds index to be used when reading and writing to an array. This could lead to arbitrary code execution if an adversary exploited it appropriately. 

TALOS-2024-2069 (CVE-2024-42415) works similarly, but in this case, it arises when the software processes the sector allocation table.

An adversary could exploit both these vulnerabilities by tricking the targeted user into opening a malicious, specially crafted file. 

Three vulnerabilities in Veertu Anka Build

Discovered by KPC.

Veertu’s Anka Build software contains three vulnerabilities, two of which are directory traversal issues. 

Anka Build is a suite of software designed to test macOS and iOS applications in CI/CD environments. The suite is a centralized dashboard for managing nodes, VM instances, templates, tags and logs. 

This software contains two directory traversal vulnerabilities — TALOS-2024-2059 (CVE-2024-41163) and TALOS-2024-2061 (CVE-2024-41922) — that could lead to the disclosure of arbitrary files. An adversary could exploit these vulnerabilities by sending the target a specially crafted HTTP request. 

Another vulnerability, TALOS-2024-2060 (CVE-2024-39755), is a privilege escalation issue that could allow a low-privileged user to force the software to update, potentially raising their access to that of a root user. 

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