CVE-2025-14369
Description
A flaw was found in dr_flac, an audio decoder within the dr_libs toolset. This integer overflow vulnerability occurs due to the tool trusting the totalPCMFrameCount field from FLAC (Free Lossless Audio Codec) metadata without proper buffer size calculation. An attacker can exploit this by providing a specially crafted FLAC file, which leads to a Denial of Service (DoS) against programs that use the tool.
Statement
This vulnerability is rated Moderate for Red Hat products. The dr_flac audio decoder, used by components like SDL2_sound and SDL3_sound in Fedora, is susceptible to an integer overflow when processing specially crafted FLAC metadata. This flaw could lead to a denial of service in applications that utilize the affected dr_flac component to decode untrusted FLAC files.
Mitigation
To mitigate this issue, avoid processing untrusted FLAC audio files with applications that utilize the `dr_flac` component, such as those relying on `SDL2_sound` or `SDL3_sound`. Restricting the source of FLAC files to trusted origins can reduce the risk of exploitation.
Understanding the Weakness (CWE)
Availability
Technical Impact: DoS: Crash, Exit, or Restart; DoS: Resource Consumption (Memory); DoS: Instability
This weakness can generally lead to undefined behavior and therefore crashes. When the calculated result is used for resource allocation, this weakness can cause too many (or too few) resources to be allocated, possibly enabling crashes if the product requests more resources than can be provided.
Integrity
Technical Impact: Modify Memory
If the value in question is important to data (as opposed to flow), simple data corruption has occurred. Also, if the overflow/wraparound results in other conditions such as buffer overflows, further memory corruption may occur.
Confidentiality,Availability,Access Control
Technical Impact: Execute Unauthorized Code or Commands; Bypass Protection Mechanism
This weakness can sometimes trigger buffer overflows, which can be used to execute arbitrary code. This is usually outside the scope of the product's implicit security policy.
Availability,Other
Technical Impact: Alter Execution Logic; DoS: Crash, Exit, or Restart; DoS: Resource Consumption (CPU)
If the overflow/wraparound occurs in a loop index variable, this could cause the loop to terminate at the wrong time - too early, too late, or not at all (i.e., infinite loops). With too many iterations, some loops could consume too many resources such as memory, file handles, etc., possibly leading to a crash or other DoS.
Access Control
Technical Impact: Bypass Protection Mechanism
If integer values are used in security-critical decisions, such as calculating quotas or allocation limits, integer overflows can be used to cause an incorrect security decision.
Frequently Asked Questions
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