CVE-2026-29068
Description
A flaw was found in PJSIP. A remote attacker could exploit a stack buffer overflow vulnerability in the pjmedia-codec component. This occurs when the component processes a Real-time Transport Protocol (RTP) payload that contains more frames than it is designed to handle. Successful exploitation of this vulnerability could lead to a Denial of Service (DoS), making the affected system unavailable.
Statement
IMPORTANT: A stack buffer overflow flaw exists in the PJSIP library's Opus codec parser. This vulnerability occurs when processing specially crafted RTP payloads containing more frames than the allocated buffer can hold, potentially leading to denial of service or arbitrary code execution in applications utilizing PJSIP for Opus codec handling.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Understanding the Weakness (CWE)
Integrity,Confidentiality,Availability
Technical Impact: Modify Memory; Execute Unauthorized Code or Commands
Buffer overflows often can be used to execute arbitrary code, which is usually outside the scope of the product's implicit security policy. This can often be used to subvert any other security service.
Availability
Technical Impact: Modify Memory; DoS: Crash, Exit, or Restart; DoS: Resource Consumption (CPU)
Buffer overflows generally lead to crashes. Other attacks leading to lack of availability are possible, including putting the product into an infinite loop.
Frequently Asked Questions
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