CVE-2026-57160
Description
A flaw was found in PJSIP, a multimedia communication library, where a buffer overflow can occur in the pjsip_generic_array_hdr_print() function. This vulnerability arises during the serialization of Session Initiation Protocol (SIP) message headers, allowing a remote attacker to write one byte past the end of a buffer in applications that re-serialize incoming SIP requests, such as proxies or Session Border Controllers (SBCs). While direct code execution or information disclosure has not been demonstrated, this out-of-bounds write could lead to unpredictable behavior or a denial of service.
Statement
Red Hat Product Security has determined that this vulnerability does not affect any currently supported Red Hat product. This assessment may evolve based on further analysis and discovery. For more information about this vulnerability and the products it affects, please see the linked references.
Understanding the Weakness (CWE)
Integrity
Technical Impact: Modify Memory; Execute Unauthorized Code or Commands
Write operations could cause memory corruption. In some cases, an adversary can modify control data such as return addresses in order to execute unexpected code.
Availability
Technical Impact: DoS: Crash, Exit, or Restart
Attempting to access out-of-range, invalid, or unauthorized memory could cause the product to crash.
Other
Technical Impact: Unexpected State
Subsequent write operations can produce undefined or unexpected results.
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