CVE-2025-34457
Description
A flaw was found in Dire Wolf. A remote unauthenticated attacker could exploit a stack-based buffer overflow vulnerability in the kiss_rec_byte() function when processing specially crafted KISS (KISS is a protocol for transmitting AX.25 frames over a serial link) frames that exceed the maximum allowed length. This leads to an out-of-bounds write and read, causing stack memory corruption or application crashes, ultimately resulting in a Denial of Service (DoS) condition.
Statement
This vulnerability is rated IMPORTANT as Dire Wolf, available in Fedora, is susceptible to a denial-of-service condition. A remote unauthenticated attacker can exploit a stack-based buffer overflow by sending specially crafted KISS frames, leading to application crashes.
Understanding the Weakness (CWE)
Availability
Technical Impact: Modify Memory; DoS: Crash, Exit, or Restart; DoS: Resource Consumption (CPU); DoS: Resource Consumption (Memory)
Buffer overflows generally lead to crashes. Other attacks leading to lack of availability are possible, including putting the program into an infinite loop.
Integrity,Confidentiality,Availability,Access Control
Technical Impact: Modify Memory; Execute Unauthorized Code or Commands; Bypass Protection Mechanism
Buffer overflows often can be used to execute arbitrary code, which is usually outside the scope of a program's implicit security policy.
Integrity,Confidentiality,Availability,Access Control,Other
Technical Impact: Modify Memory; Execute Unauthorized Code or Commands; Bypass Protection Mechanism; Other
When the consequence is arbitrary code execution, this can often be used to subvert any other security service.
Frequently Asked Questions
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