CVE-2026-90682
Description
A flaw was found in Matthias-Wandel jhead. This vulnerability, a heap-based buffer overflow, exists within the WebP EXIF Handler component, specifically in the ProcessGpsInfo function. A local attacker could exploit this by manipulating the TAG_GPS_LAT or TAG_GPS_LONG arguments. Successful exploitation could lead to information disclosure, denial of service, or potentially arbitrary code execution.
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.
Mitigation
To mitigate this issue, users should avoid processing untrusted or maliciously crafted WebP image files containing EXIF GPS data with the `jhead` utility. As `jhead` is a command-line tool, operational controls such as user awareness and careful handling of input files are the primary means to reduce exposure. If `jhead` is used in automated scripts, ensure that input files originate from trusted sources or are validated before processing.
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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