It was discovered that gThumb did not properly managed memory when processing certain image files. If a user were tricked into opening a specially crafted JPEG file, an attacker could possibly use this issue to cause gThumb to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2019-20326) It was discovered that gThumb did not properly handled certain malformed image files. If a user were tricked into opening a specially crafted JPEG file, an attacker could possibly use this issue to cause gThumb to crash, resulting in a denial of service. (CVE-2020-36427)
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