Ubuntu Security Notice 5421-1 - It was discovered that LibTIFF incorrectly handled certain images. An attacker could possibly use this issue to cause a crash, resulting in a denial of service. This issue only affects Ubuntu 14.04 ESM, Ubuntu 16.04 ESM, Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. Chintan Shah discovered that LibTIFF incorrectly handled memory when handling certain images. An attacker could possibly use this issue to cause a crash, resulting in a denial of service, or possibly execute arbitrary code.
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