Affected: exiv2

Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. An out-of-bounds read was found in Exiv2 versions v0.27.3 and earlier. The out-of-bounds read is triggered when Exiv2 is used to write metadata into a crafted image file. An attacker could potentially exploit the vulnerability to cause a denial of service by crashing Exiv2, if they can trick the victim into running Exiv2 on a crafted image file. Note that this bug is only triggered when writing the metadata, which is a less frequently used Exiv2 operation than reading the metadata. For example, to trigger the bug in the Exiv2 command-line application, you need to add an extra command-line argument such as `insert`. The bug is fixed in version v0.27.4.

Affected: Ubuntu:Pro:16.04:LTS: exiv2, Ubuntu:18.04:LTS: exiv2, Ubuntu:20.04:LTS: exiv2

It was discovered that Exiv2 incorrectly handled certain files. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 20.04 LTS, Ubuntu 20.10 and Ubuntu 21.04. (CVE-2021-29463)

It was discovered that Exiv2 incorrectly handled certain files. An attacker could possibly use this issue to execute arbitrary code. This issue only affected Ubuntu 20.04 LTS, Ubuntu 20.10 and Ubuntu 21.04. (CVE-2021-29464)

It was discovered that Exiv2 incorrectly handled certain files. An attacker could possibly use this issue to cause a denial of service. (CVE-2021-29473, CVE-2021-32617)

It was discovered that Exiv2 incorrectly handled certain files. An attacker could possibly use this issue to expose sensitive information. This issue only affected Ubuntu 20.04 LTS, Ubuntu 20.10 and Ubuntu 21.04. (CVE-2021-29623)