Ubuntu libgphoto2 Important Buffer Abuse Denial of Service Vuln 8586

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Several security issues were fixed in libgphoto2. Software Description: - libgphoto2: gphoto2 digital camera library Details: It was discovered that libgphoto2 did not properly validate buffer boundaries when parsing EOS image format data. An attacker with physical access could possibly use this issue to obtain sensitive information. (CVE-2026-40333) It was discovered that libgphoto2 did not properly null-terminate buffers when parsing Canon folder entries. An attacker with physical access could possibly use this issue to obtain sensitive information. (CVE-2026-40334) It was discovered that libgphoto2 did not properly validate buffer boundaries when parsing device property values. An attacker with physical access could possibly use this issue to obtain sensitive information. (CVE-2026-40335) It was discovered that libgphoto2 had a memory leak when parsing Sony device property descriptors. An attacker with physical access could possibly use this issue to cause a denial of serv... Read the Full Advisory

Several security issues were fixed in libgphoto2.

Software Description:

- libgphoto2: gphoto2 digital camera library

It was discovered that libgphoto2 did not properly validate buffer

boundaries when parsing EOS image format data. An attacker with physical

access could possibly use this issue to obtain sensitive information.

It was discovered that libgphoto2 did not properly null-terminate buffers

when parsing Canon folder entries. An attacker with physical access could

possibly use this issue to obtain sensitive information. (CVE-2026-40334)

It was discovered that libgphoto2 did not properly validate buffer

boundaries when parsing device property values. An attacker with physical

access could possibly use this issue to obtain sensitive information.

It was discovered that libgphoto2 had a memory leak when parsing Sony

device property descriptors. An attacker with physical access could

possibly use this issue to cause a denial of serv...

The problem can be corrected by updating your system to the following package versions: Ubuntu 26.04 LTS libgphoto2-6t64 2.5.33-1ubuntu1.1 Ubuntu 24.04 LTS libgphoto2-6t64 2.5.31-2.1ubuntu1.1 Ubuntu 22.04 LTS libgphoto2-6 2.5.27-1ubuntu0.1 In general, a standard system update will make all the necessary changes.

CVE-2026-40333, CVE-2026-40334, CVE-2026-40335, CVE-2026-40336,

CVE-2026-40338, CVE-2026-40339, CVE-2026-40340, CVE-2026-40341

Ubuntu Security Notice USN-8586-1

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