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Ubuntu Security NoticesUSN-8779-1

USN-8779-1: Bubblewrap vulnerabilities

It was discovered that Bubblewrap incorrectly handled certain temporary directories. A local attacker could possibly use this issue to cause a denial of service or execute arbitrary code. This issue only affected Ubuntu 18.04 LTS. (CVE-2019-12439) It was discovered that Bubblewrap incorrectly handled certain symlinks during sandbox setup. A local attacker could possibly use this issue to create files outside of the sandbox. (CVE-2026-87766)

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Scope

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Timeline

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  1. Published by Ubuntu

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  2. Added to SecurityAlert

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  3. Confirmed at the source

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Vulnerabilities

CVEs named in this advisory

CVE-2019-12439View CVSS, KEV, EPSS, and threat contextCVE-2026-87766View CVSS, KEV, EPSS, and threat context
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