CWD Restore Permission Bypass in snap-confine

CVE-2019-11503 · MEDIUM Severity

AV:N/AC:L/AU:N/C:N/I:P/A:N

snap-confine as included in snapd before 2.39 did not guard against symlink races when performing the chdir() to the current working directory of the calling user, aka a "cwd restore permission bypass."

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