lightdm before 0.9.6 writes in .dmrc and Xauthority files using root permissions while the files are in user controlled folders. A local user can overwrite root-owned files via a symlink, which can allow possible privilege escalation.
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Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2022-04-22. NVD baseline CVSS 7.8; sources differ by 0.0.
lightdm before 0.9.6 writes in .dmrc and Xauthority files using root permissions while the files are in user controlled folders. A local user can overwrite root-owned files via a symlink, which can allow possible privilege escalation.
November 19, 2019
November 21, 2024
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CWE-269