An Ubuntu-specific patch to AccountsService before 23.13.9-8ubuntu7 only partially drops privileges before launching language helper scripts. It changes the effective UID/GID to the target user but leaves the real UID as 0 (root). A shell spawned by a helper script inherits ruid=0 and may reset its effective UID to root, enabling local privilege escalation.
Metrics
Affected Vendors & Products
References
History
Wed, 26 Aug 2026 20:30:00 +0000
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ssvc
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Mon, 24 Aug 2026 12:15:00 +0000
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threat_severity
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threat_severity
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Thu, 20 Aug 2026 16:45:00 +0000
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Canonical
Canonical accountsservice |
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| Vendors & Products |
Canonical
Canonical accountsservice |
Thu, 20 Aug 2026 14:45:00 +0000
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| Description | An Ubuntu-specific patch to AccountsService before 23.13.9-8ubuntu7 only partially drops privileges before launching language helper scripts. It changes the effective UID/GID to the target user but leaves the real UID as 0 (root). A shell spawned by a helper script inherits ruid=0 and may reset its effective UID to root, enabling local privilege escalation. | |
| Title | accountsservice: incomplete privilege drop when running Ubuntu-specific language helper scripts | |
| Weaknesses | CWE-273 | |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: canonical
Published: 2026-08-20T14:32:53.827Z
Updated: 2026-08-26T19:50:49.398Z
Reserved: 2026-07-11T18:43:51.251Z
Link: CVE-2026-61897
Updated: 2026-08-26T19:50:43.428Z
Status : Awaiting Analysis
Published: 2026-08-20T15:17:38.740
Modified: 2026-08-28T15:24:38.600
Link: CVE-2026-61897