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Search Results (6 CVEs found)

CVE Vendors Products Updated CVSS v3.1
CVE-2026-61897 1 Canonical 1 Accountsservice 2026-08-20 7.8 High
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.
CVE-2026-61898 1 Canonical 1 Accountsservice 2026-08-20 7.8 High
The Ubuntu-specific language helper scripts (save-to-pam-env, update-langlist) shipped with accountsservice before 23.13.9-8ubuntu7 treat the user-controlled LANGUAGE entry in ~/.pam_environment as trusted input. The value is interpolated unescaped into a GNU sed replacement expression, allowing an attacker to inject a sed 'e' flag and arbitrary shell commands that execute with the privileges of the AccountsService helper process (real UID 0) via the SetLanguage D-Bus method.
CVE-2022-1804 1 Canonical 2 Accountsservice, Ubuntu Linux 2025-08-26 5.5 Medium
accountsservice no longer drops permissions when writting .pam_environment
CVE-2011-4406 1 Canonical 2 Accountsservice, Ubuntu Linux 2025-04-12 N/A
The Ubuntu AccountsService package before 0.6.14-1git1ubuntu1.1 does not properly drop privileges when changing language settings, which allows local users to modify arbitrary files via unspecified vectors.
CVE-2023-3297 2 Canonical, Linux 3 Accountsservice, Ubuntu Linux, Linux Kernel 2024-11-21 8.1 High
In Ubuntu's accountsservice an unprivileged local attacker can trigger a use-after-free vulnerability in accountsservice by sending a D-Bus message to the accounts-daemon process.
CVE-2021-3939 1 Canonical 2 Accountsservice, Ubuntu Linux 2024-11-21 7.8 High
Ubuntu-specific modifications to accountsservice (in patch file debian/patches/0010-set-language.patch) caused the fallback_locale variable, pointing to static storage, to be freed, in the user_change_language_authorized_cb function. This is reachable via the SetLanguage dbus function. This is fixed in versions 0.6.55-0ubuntu12~20.04.5, 0.6.55-0ubuntu13.3, 0.6.55-0ubuntu14.1.