13 results · Feed
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Low 3.5
Polkit: regression in cve-2026-4897 fix (polkit read_cookie()) - stack buffer underflow
A flaw was found in polkit. When processing input that begins with a null byte, an arithmetic error in the authentication agent helper causes an integer underflow during buffer length calculation, resulting in an out-of-bounds memory read. An attacker capable…
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Medium 5.5
Polkit: polkit: denial of service via unbounded input processing through standard input
A flaw was found in polkit. A local user can exploit this by providing a specially crafted, excessively long input to the `polkit-agent-helper-1` setuid binary via standard input (stdin). This unbounded input can lead to an out-of-memory (OOM) condition, resu…
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Medium 6.7
Polkit: xml policy file with a large number of nested elements may lead to out-of-bounds write
A flaw was found in polkit. When processing an XML policy with 32 or more nested elements in depth, an out-of-bounds write can be triggered. This issue can lead to a crash or other unexpected behavior, and arbitrary code execution is not discarded. To exploit…
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Unscored —
There is a flaw in polkit which can allow an unprivileged user to cause polkit to crash, due to process file descriptor…
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High 7.8
It was found that polkit could be tricked into bypassing the credential checks for D-Bus requests, elevating the privil…
KEV May 12, 2023 -
High 7.8
A local privilege escalation vulnerability was found on polkit's pkexec utility. The pkexec application is a setuid too…
KEV Jun 27, 2022 -
Unscored —
In PolicyKit (aka polkit) 0.115, the "start time" protection mechanism can be bypassed because fork() is not atomic, an…
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Unscored —
A flaw was found in PolicyKit (aka polkit) 0.115 that allows a user with a uid greater than INT_MAX to successfully exe…
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Medium 4.7
A flaw was found in polkit before version 0.116. The implementation of the polkit_backend_interactive_authority_check_a…
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Unscored —
pkexec, when used with --user nonpriv, allows local users to escape to the parent session via a crafted TIOCSTI ioctl c…
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Unscored —
Integer overflow in the authentication_agent_new_cookie function in PolicyKit (aka polkit) before 0.113 allows local us…
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Unscored —
The polkit_backend_action_pool_init function in polkitbackend/polkitbackendactionpool.c in PolicyKit (aka polkit) befor…
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Unscored —
The authentication_agent_new function in polkitbackend/polkitbackendinteractiveauthority.c in PolicyKit (aka polkit) be…