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4 vulnerabilities found for polkit by freedesktop

CVE-2026-4897 (GCVE-0-2026-4897)

Vulnerability from nvd – Published: 2026-03-26 14:56 – Updated: 2026-03-30 15:53
VLAI?
Title
Polkit: polkit: denial of service via unbounded input processing through standard input
Summary
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, resulting in a Denial of Service (DoS) for the system.
CWE
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
Impacted products
Vendor Product Version
Red Hat Red Hat Enterprise Linux 10     cpe:/o:redhat:enterprise_linux:10
Create a notification for this product.
Date Public ?
2026-03-26 12:34
Show details on NVD website

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CVE-2016-2568 (GCVE-0-2016-2568)

Vulnerability from nvd – Published: 2017-02-13 18:00 – Updated: 2024-08-05 23:32
VLAI?
Summary
pkexec, when used with --user nonpriv, allows local users to escape to the parent session via a crafted TIOCSTI ioctl call, which pushes characters to the terminal's input buffer.
Severity ?
No CVSS data available.
CWE
  • n/a
Assigner
Date Public ?
2016-02-25 00:00
Show details on NVD website

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CVE-2026-4897 (GCVE-0-2026-4897)

Vulnerability from cvelistv5 – Published: 2026-03-26 14:56 – Updated: 2026-03-30 15:53
VLAI?
Title
Polkit: polkit: denial of service via unbounded input processing through standard input
Summary
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, resulting in a Denial of Service (DoS) for the system.
CWE
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
Impacted products
Vendor Product Version
Red Hat Red Hat Enterprise Linux 10     cpe:/o:redhat:enterprise_linux:10
Create a notification for this product.
Date Public ?
2026-03-26 12:34
Show details on NVD website

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CVE-2016-2568 (GCVE-0-2016-2568)

Vulnerability from cvelistv5 – Published: 2017-02-13 18:00 – Updated: 2024-08-05 23:32
VLAI?
Summary
pkexec, when used with --user nonpriv, allows local users to escape to the parent session via a crafted TIOCSTI ioctl call, which pushes characters to the terminal's input buffer.
Severity ?
No CVSS data available.
CWE
  • n/a
Assigner
Date Public ?
2016-02-25 00:00
Show details on NVD website

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