Where
-Infinity
0
EOL
Jan 17, 2026
Support Ends
Jan 17, 2026

End of life: 1/17/2026, End of support: 1/17/2026, Latest version: 25.04

First published (updated )
EOL
Jul 10, 2025
Support Ends
Jul 10, 2025

End of life: 7/10/2025, End of support: 7/10/2025, Latest version: 24.10

First published (updated )
EOL
Jul 10, 2025
Support Ends
Jul 10, 2025

End of life: 7/10/2025, End of support: 7/10/2025, Latest version: 24.10

First published (updated )
EOL
Jul 12, 2024
Support Ends
Jul 12, 2024

End of life: 7/12/2024, End of support: 7/12/2024, Latest version: 23.10

First published (updated )
EOL
Jul 12, 2024
Support Ends
Jul 12, 2024

End of life: 7/12/2024, End of support: 7/12/2024, Latest version: 23.10

First published (updated )

This vulnerability allows local attackers to escalate privileges on affected installations of Canonical Ubuntu. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

First published (updated )

This vulnerability allows local attackers to escalate privileges on affected installations of Canonical Ubuntu. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

First published (updated )
Advisory
ZDI-23-1009
Severity
7.8
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

This vulnerability allows local attackers to escalate privileges on affected installations of Canonical Ubuntu. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the tcindex module. The issue results from the lack of validating the existence of an object prior to performing further free operations on the object. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of the kernel.

1 / 2
Source: ZDI
First published (updated )
Advisory
ZDI-23-898
Severity
7.8
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

This vulnerability allows local attackers to escalate privileges on affected installations of Canonical Ubuntu. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the tcindex module. The issue results from the lack of validating the existence of an object prior to performing further free operations on the object. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of the kernel.

1 / 2
Source: ZDI
First published (updated )
EOL
Jan 20, 2024
Support Ends
Jan 20, 2024

End of life: 1/20/2024, End of support: 1/20/2024, Latest version: 23.04

First published (updated )
EOL
Jan 20, 2024
Support Ends
Jan 20, 2024

End of life: 1/20/2024, End of support: 1/20/2024, Latest version: 23.04

First published (updated )
EOL
Jul 20, 2023
Support Ends
Jul 20, 2023

End of life: 7/20/2023, End of support: 7/20/2023, Latest version: 22.10

First published (updated )
EOL
Jul 20, 2023
Support Ends
Jul 20, 2023

End of life: 7/20/2023, End of support: 7/20/2023, Latest version: 22.10

First published (updated )
EOL
Jul 14, 2022
Support Ends
Jul 14, 2022

End of life: 7/14/2022, End of support: 7/14/2022, Latest version: 21.10

First published (updated )
EOL
Jul 14, 2022
Support Ends
Jul 14, 2022

End of life: 7/14/2022, End of support: 7/14/2022, Latest version: 21.10

First published (updated )
EOL
Jan 20, 2022
Support Ends
Jan 20, 2022

End of life: 1/20/2022, End of support: 1/20/2022, Latest version: 21.04

First published (updated )
EOL
Jan 20, 2022
Support Ends
Jan 20, 2022

End of life: 1/20/2022, End of support: 1/20/2022, Latest version: 21.04

First published (updated )
EOL
Jul 22, 2021
Support Ends
Jul 22, 2021

End of life: 7/22/2021, End of support: 7/22/2021, Latest version: 20.10

First published (updated )
EOL
Jul 22, 2021
Support Ends
Jul 22, 2021

End of life: 7/22/2021, End of support: 7/22/2021, Latest version: 20.10

First published (updated )
Severity
7
Race Condition
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Last updated 25 August 2025

1 / 3
Source: Ubuntu
First published (updated )
EOL
May 31, 2025
Support Ends
Oct 1, 2022

End of life: 5/31/2025, End of support: 10/1/2022, Latest version: 20.04.6

First published (updated )
EOL
May 31, 2025
Support Ends
Oct 1, 2022

End of life: 5/31/2025, End of support: 10/1/2022, Latest version: 20.04.6

First published (updated )
EOL
Jul 6, 2020
Support Ends
Jul 6, 2020

End of life: 7/6/2020, End of support: 7/6/2020, Latest version: 19.10

First published (updated )
EOL
Jul 6, 2020
Support Ends
Jul 6, 2020

End of life: 7/6/2020, End of support: 7/6/2020, Latest version: 19.10

First published (updated )
EOL
Jan 23, 2020
Support Ends
Jan 23, 2020

End of life: 1/23/2020, End of support: 1/23/2020, Latest version: 19.04

First published (updated )
EOL
Jan 23, 2020
Support Ends
Jan 23, 2020

End of life: 1/23/2020, End of support: 1/23/2020, Latest version: 19.04

First published (updated )
EOL
Jul 18, 2019
Support Ends
Jul 18, 2019

End of life: 7/18/2019, End of support: 7/18/2019, Latest version: 18.10

First published (updated )
EOL
Jul 18, 2019
Support Ends
Jul 18, 2019

End of life: 7/18/2019, End of support: 7/18/2019, Latest version: 18.10

First published (updated )
EOL
May 31, 2023
Support Ends
May 31, 2023

End of life: 5/31/2023, End of support: 5/31/2023, Latest version: 18.04.6

First published (updated )

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