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🛡️ CVE-2023-7090 on Ubuntu — sudo

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

A flaw was found in sudo in the handling of ipa_hostname, where ipa_hostname from /etc/sssd/sssd.conf was not propagated in sudo. Therefore, it leads to privilege mismanagement vulnerability in applications, where client hosts retain privileges even after retracting them.

Distribution advisory

This page covers CVE-2023-7090 as tracked by Ubuntu, for the package sudo. The fix is available in version 1.9.9-1ubuntu2.4; earlier versions remain affected.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs administrative privileges on the target. No user interaction is required. The scope is changed, meaning a successful attack can affect components beyond the vulnerable one. Rated impact: confidentiality low, integrity low, availability low.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:L

  • Attack vector: Network — reachable from anywhere that can route to the service.
  • Attack complexity: Low — the attack works reliably, with no preparation.
  • Privileges required: High — administrative rights are needed first.
  • User interaction: None — nobody has to be tricked into anything.
  • Scope: Changed — a successful attack reaches components beyond the vulnerable one.
  • Confidentiality impact: Low — limited, and the attacker does not choose what is affected.
  • Integrity impact: Low — limited, and the attacker does not choose what is affected.
  • Availability impact: Low — limited, and the attacker does not choose what is affected.

Weakness class

UBUNTU-CVE-2023-7090 is classified as CWE-269: Improper Privilege Management. Privileges are assigned, dropped or restored incorrectly, leaving an actor with more access than intended.

Affected software

UBUNTU-CVE-2023-7090 is recorded against 1 package.

  • sudo (fixed in 1.9.9-1ubuntu2.4)

Timeline and source

Published on 23 December 2023 and last revised on 16 July 2025. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

ubuntu.com (Report)
www.sudo.ws (Report)
www.sudo.ws (Report)
www.sudo.ws (Report)
www.sudo.ws (Report)
www.cve.org (Report)

Other advisories for this package

sudo has other advisories on record. If you are patching this one, these are worth checking on the same host:

Same weakness in other software

These advisories are the same class of weakness (CWE-269: Improper Privilege Management) in other software:

CVE-2023-7090 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:L
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2023-12-23
Updated 2026-08-20
Modified 2025-07-16
Fix URL N/A

Affected Packages

Software From version Fixed in
sudo — 1.9.9-1ubuntu2.4

Similar Threats

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