CVE-2023-27533

Publication date 20 March 2023

Last updated 24 July 2024

Ubuntu priority

Low

Why this priority?

Cvss 3 Severity Score

8.8 · High

Score breakdown

A vulnerability in input validation exists in curl <8.0 during communication using the TELNET protocol may allow an attacker to pass on maliciously crafted user name and “telnet options” during server negotiation. The lack of proper input scrubbing allows an attacker to send content or perform option negotiation without the application’s intent. This vulnerability could be exploited if an application allows user input, thereby enabling attackers to execute arbitrary code on the system.

Status

Package Ubuntu Release Status
curl 23.04 lunar
Fixed 7.88.1-6ubuntu2
22.10 kinetic
Fixed 7.85.0-1ubuntu0.5
22.04 LTS jammy
Fixed 7.81.0-1ubuntu1.10
20.04 LTS focal
Fixed 7.68.0-1ubuntu2.18
18.04 LTS bionic
Fixed 7.58.0-2ubuntu3.24
16.04 LTS xenial
14.04 LTS trusty

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
curl

Severity score breakdown

Parameter Value
Base score 8.8 · High
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

Other references