CVE-2023-27533
- State
- Published
- Severity
- 9.8 Critical
- Published
- Mar 30, 2023
- Updated
- Oct 14, 2026
- Reserved
- Mar 2, 2023
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 9.8 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | CISA-ADP |
Weaknesses
- CWE-75 Failure to Sanitize Special Elements into a Different Plane (Special Element Injection) (CWE-75)
Affected Products
| Product | Versions |
|---|---|
https://github.com/curl/curln/a |
|
References
- https://hackerone.com/reports/1891474
- FEDORA-2023-7e7414e64dvendor-advisory
- https://security.netapp.com/advisory/ntap-20230420-0011/
- [debian-lts-announce] 20230421 [SECURITY] [DLA 3398-1] curl security updatemailing-list
- GLSA-202310-12vendor-advisory
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
- https://cert-portal.siemens.com/productcert/html/ssa-943925.html
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