Is CVE-1999-0273 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-1999-0273 being exploited in the wild.

How severe is CVE-1999-0273?

Medium severity, with a CVSS score of 5, published 1 January 1998.

Which products and versions are affected?

Sun Microsystems Solaris 2.5.1; Sun Microsystems SunOS 5.5.1.

Is there a fix for CVE-1999-0273?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-1999-0273 attacked?

It is attacked over the network, in an operating system.

Am I affected by CVE-1999-0273?

Check whether you run Sunos. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-1999-0273: Sun Solaris Telnet denial of service via control characters

CVE-1999-0273 · Severity: medium · CVSS 5 · Published 1998-01-01

A vulnerability in the Telnet service of Solaris 2.5.1 allows an attacker to crash or disrupt the service. By sending specific control characters (Ctrl-D) over the network, a remote user can cause a denial of service. This impacts the ability of administrators and users to remotely access and manage the affected system.

Technologies: Sunos. Vendors: Sun.

Quick answers

Is CVE-1999-0273 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-1999-0273 being exploited in the wild.
How severe is CVE-1999-0273?: Medium severity, with a CVSS score of 5, published 1 January 1998.
Which products and versions are affected?: Sun Microsystems Solaris 2.5.1; Sun Microsystems SunOS 5.5.1.
Is there a fix for CVE-1999-0273?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-1999-0273 attacked?: It is attacked over the network, in an operating system.
Am I affected by CVE-1999-0273?: Check whether you run Sunos. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The Telnet daemon in Sun Solaris 2.5.1 (SunOS 5.5.1) is susceptible to a denial of service attack. An unauthenticated remote attacker can trigger the vulnerability by sending a sequence of '^D' (EOF) characters during a telnet session. This causes the service to malfunction or terminate, preventing further remote access via the telnet protocol. The issue is rooted in improper handling of control characters within the telnet stream.

Affected products

Sun Microsystems Solaris 2.5.1
Sun Microsystems SunOS 5.5.1

Timeline

1998-01-01: disclosed: Initial publication date in NVD

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0273

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