SSH Client 1.2.26 DNS Hostname memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.0$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in SSH Client 1.2.26. Impacted is an unknown function of the component DNS Hostname Handler. The manipulation results in memory corruption. This vulnerability is known as CVE-1999-1321. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, was found in SSH Client 1.2.26 (SSH Server Software). Affected is an unknown code block of the component DNS Hostname Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Buffer overflow in ssh 1.2.26 client with Kerberos V enabled could allow remote attackers to cause a denial of service or execute arbitrary commands via a long DNS hostname that is not properly handled during TGT ticket passing.

The bug was discovered 11/04/1998. The weakness was published 11/05/1998 as not defined posting (Bugtraq). The advisory is available at lists.netspace.org. This vulnerability is traded as CVE-1999-1321. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (8328), OSVDB (4883†) and Vulnerability Center (SBV-5962†). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/04/1998 🔍
11/05/1998 +1 days 🔍
11/05/1998 +0 days 🔍
11/05/1998 +0 days 🔍
04/03/2004 +1976 days 🔍
11/23/2004 +233 days 🔍
06/19/2014 +3495 days 🔍
05/26/2019 +1802 days 🔍

Sourcesinfo

Advisory: lists.netspace.org
Status: Not defined

CVE: CVE-1999-1321 (🔍)
GCVE (CVE): GCVE-0-1999-1321
GCVE (VulDB): GCVE-100-14250
X-Force: 8328
OSVDB: 4883 - SSH Client Kerberos 5 TGT Overflow
Vulnerability Center: 5962 - Buffer Overflow in SSH 1.2.26 with Kerberos 5 via Long DNS Names, Critical

Entryinfo

Created: 06/19/2014 18:00
Updated: 05/26/2019 09:43
Changes: 06/19/2014 18:00 (58), 05/26/2019 09:43 (2)
Complete: 🔍
Cache ID: 216:3A0:103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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