OpenBSD 3.5/3.6 Telnet Client env_opt_add memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in OpenBSD 3.5/3.6. Impacted is the function env_opt_add of the component Telnet Client. The manipulation results in memory corruption. This vulnerability is cataloged as CVE-2005-0469. The attack may be launched remotely. There is no exploit available. It is best to disable the affected component.

Detailsinfo

A vulnerability classified as critical has been found in OpenBSD 3.5/3.6 (Operating System). Affected is the function env_opt_add of the component Telnet Client. 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 the slc_add_reply function in various BSD-based Telnet clients, when handling LINEMODE suboptions, allows remote attackers to execute arbitrary code via a reply with a large number of Set Local Character (SLC) commands.

The bug was discovered 03/28/2005. The weakness was shared 03/28/2005 by Gaël Delalleau with iDEFENSE (Website). The advisory is available at idefense.com. This vulnerability is traded as CVE-2005-0469 since 02/18/2005. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 19270 (Debian DSA-765-1 : heimdal - buffer overflow), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 38522 (Multiple Vendor Telnet Client Information Disclosure Vulnerability).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at ftp.openbsd.org. A possible mitigation has been published 5 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (19270), SecurityFocus (BID 12918†), OSVDB (15094†), Secunia (SA14778†) and Vulnerability Center (SBV-7495†). The entries VDB-1312, VDB-1310, VDB-1308 and VDB-1313 are related to this item. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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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

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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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Nessus ID: 19270
Nessus Name: Debian DSA-765-1 : heimdal - buffer overflow
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 54444
OpenVAS Name: Debian Security Advisory DSA 765-1 (heimdal)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Disable
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: ftp.openbsd.org

Timelineinfo

02/18/2005 🔍
03/28/2005 +38 days 🔍
03/28/2005 +0 days 🔍
03/28/2005 +0 days 🔍
04/04/2005 +7 days 🔍
05/02/2005 +28 days 🔍
07/22/2005 +81 days 🔍
07/22/2005 +0 days 🔍
12/17/2024 +7088 days 🔍

Sourcesinfo

Advisory: idefense.com⛔
Researcher: Gaël Delalleau
Organization: iDEFENSE
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2005-0469 (🔍)
GCVE (CVE): GCVE-0-2005-0469
GCVE (VulDB): GCVE-100-1314

OVAL: 🔍

CERT: 🔍
SecurityFocus: 12918 - Multiple Vendor Telnet Client LINEMODE Sub-Options Remote Buffer Overflow Vulnerability
Secunia: 14778 - OpenBSD update for telnet, Moderately Critical
OSVDB: 15094 - Multiple Telnet Client slc_add_reply function buffer overflow
Vulnerability Center: 7495

See also: 🔍

Entryinfo

Created: 04/04/2005 10:29
Updated: 12/17/2024 05:51
Changes: 04/04/2005 10:29 (86), 07/02/2019 06:41 (4), 06/29/2024 00:58 (17), 12/17/2024 05:51 (7)
Complete: 🔍
Cache ID: 216::103

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

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