Simon Tatham PuTTY 0.56 sftp.c sftp_pkt_getstring memory corruption

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

A vulnerability was found in Simon Tatham PuTTY 0.56 (Connectivity Software) and classified as critical. Affected by this issue is the function sftp_pkt_getstring of the file sftp.c. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability.

The bug was discovered 02/21/2005. The weakness was presented 02/21/2005 by Gael Delalleau (gets) with iDEFENSE (Website). The advisory is available at chiark.greenend.org.uk. This vulnerability is handled as CVE-2005-0467 since 02/18/2005. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 19057 (FreeBSD : putty -- pscp/psftp heap corruption vulnerabilities (a413ed94-836e-11d9-a9e7-0001020eed82)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks and running in the context l.

Upgrading to version 0.57 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at chiark.greenend.org.uk. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (19402) and Tenable (19057). See 1237 for similar entry.

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CPE 2.3info

CPE 2.2info

CVSSv4info

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CVSSv3info

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

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
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CVSSv2info

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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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Nessus ID: 19057
Nessus Name: FreeBSD : putty -- pscp/psftp heap corruption vulnerabilities (a413ed94-836e-11d9-a9e7-0001020eed82)
Nessus File: 🔍
Nessus Risk: 🔍
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OpenVAS ID: 54860
OpenVAS Name: Gentoo Security Advisory GLSA 200502-28 (Putty)
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OpenVAS Family: 🔍

Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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0-Day Time: 🔍
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Upgrade: PuTTY 0.57
Patch: chiark.greenend.org.uk

Timelineinfo

01/01/2005 🔍
02/18/2005 +48 days 🔍
02/21/2005 +3 days 🔍
02/21/2005 +0 days 🔍
02/21/2005 +0 days 🔍
02/21/2005 +0 days 🔍
02/21/2005 +0 days 🔍
02/21/2005 +0 days 🔍
02/21/2005 +0 days 🔍
02/21/2005 +0 days 🔍
02/28/2005 +6 days 🔍
02/28/2005 +0 days 🔍
07/13/2005 +135 days 🔍
03/10/2021 +5719 days 🔍

Sourcesinfo

Advisory: chiark.greenend.org.uk
Researcher: Gael Delalleau (gets)
Organization: iDEFENSE
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2005-0467 (🔍)
X-Force: 19402 - PuTTY "FXP_READDIR" command buffer overflow, High Risk
SecurityTracker: 1013246
Vulnerability Center: 7165 - Multiple Integer Overflows in PSFTP and PSCP Clients for PuTTY 0.56, Medium
SecurityFocus: 12601 - PuTTY/PSFTP/PSCP Multiple Remote Integer Overflow Vulnerabilities
Secunia: 14333 - PuTTY Two Integer Overflow Vulnerabilities, Moderately Critical
OSVDB: 14003 - PuTTY sftp_pkt_getstring() Function Remote Overflow

See also: 🔍

Entryinfo

Created: 02/28/2005 11:28
Updated: 03/10/2021 16:00
Changes: 02/28/2005 11:28 (98), 07/01/2019 15:37 (4), 03/10/2021 16:00 (2)
Complete: 🔍

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