fetchmail 6.3.11/6.3.12/6.3.13 Verbose Mode sdump.c sdump memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.9$0-$5k0.00

Summaryinfo

A vulnerability was found in fetchmail 6.3.11/6.3.12/6.3.13. It has been declared as critical. Affected by this issue is the function sdump of the file sdump.c of the component Verbose Mode. Executing a manipulation can lead to memory corruption. This vulnerability appears as CVE-2010-0562. There is no available exploit.

Detailsinfo

A vulnerability classified as critical was found in fetchmail 6.3.11/6.3.12/6.3.13. This vulnerability affects the function sdump of the file sdump.c of the component Verbose Mode. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

The sdump function in sdump.c in fetchmail 6.3.11, 6.3.12, and 6.3.13, when running in verbose mode on platforms for which char is signed, allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via an SSL X.509 certificate containing non-printable characters with the high bit set, which triggers a heap-based buffer overflow during escaping.

The weakness was presented 02/04/2010 (Website). The advisory is available at vupen.com. This vulnerability was named CVE-2010-0562 since 02/08/2010. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit.

It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 44600 (FreeBSD : fetchmail -- heap overflow on verbose X.509 display (2a6a966f-1774-11df-b5c1-0026189baca3)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 165243 (SUSE Security Update for Multiple Packages (SUSE-SR:2010:005)).

A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (56099), Tenable (44600), SecurityFocus (BID 38088†), OSVDB (62114†) and Secunia (SA38391†). See VDB-51917, VDB-51153, VDB-51041 and VDB-50972 for similar entries. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.9

VulDB Base Score: 7.3
VulDB Temp Score: 6.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 44600
Nessus Name: FreeBSD : fetchmail -- heap overflow on verbose X.509 display (2a6a966f-1774-11df-b5c1-0026189baca3)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 66850
OpenVAS Name: FreeBSD Ports: fetchmail
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

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0-Day Time: 🔍
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Timelineinfo

02/04/2010 🔍
02/04/2010 +0 days 🔍
02/04/2010 +0 days 🔍
02/04/2010 +0 days 🔍
02/04/2010 +0 days 🔍
02/04/2010 +0 days 🔍
02/04/2010 +0 days 🔍
02/08/2010 +3 days 🔍
02/08/2010 +0 days 🔍
02/15/2010 +7 days 🔍
02/22/2010 +7 days 🔍
03/18/2015 +1850 days 🔍
04/30/2026 +4061 days 🔍

Sourcesinfo

Advisory: vupen.com⛔
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2010-0562 (🔍)
GCVE (CVE): GCVE-0-2010-0562
GCVE (VulDB): GCVE-100-51778
X-Force: 56099
SecurityFocus: 38088 - Fetchmail SSL Certificate Printing Remote Heap Buffer Overflow Vulnerability
Secunia: 38391 - fetchmail SSL Certificate Printing Buffer Overflow Vulnerability, Less Critical
OSVDB: 62114 - fetchmail X.509 Certificate Printing sdump.c sdump() Function Overflow
SecurityTracker: 1023543 - Fetchmail Heap Overflow When Displaying SSL Certificates in Verbose Mode May Let Remote Users Execute Arbitrary Code
Vulnerability Center: 24883 - Eric Raymond Fetchmail < 6.3.14 Sdump Function Remote Arbitrary Code Execution Vulnerability, Medium
Vupen: ADV-2010-0296

See also: 🔍

Entryinfo

Created: 03/18/2015 15:15
Updated: 04/30/2026 14:15
Changes: 03/18/2015 15:15 (69), 02/21/2017 08:16 (17), 09/01/2021 07:23 (3), 04/30/2026 14:15 (15)
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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