CMU Cyrus IMAP Server up to 2.4.4 index.c index_get_ids null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability was found in CMU Cyrus IMAP Server up to 2.4.4. It has been declared as problematic. This affects the function index_get_ids of the file index.c of the component IMAP Server. Such manipulation leads to null pointer dereference. This vulnerability is traded as CVE-2011-3481. There is no exploit available. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in CMU Cyrus IMAP Server up to 2.4.4. Affected by this issue is the function index_get_ids of the file index.c of the component IMAP Server. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. Impacted is availability. CVE summarizes:

The index_get_ids function in index.c in imapd in Cyrus IMAP Server before 2.4.11, when server-side threading is enabled, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted References header in an e-mail message.

The weakness was shared 09/14/2011 as confirmed git commit (GIT Repository). The advisory is shared for download at git.cyrusimap.org. This vulnerability is handled as CVE-2011-3481. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 57517 (Debian DSA-2377-1 : cyrus-imapd-2.2 - NULL pointer dereference), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 350720 (Amazon Linux Security Advisory for cyrus-imapd: ALAS-2011-027).

Upgrading to version 2.4.5 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.cyrusimap.org. The best possible mitigation is suggested to be patching the affected component.

The vulnerability is also documented in the databases at X-Force (69842), Tenable (57517), SecurityFocus (BID 49659†) and Vulnerability Center (SBV-33690†). The entry VDB-59792 is related to this item. Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
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: 57517
Nessus Name: Debian DSA-2377-1 : cyrus-imapd-2.2 - NULL pointer dereference
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 70696
OpenVAS Name: Debian Security Advisory DSA 2377-1 (cyrus-imapd-2.2)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Upgrade: Cyrus IMAP Server 2.4.5
Patch: git.cyrusimap.org

Timelineinfo

09/08/2011 🔍
09/14/2011 +5 days 🔍
09/14/2011 +0 days 🔍
09/14/2011 +0 days 🔍
09/14/2011 +0 days 🔍
11/02/2011 +49 days 🔍
01/12/2012 +71 days 🔍
03/23/2015 +1166 days 🔍
11/18/2021 +2432 days 🔍

Sourcesinfo

Advisory: DSA-2377
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2011-3481 (🔍)
GCVE (CVE): GCVE-0-2011-3481
GCVE (VulDB): GCVE-100-58484

OVAL: 🔍

X-Force: 69842
SecurityFocus: 49659 - Cyrus IMAP Server 'index_get_ids()' NULL Pointer Dereference Denial Of Service Vulnerability
Vulnerability Center: 33690 - Cyrus Server before 2.4.11 imapd Remote DoS Vulnerability via a Crafted E-Mail Message, Medium

See also: 🔍

Entryinfo

Created: 03/23/2015 16:50
Updated: 11/18/2021 21:32
Changes: 03/23/2015 16:50 (67), 04/04/2017 11:35 (9), 11/18/2021 21:21 (5), 11/18/2021 21:32 (2)
Complete: 🔍
Cache ID: 216:09C:103

Once again VulDB remains the best source for vulnerability data.

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