Cyrus IMAP up to 2.3.18/2.4.17/2.5.3 index.c index_urlfetch 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 identified as critical has been detected in Cyrus IMAP up to 2.3.18/2.4.17/2.5.3. Impacted is the function index_urlfetch of the file index.c. The manipulation leads to memory corruption. This vulnerability is listed as CVE-2015-8076. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Cyrus IMAP up to 2.3.18/2.4.17/2.5.3 and classified as critical. This issue affects the function index_urlfetch of the file index.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 summary by CVE is:

The index_urlfetch function in index.c in Cyrus IMAP 2.3.x before 2.3.19, 2.4.x before 2.4.18, 2.5.x before 2.5.4 allows remote attackers to obtain sensitive information or possibly have unspecified other impact via vectors related to the urlfetch range, which triggers an out-of-bounds heap read.

The weakness was presented 12/03/2015 (Website). It is possible to read the advisory at docs.cyrus.foundation. The identification of this vulnerability is CVE-2015-8076 since 11/04/2015. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 89420 (Fedora 21 : cyrus-imapd-2.4.18-1.fc21 (2015-d292a98f01)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 168995 (SUSE Enterprise Linux Security Update for cyrus-imapd (SUSE-SU-2016:1459-1)).

Upgrading to version 2.3.19, 2.4.18 or 2.5.4 eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (89420) and Vulnerability Center (SBV-54770†). See VDB-79404 and VDB-79405 for similar entries. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Name

Version

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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Nessus ID: 89420
Nessus Name: Fedora 21 : cyrus-imapd-2.4.18-1.fc21 (2015-d292a98f01)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 867773
OpenVAS Name: Fedora Update for cyrus-imapd FEDORA-2015-8
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: IMAP 2.3.19/2.4.18/2.5.4
Patch: cyrus.foundation

Timelineinfo

11/04/2015 🔍
11/18/2015 +14 days 🔍
11/20/2015 +2 days 🔍
12/03/2015 +13 days 🔍
12/03/2015 +0 days 🔍
12/03/2015 +0 days 🔍
12/04/2015 +1 days 🔍
03/04/2016 +91 days 🔍
06/28/2022 +2307 days 🔍

Sourcesinfo

Advisory: FEDORA-2015-d292a98f01
Status: Not defined
Confirmation: 🔍

CVE: CVE-2015-8076 (🔍)
GCVE (CVE): GCVE-0-2015-8076
GCVE (VulDB): GCVE-100-79403
Vulnerability Center: 54770 - Cyrus IMAP Server before 2.4.18 Remote Information Disclosure due to Out Of Bounds, Medium

See also: 🔍

Entryinfo

Created: 12/04/2015 09:25
Updated: 06/28/2022 13:27
Changes: 12/04/2015 09:25 (55), 05/11/2018 09:30 (17), 06/28/2022 13:21 (3), 06/28/2022 13:27 (1)
Complete: 🔍
Cache ID: 216::103

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