Cyrus Sieve/libSieve up to 2.1.2 memory corruption

HistoryDiffrelatejsonxmlCTI

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
9.6	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Cyrus Sieve and libSieve up to 2.1.2. The impacted element is an unknown function. The manipulation leads to memory corruption. This vulnerability is referenced as CVE-2002-2253. No exploit is available.

Detailsinfo

A vulnerability was found in Cyrus Sieve and libSieve up to 2.1.2 and classified as very critical. This issue affects an unknown functionality. 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:

Multiple buffer overflows in Cyrus Sieve / libSieve 2.1.2 and earlier allow remote attackers to execute arbitrary code via (1) a long header name, (2) a long IMAP flag, or (3) a script that generates a large number of errors that overflow the resulting error string.

The weakness was published 12/31/2002 by Timo Sirainen (Website). It is possible to read the advisory at archives.neohapsis.com. The identification of this vulnerability is CVE-2002-2253 since 10/14/2007. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/20/2019).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (10780) and SecurityFocus (BID 6300†). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Cyrus

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.6

VulDB Base Score: 10.0
VulDB Temp Score: 9.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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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: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/03/2002 🔍
12/31/2002 +28 days 🔍
12/31/2002 +0 days 🔍
10/14/2007 +1748 days 🔍
08/06/2014 +2488 days 🔍
04/20/2019 +1718 days 🔍

Sourcesinfo

Advisory: archives.neohapsis.com
Researcher: Timo Sirainen
Status: Not defined

CVE: CVE-2002-2253 (🔍)
GCVE (CVE): GCVE-0-2002-2253
GCVE (VulDB): GCVE-100-19895
X-Force: 10780
SecurityFocus: 6300 - libSieve Error Message Buffer Overrun Vulnerability

Entryinfo

Created: 08/06/2014 18:24
Updated: 04/20/2019 11:47
Changes: 08/06/2014 18:24 (47), 04/20/2019 11:47 (5)
Complete: 🔍
Cache ID: 216::103