Tuxfamily Chrony up to 1.28 pktlength.c PKL_ReplyLength numeric error

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

Summaryinfo

A vulnerability has been found in Tuxfamily Chrony up to 1.28 and classified as critical. Affected by this vulnerability is the function PKL_ReplyLength of the file pktlength.c. Performing a manipulation results in numeric error. This vulnerability is cataloged as CVE-2012-4502. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical has been found in Tuxfamily Chrony up to 1.28. This affects the function PKL_ReplyLength of the file pktlength.c. The manipulation with an unknown input leads to a numeric error vulnerability. CWE is classifying the issue as CWE-189. This is going to have an impact on availability. The summary by CVE is:

Multiple integer overflows in pktlength.c in Chrony before 1.29 allow remote attackers to cause a denial of service (crash) via a crafted (1) REQ_SUBNETS_ACCESSED or (2) REQ_CLIENT_ACCESSES command request to the PKL_CommandLength function or crafted (3) RPY_SUBNETS_ACCESSED, (4) RPY_CLIENT_ACCESSES, (5) RPY_CLIENT_ACCESSES_BY_INDEX, or (6) RPY_MANUAL_LIST command reply to the PKL_ReplyLength function, which triggers an out-of-bounds read or buffer overflow. NOTE: versions 1.27 and 1.28 do not require authentication to exploit.

The weakness was shared 11/05/2013 as Bug 846392 as not defined bug report (Bugzilla). It is possible to read the advisory at bugzilla.redhat.com. This vulnerability is uniquely identified as CVE-2012-4502 since 08/21/2012. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 72755 (GLSA-201402-28 : Chrony: Multiple vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo Local Security Checks.

Upgrading to version 1.0 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (86340), Tenable (72755), SecurityFocus (BID 61700†) and Vulnerability Center (SBV-41134†). The entry VDB-65440 is related to this item. Be aware that VulDB is the high quality 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

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Numeric error
CWE: CWE-189
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: 72755
Nessus Name: GLSA-201402-28 : Chrony: Multiple vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 892760
OpenVAS Name: Debian Security Advisory DSA 2760-1 (chrony - several vulnerabilities
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Chrony 1.0
Patch: 7712455d9aa33d0db0945effaa07e900b85987b1

Timelineinfo

08/21/2012 🔍
08/08/2013 +352 days 🔍
08/20/2013 +12 days 🔍
11/05/2013 +77 days 🔍
11/05/2013 +0 days 🔍
03/02/2014 +117 days 🔍
03/24/2015 +387 days 🔍
01/10/2022 +2484 days 🔍

Sourcesinfo

Advisory: Bug 846392
Status: Not defined
Confirmation: 🔍

CVE: CVE-2012-4502 (🔍)
GCVE (CVE): GCVE-0-2012-4502
GCVE (VulDB): GCVE-100-65439

OVAL: 🔍

X-Force: 86340
SecurityFocus: 61700
Vulnerability Center: 41134 - Chrony 1.27 -1.28 Remote DoS Vulnerability via Authentication Request (CVE-2012-4502), Medium

See also: 🔍

Entryinfo

Created: 03/24/2015 15:54
Updated: 01/10/2022 09:51
Changes: 03/24/2015 15:54 (69), 05/09/2017 09:04 (3), 01/10/2022 09:49 (4), 01/10/2022 09:51 (1)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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