Perl up to 5.16.x Hash Key Rehashing resource management

CVSS Meta Temp Score
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CTI Interest Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in Perl up to 5.16.x. The affected element is an unknown function of the component Hash Key Rehashing Handler. Executing a manipulation as part of Hash Key can lead to resource management. This vulnerability is tracked as CVE-2013-1667. No exploit exists. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability was found in Perl up to 5.16.x (Programming Language Software). It has been declared as critical. This vulnerability affects an unknown function of the component Hash Key Rehashing Handler. The manipulation as part of a Hash Key leads to a resource management vulnerability. The CWE definition for the vulnerability is CWE-399. As an impact it is known to affect availability. CVE summarizes:

The rehash mechanism in Perl 5.8.2 through 5.16.x allows context-dependent attackers to cause a denial of service (memory consumption and crash) via a crafted hash key.

The weakness was disclosed 03/04/2013 by Yves Orton as confirmed mailinglist post (Website). The advisory is available at nntp.perl.org. The public release has been coordinated in cooperation with the vendor. This vulnerability was named CVE-2013-1667 since 02/13/2013. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available.

The vulnerability scanner Nessus provides a plugin with the ID 80726 (Oracle Solaris Third-Party Patch Update : perl-512 (cve_2013_1667_denial_of1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Solaris Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 350569 (Amazon Linux Security Advisory for perl: ALAS-2013-177).

Upgrading to version 5.18 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at perl5.git.perl.org. The best possible mitigation is suggested to be patching the affected component. A possible mitigation has been published immediately after the disclosure of the vulnerability. bleadperl is not affected.

The vulnerability is also documented in the databases at X-Force (82598), Tenable (80726), SecurityFocus (BID 58311†), OSVDB (90892†) and Secunia (SA52472†). The entries VDB-10928, VDB-63318, VDB-63193 and VDB-63016 are pretty similar. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 6.5

VulDB Base Score: 7.5
VulDB Temp Score: 6.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
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Current Price Estimation: 🔍

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Nessus ID: 80726
Nessus Name: Oracle Solaris Third-Party Patch Update : perl-512 (cve_2013_1667_denial_of1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 892641
OpenVAS Name: Debian Security Advisory DSA 2641-2 (perl - rehashing flaw
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
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Upgrade: Perl 5.18
Patch: perl5.git.perl.org

Timelineinfo

02/13/2013 🔍
03/04/2013 +19 days 🔍
03/04/2013 +0 days 🔍
03/05/2013 +1 days 🔍
03/08/2013 +3 days 🔍
03/13/2013 +5 days 🔍
03/26/2013 +13 days 🔍
01/19/2015 +664 days 🔍
04/27/2019 +1559 days 🔍

Sourcesinfo

Advisory: nntp.perl.org
Researcher: Yves Orton
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2013-1667 (🔍)
GCVE (CVE): GCVE-0-2013-1667
GCVE (VulDB): GCVE-100-7882

OVAL: 🔍

X-Force: 82598 - Perl rehash denial of service, Medium Risk
SecurityFocus: 58311 - Perl CVE-2013-1667 Input Rehashing Denial of Service Vulnerability
Secunia: 52472 - Perl Input Rehashing Denial of Service Vulnerability, Less Critical
OSVDB: 90892
SecurityTracker: 1028346

See also: 🔍

Entryinfo

Created: 03/08/2013 09:11
Updated: 04/27/2019 15:13
Changes: 03/08/2013 09:11 (85), 04/27/2019 15:13 (4)
Complete: 🔍
Cache ID: 216::103

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