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CVE-2015-7686

Date: October 3, 2015

Algorithmic complexity vulnerability in Address.pm in the Email-Address module 1.908 and earlier for Perl allows remote attackers to cause a denial of service (CPU consumption) via a crafted string containing a list of e-mail addresses in conjunction with parenthesis characters that can be associated with nested comments. NOTE: the default configuration in 1.908 mitigates this vulnerability but misparses certain realistic comments.

Severity Score

Related Resources (8)

http://www.openwall.com/lists/oss-security/2015/09/27/1
https://nvd.nist.gov/vuln/detail/CVE-2015-7686
https://access.redhat.com/security/cve/CVE-2015-7686
https://forum.bestpractical.com/t/security-vulnerabilities-in-rt-2017-06-15/32016
https://security-tracker.debian.org/tracker/CVE-2015-7686
https://people.canonical.com/~ubuntu-security/cve/CVE-2015-7686
http://www.openwall.com/lists/oss-security/2015/10/02/13
https://www.mend.io/vulnerability-database/CVE-2015-7686

Severity Score

Weakness Type (CWE)

Input Validation

CWE-20

Resource Management Errors

CWE-399

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): COMPLETE
Additional information:

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