NVD - CVE-2013-7459

CVE-2013-7459 Detail

Modified

This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.

Current Description

Heap-based buffer overflow in the ALGnew function in block_templace.c in Python Cryptography Toolkit (aka pycrypto) allows remote attackers to execute arbitrary code as demonstrated by a crafted iv parameter to cryptmsg.py.

Source: MITRE
Description Last Modified: 02/15/2017
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 9.8 CRITICAL
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H (V3 legend)
Impact Score: 5.9
Exploitability Score: 3.9

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 7.5 HIGH
Vector: (AV:N/AC:L/Au:N/C:P/I:P/A:P) (V2 legend)
Impact Subscore: 6.4
Exploitability Subscore: 10.0

Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): Partial
Availability (A): Partial
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink	Resource
http://www.openwall.com/lists/oss-security/2016/12/27/8	Mailing List Third Party Advisory
http://www.securityfocus.com/bid/95122	Third Party Advisory VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1409754	Issue Tracking Third Party Advisory VDB Entry
https://github.com/dlitz/pycrypto/commit/8dbe0dc3eea5c689d4f76b37b93fe216cf1f00d4	Patch
https://github.com/dlitz/pycrypto/issues/176	Patch Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/C6BWNADPLKDBBQBUT3P75W7HAJCE7M3B/	Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RJ37R2YLX56YZABFNAOWV4VTHTGYREAE/	Third Party Advisory
https://pony7.fr/ctf:public:32c3:cryptmsg	Exploit Technical Description Third Party Advisory
https://security.gentoo.org/glsa/201702-14

Technical Details

Vulnerability Type (View All)

Buffer Errors (CWE-119)

Vulnerable software and versions Switch to CPE 2.2

Configuration 1
OR
cpe:2.3:a:dlitz:pycrypto:*:*:*:*:*:*:*:* versions up to (including) 2.6.1
Configuration 2
OR
cpe:2.3:o:fedoraproject:fedora:24:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:25:*:*:*:*:*:*:*

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

2 change records found - show changes

Initial Analysis - 2/23/2017 1:15:30 PM

Action	Type	Old Value	New Value
Added	CPE Configuration		OR cpe:2.3:a:dlitz:pycrypto:2.6.1::::::: (and previous)
Added	CPE Configuration		OR cpe:2.3:o:fedoraproject:fedora:24::::::: cpe:2.3:o:fedoraproject:fedora:25:::::::
Added	CVSS V2		(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Added	CVSS V3		AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Added	CWE		CWE-119
Changed	Reference Type	http://www.openwall.com/lists/oss-security/2016/12/27/8 No Types Assigned	http://www.openwall.com/lists/oss-security/2016/12/27/8 Third Party Advisory, Mailing List
Changed	Reference Type	http://www.securityfocus.com/bid/95122 No Types Assigned	http://www.securityfocus.com/bid/95122 Third Party Advisory, VDB Entry
Changed	Reference Type	https://bugzilla.redhat.com/show_bug.cgi?id=1409754 No Types Assigned	https://bugzilla.redhat.com/show_bug.cgi?id=1409754 Third Party Advisory, VDB Entry, Issue Tracking
Changed	Reference Type	https://github.com/dlitz/pycrypto/commit/8dbe0dc3eea5c689d4f76b37b93fe216cf1f00d4 No Types Assigned	https://github.com/dlitz/pycrypto/commit/8dbe0dc3eea5c689d4f76b37b93fe216cf1f00d4 Patch
Changed	Reference Type	https://github.com/dlitz/pycrypto/issues/176 No Types Assigned	https://github.com/dlitz/pycrypto/issues/176 Vendor Advisory, Patch
Changed	Reference Type	https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/C6BWNADPLKDBBQBUT3P75W7HAJCE7M3B/ No Types Assigned	https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/C6BWNADPLKDBBQBUT3P75W7HAJCE7M3B/ Third Party Advisory
Changed	Reference Type	https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RJ37R2YLX56YZABFNAOWV4VTHTGYREAE/ No Types Assigned	https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RJ37R2YLX56YZABFNAOWV4VTHTGYREAE/ Third Party Advisory
Changed	Reference Type	https://pony7.fr/ctf:public:32c3:cryptmsg No Types Assigned	https://pony7.fr/ctf:public:32c3:cryptmsg Third Party Advisory, Technical Description, Exploit

Quick Info

CVE Dictionary Entry:
CVE-2013-7459
NVD Published Date:
02/15/2017
NVD Last Modified:
06/30/2017

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National Vulnerability Database