PT-2017-5761 · Python+2 · Python Cryptography Toolkit+2

Published 2017-01-16 · Updated 2026-01-17 · CVE-2013-7459

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions: Python Cryptography Toolkit (aka pycrypto) (affected versions not specified)

Description: The issue is related to a heap-based buffer overflow in the ALGnew function in block templace.c. This can be exploited by remote attackers to execute arbitrary code, for example, by using a crafted iv parameter.

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

RCE

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

CVE-2013-7459

DLA-773-1

GHSA-CQ27-V7XP-C356

MGASA-2017-0032

OPENSUSE-SU-2017_0156-1

PYSEC-2017-94

SUSE-SU-2017:1744-1

SUSE-SU-2017:2350-1

SUSE-SU-2017_2350-1

USN-3199-1

USN-3199-2

USN-3199-3

Affected Products

Python Cryptography Toolkit

Suse

Ubuntu

References · 36

• 🔥 https://pony7.fr/ctf:public:32c3:cryptmsg · Exploit
• https://github.com/dlitz/pycrypto/issues/176 · Vendor Advisory
• https://github.com/dlitz/pycrypto/commit/8dbe0dc3eea5c689d4f76b37b93fe216cf1f00d4 · Patch
• https://osv.dev/vulnerability/MGASA-2017-0032 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-cq27-v7xp-c356 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-3199-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2013-7459 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2013-7459 · Security Note
• https://security.gentoo.org/glsa/201702-14 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/[e-mail]/message/RJ37R2YLX56YZABFNAOWV4VTHTGYREAE · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RJ37R2YLX56YZABFNAOWV4VTHTGYREAE · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2017:2350-1 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/C6BWNADPLKDBBQBUT3P75W7HAJCE7M3B · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2017-94 · Vendor Advisory
• https://osv.dev/vulnerability/USN-3199-1 · Vendor Advisory