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CVE-2013-7459

Publication date 15 February 2017

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

9.8 · Critical

Score breakdown

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.

Status

Package Ubuntu Release Status
python-crypto 17.04 zesty
Not affected
16.10 yakkety
Fixed 2.6.1-6ubuntu0.16.10.2
16.04 LTS xenial
Fixed 2.6.1-6ubuntu0.16.04.1
14.04 LTS trusty
Fixed 2.6.1-4ubuntu0.1
12.04 LTS precise Ignored

Severity score breakdown

Parameter Value
Base score 9.8 · Critical
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

    • USN-3199-2
    • Python Crypto regression
    • 17 February 2017
    • USN-3199-1
    • Python Crypto vulnerability
    • 16 February 2017
    • USN-3199-3
    • Python Crypto vulnerability
    • 28 August 2017

Other references