CVE-2015-20107

2022-04-1316:15:08

Debian Security Bug Tracker

security-tracker.debian.org

181

python

mailcap module

shell commands

attackers

validation

backport

unix

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

COMPLETE

Availability Impact

PARTIAL

AV:N/AC:L/Au:S/C:P/I:C/A:P

CVSS3

7.6

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

HIGH

Availability Impact

LOW

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L

EPSS

0.002

Percentile

55.8%

JSON

In Python (aka CPython) up to 3.10.8, the mailcap module does not add escape characters into commands discovered in the system mailcap file. This may allow attackers to inject shell commands into applications that call mailcap.findmatch with untrusted input (if they lack validation of user-provided filenames or arguments). The fix is also back-ported to 3.7, 3.8, 3.9

OSVersionArchitecturePackageVersionFilename
Debian11allpython2.7<= 2.7.18-8+deb11u1python2.7_2.7.18-8+deb11u1_all.deb
Debian11allpython3.9<= 3.9.2-1python3.9_3.9.2-1_all.deb