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debianDebianDEBIAN:DLA-1519-1:1A158
HistorySep 25, 2018 - 11:47 p.m.

[SECURITY] [DLA 1519-1] python2.7 security update

2018-09-2523:47:43
lists.debian.org
36
python2.7
security update
cve-2017-1000158
cve-2018-1060
cve-2018-1061
cve-2018-1000802
debian 8
jessie
cpython interpreter
denial of service
information gain
arbitrary code execution
integer overflow
buffer overflow
command injection
debian lts

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

10

Confidence

High

EPSS

0.014

Percentile

86.6%

Package : python2.7
Version : 2.7.9-2+deb8u2
CVE ID : CVE-2017-1000158 CVE-2018-1060 CVE-2018-1061 CVE-2018-1000802

Multiple vulnerabilities were found in the CPython interpreter which
can cause denial of service, information gain, and arbitrary code
execution.

CVE-2017-1000158

CPython (aka Python) is vulnerable to an integer overflow in the
PyString_DecodeEscape function in stringobject.c, resulting in
heap-based buffer overflow (and possible arbitrary code execution)

CVE-2018-1060

python is vulnerable to catastrophic backtracking in pop3lib's
apop() method. An attacker could use this flaw to cause denial of
service.

CVE-2018-1061

python is vulnerable to catastrophic backtracking in the
difflib.IS_LINE_JUNK method. An attacker could use this flaw to
cause denial of service.

CVE-2018-1000802

Python Software Foundation Python (CPython) version 2.7 contains a
CWE-77: Improper Neutralization of Special Elements used in a
Command ('Command Injection') vulnerability in shutil module
(make_archive function) that can result in Denial of service,
Information gain via injection of arbitrary files on the system or
entire drive. This attack appear to be exploitable via Passage of
unfiltered user input to the function.

For Debian 8 "Jessie", these problems have been fixed in version
2.7.9-2+deb8u2.

We recommend that you upgrade your python2.7 packages.

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS

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CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

10

Confidence

High

EPSS

0.014

Percentile

86.6%