Vulnerability Name:

CVE-2013-7338 (CCN-90795)

Assigned:2014-01-04
Published:2014-01-04
Updated:2019-08-21
Summary:Python before 3.3.4 RC1 allows remote attackers to cause a denial of service (infinite loop and CPU consumption) via a file size value larger than the size of the zip file to the (1) ZipExtFile.read, (2) ZipExtFile.read(n), (3) ZipExtFile.readlines, (4) ZipFile.extract, or (5) ZipFile.extractall function.
CVSS v3 Severity:5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Low
CVSS v2 Severity:7.1 High (CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:N/A:C)
5.3 Medium (Temporal CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:N/A:C/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
3.7 Low (CCN Temporal CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
Vulnerability Type:CWE-20
Vulnerability Consequences:Denial of Service
References:Source: CCN
Type: Python Web site
zipfile - ZipExtFile.read goes into 100% CPU infinite loop on maliciously binary edited zips

Source: CONFIRM
Type: Exploit, Patch, Vendor Advisory
http://bugs.python.org/issue20078

Source: MITRE
Type: CNA
CVE-2013-7338

Source: CONFIRM
Type: Exploit, Patch, Vendor Advisory
http://hg.python.org/cpython/rev/79ea4ce431b1

Source: APPLE
Type: Mailing List
APPLE-SA-2015-08-13-2

Source: SUSE
Type: Mailing List, Third Party Advisory
openSUSE-SU-2014:0597

Source: CCN
Type: oss-security Mailing List, Tue 18 Mar 2014
CVE request for python/zipfile

Source: MLIST
Type: Mailing List, Third Party Advisory
[oss-security] 20140318 CVE request for python/zipfile

Source: MLIST
Type: Mailing List, Third Party Advisory
[oss-security] 20140319 Re: CVE request for python/zipfile

Source: CCN
Type: SA56627
Python "ZipExtFile._read2()" Denial of Service Vulnerability

Source: BID
Type: Third Party Advisory, VDB Entry
65179

Source: CCN
Type: BID-65179
Python 'ZipExtFile._read2()' Method Denial of Service Vulnerability

Source: SECTRACK
Type: Third Party Advisory, VDB Entry
1029973

Source: CONFIRM
Type: Vendor Advisory
https://docs.python.org/3.3/whatsnew/changelog.html

Source: XF
Type: UNKNOWN
python-zipextfile-dos(90795)

Source: GENTOO
Type: Third Party Advisory
GLSA-201503-10

Source: CONFIRM
Type: Patch, Vendor Advisory
https://support.apple.com/kb/HT205031

Vulnerable Configuration:Configuration 1:
  • cpe:/a:python:python:3.3.0:-:*:*:*:*:*:*
  • OR cpe:/a:python:python:3.3.0:alpha1:*:*:*:*:*:*
  • OR cpe:/a:python:python:3.3.0:alpha2:*:*:*:*:*:*
  • OR cpe:/a:python:python:3.3.0:alpha3:*:*:*:*:*:*
  • OR cpe:/a:python:python:3.3.0:alpha4:*:*:*:*:*:*
  • OR cpe:/a:python:python:3.3.0:beta1:*:*:*:*:*:*
  • OR cpe:/a:python:python:3.3.0:beta2:*:*:*:*:*:*
  • OR cpe:/a:python:python:3.3.0:rc1:*:*:*:*:*:*
  • OR cpe:/a:python:python:3.3.0:rc2:*:*:*:*:*:*
  • OR cpe:/a:python:python:3.3.0:rc3:*:*:*:*:*:*
  • OR cpe:/a:python:python:3.3.1:-:*:*:*:*:*:*
  • OR cpe:/a:python:python:3.3.1:rc1:*:*:*:*:*:*
  • OR cpe:/a:python:python:3.3.2:*:*:*:*:*:*:*
  • OR cpe:/a:python:python:3.3.3:-:*:*:*:*:*:*
  • OR cpe:/a:python:python:3.3.3:rc1:*:*:*:*:*:*
  • OR cpe:/a:python:python:3.3.3:rc2:*:*:*:*:*:*

    • Configuration 2:
  • cpe:/o:apple:mac_os_x:*:*:*:*:*:*:*:* (Version <= 10.10.4)

    • Configuration CCN 1:
  • cpe:/a:python:python:3.3.3:-:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:20137338
    V
    		CVE-2013-7338
    2017-03-01
    oval:com.ubuntu.precise:def:20137338000
    V
    		CVE-2013-7338 on Ubuntu 12.04 LTS (precise) - low.
    2014-04-22
    oval:com.ubuntu.trusty:def:20137338000
    V
    		CVE-2013-7338 on Ubuntu 14.04 LTS (trusty) - low.
    2014-04-22
    BACK
    python python 3.3.0 -
    python python 3.3.0 alpha1
    python python 3.3.0 alpha2
    python python 3.3.0 alpha3
    python python 3.3.0 alpha4
    python python 3.3.0 beta1
    python python 3.3.0 beta2
    python python 3.3.0 rc1
    python python 3.3.0 rc2
    python python 3.3.0 rc3
    python python 3.3.1 -
    python python 3.3.1 rc1
    python python 3.3.2
    python python 3.3.3
    python python 3.3.3 rc1
    python python 3.3.3 rc2
    apple mac os x *
    python python 3.3.3