CVE-2013-7338: Input Validation
First published: Tue Apr 22 2014(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Python 2.7 | =3.3.0 | |
| Python 2.7 | =3.3.0-alpha1 | |
| Python 2.7 | =3.3.0-alpha2 | |
| Python 2.7 | =3.3.0-alpha3 | |
| Python 2.7 | =3.3.0-alpha4 | |
| Python 2.7 | =3.3.0-beta1 | |
| Python 2.7 | =3.3.0-beta2 | |
| Python 2.7 | =3.3.0-rc1 | |
| Python 2.7 | =3.3.0-rc2 | |
| Python 2.7 | =3.3.0-rc3 | |
| Python 2.7 | =3.3.1 | |
| Python 2.7 | =3.3.1-rc1 | |
| Python 2.7 | =3.3.2 | |
| Python 2.7 | =3.3.3 | |
| Python 2.7 | =3.3.3-rc1 | |
| Python 2.7 | =3.3.3-rc2 | |
| Apple iOS and macOS | <=10.10.4 | |
| =3.3.0 | ||
| =3.3.0-alpha1 | ||
| =3.3.0-alpha2 | ||
| =3.3.0-alpha3 | ||
| =3.3.0-alpha4 | ||
| =3.3.0-beta1 | ||
| =3.3.0-beta2 | ||
| =3.3.0-rc1 | ||
| =3.3.0-rc2 | ||
| =3.3.0-rc3 | ||
| =3.3.1 | ||
| =3.3.1-rc1 | ||
| =3.3.2 | ||
| =3.3.3 | ||
| =3.3.3-rc1 | ||
| =3.3.3-rc2 | ||
| <=10.10.4 |
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Reference Links
- http://bugs.python.org/issue20078
- http://hg.python.org/cpython/rev/79ea4ce431b1
- http://lists.apple.com/archives/security-announce/2015/Aug/msg00001.html
- http://lists.opensuse.org/opensuse-updates/2014-05/msg00008.html
- http://seclists.org/oss-sec/2014/q1/592
- http://seclists.org/oss-sec/2014/q1/595
- http://www.securityfocus.com/bid/65179
- http://www.securitytracker.com/id/1029973
- https://docs.python.org/3.3/whatsnew/changelog.html
- https://security.gentoo.org/glsa/201503-10
- https://support.apple.com/kb/HT205031
Frequently Asked Questions
What is the severity of CVE-2013-7338?
CVE-2013-7338 has a medium severity rating due to its potential to cause denial of service through CPU consumption.
How do I fix CVE-2013-7338?
To fix CVE-2013-7338, upgrade Python to version 3.3.4 or later.
Which Python versions are affected by CVE-2013-7338?
CVE-2013-7338 affects Python versions 3.3.0 through 3.3.3.
What type of attack does CVE-2013-7338 facilitate?
CVE-2013-7338 facilitates denial of service attacks by allowing remote attackers to induce an infinite loop.
Is CVE-2013-7338 specific to any operating system?
CVE-2013-7338 is not specific to any operating system but affects multiple versions of Python across platforms.
- agent/type
- agent/first-publish-date
- agent/references
- agent/severity
- agent/remedy
- agent/weakness
- agent/author
- agent/description
- collector/nvd-index
- agent/software-canonical-lookup-request
- collector/nvd-api
- source/NVD
- agent/software-canonical-lookup
- agent/last-modified-date
- agent/softwarecombine
- agent/source
- agent/event
- agent/tags
- vendor/python
- canonical/python 2.7
- version/python 2.7/3.3.0
- version/python 2.7/3.3.0-alpha1
- version/python 2.7/3.3.0-alpha2
- version/python 2.7/3.3.0-alpha3
- version/python 2.7/3.3.0-alpha4
- version/python 2.7/3.3.0-beta1
- version/python 2.7/3.3.0-beta2
- version/python 2.7/3.3.0-rc1
- version/python 2.7/3.3.0-rc2
- version/python 2.7/3.3.0-rc3
- version/python 2.7/3.3.1
- version/python 2.7/3.3.1-rc1
- version/python 2.7/3.3.2
- version/python 2.7/3.3.3
- version/python 2.7/3.3.3-rc1
- version/python 2.7/3.3.3-rc2
- vendor/apple
- canonical/apple ios and macos
- version/apple ios and macos/10.10.4