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CVE-2010-3493

Status Candidate

Overview

Multiple race conditions in smtpd.py in the smtpd module in Python 2.6, 2.7, 3.1, and 3.2 alpha allow remote attackers to cause a denial of service (daemon outage) by establishing and then immediately closing a TCP connection, leading to the accept function having an unexpected return value of None, an unexpected value of None for the address, or an ECONNABORTED, EAGAIN, or EWOULDBLOCK error, or the getpeername function having an ENOTCONN error, a related issue to CVE-2010-3492.

Related Files

Gentoo Linux Security Advisory 201401-04
Posted Jan 6, 2014
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201401-4 - Multiple vulnerabilities have been found in Python, worst of which allows remote attackers to cause a Denial of Service condition. Versions less than 3.3.2-r1 are affected.

tags | advisory, remote, denial of service, vulnerability, python
systems | linux, gentoo
advisories | CVE-2010-1634, CVE-2010-2089, CVE-2010-3492, CVE-2010-3493, CVE-2011-1015, CVE-2012-0845, CVE-2012-1150, CVE-2013-2099
MD5 | 9388c3a826bad9d0f5b92b7964b28ae6
Ubuntu Security Notice USN-1613-2
Posted Oct 18, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1613-2 - USN-1613-1 fixed vulnerabilities in Python 2.5. This update provides the corresponding updates for Python 2.4. It was discovered that Python would prepend an empty string to sys.path under certain circumstances. A local attacker with write access to the current working directory could exploit this to execute arbitrary code. Various other issues were also addressed.

tags | advisory, arbitrary, local, vulnerability, python
systems | linux, ubuntu
advisories | CVE-2008-5983, CVE-2010-3493, CVE-2011-1015, CVE-2011-1521, CVE-2011-4940, CVE-2011-4944, CVE-2012-0845, CVE-2012-0876, CVE-2012-1148, CVE-2008-5983, CVE-2010-1634, CVE-2010-2089, CVE-2010-3493, CVE-2011-1015, CVE-2011-1521, CVE-2011-4940, CVE-2011-4944, CVE-2012-0845, CVE-2012-0876, CVE-2012-1148
MD5 | 3ddeab56299a8cc01537f7b23b77d009
Ubuntu Security Notice USN-1613-1
Posted Oct 18, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1613-1 - It was discovered that Python would prepend an empty string to sys.path under certain circumstances. A local attacker with write access to the current working directory could exploit this to execute arbitrary code. It was discovered that the audioop module did not correctly perform input validation. If a user or automated system were tricked into opening a crafted audio file, an attacker could cause a denial of service via application crash. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, local, python
systems | linux, ubuntu
advisories | CVE-2008-5983, CVE-2010-3493, CVE-2011-1015, CVE-2011-1521, CVE-2011-4940, CVE-2011-4944, CVE-2012-0845, CVE-2012-0876, CVE-2012-1148, CVE-2008-5983, CVE-2010-1634, CVE-2010-2089, CVE-2010-3493, CVE-2011-1015, CVE-2011-1521, CVE-2011-4940, CVE-2011-4944, CVE-2012-0845, CVE-2012-0876, CVE-2012-1148
MD5 | ba65090626e4879ab3333610086858c6
Ubuntu Security Notice USN-1596-1
Posted Oct 5, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1596-1 - It was discovered that Python would prepend an empty string to sys.path under certain circumstances. A local attacker with write access to the current working directory could exploit this to execute arbitrary code. It was discovered that the audioop module did not correctly perform input validation. If a user or automated system were tricked into opening a crafted audio file, an attacker could cause a denial of service via application crash. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, local, python
systems | linux, ubuntu
advisories | CVE-2008-5983, CVE-2010-3493, CVE-2011-1015, CVE-2011-1521, CVE-2011-4940, CVE-2011-4944, CVE-2012-0845, CVE-2012-1150, CVE-2008-5983, CVE-2010-1634, CVE-2010-2089, CVE-2010-3493, CVE-2011-1015, CVE-2011-1521, CVE-2011-4940, CVE-2011-4944, CVE-2012-0845, CVE-2012-1150
MD5 | 077d2cf947d04a01882d946bad5a363b
VMware Security Advisory 2012-0001
Posted Jan 30, 2012
Authored by VMware | Site vmware.com

VMware Security Advisory 2012-0001 - VMware ESXi and ESX updates to third party library and ESX Service Console address several security issues.

tags | advisory
advisories | CVE-2009-3560, CVE-2009-3720, CVE-2010-0547, CVE-2010-0787, CVE-2010-1634, CVE-2010-2059, CVE-2010-2089, CVE-2010-3493, CVE-2010-4649, CVE-2011-0695, CVE-2011-0711, CVE-2011-0726, CVE-2011-1015, CVE-2011-1044, CVE-2011-1078, CVE-2011-1079, CVE-2011-1080, CVE-2011-1093, CVE-2011-1163, CVE-2011-1166, CVE-2011-1170, CVE-2011-1171, CVE-2011-1172, CVE-2011-1182, CVE-2011-1494, CVE-2011-1495, CVE-2011-1521, CVE-2011-1573
MD5 | f01c53578bb58b204ee302611e8e3317
Ubuntu Security Notice USN-1314-1
Posted Dec 20, 2011
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1314-1 - Giampaolo Rodola discovered that the smtpd module in Python 3 did not properly handle certain error conditions. A remote attacker could exploit this to cause a denial of service via daemon outage. This issue only affected Ubuntu 10.04 LTS. Niels Heinen discovered that the urllib module in Python 3 would process Location headers that specify a file:// URL. A remote attacker could use this to obtain sensitive information or cause a denial of service via resource consumption. Various other issues were also addressed.

tags | advisory, remote, denial of service, python
systems | linux, ubuntu
advisories | CVE-2010-3493, CVE-2011-1521
MD5 | 1b3828fdc3bf3f758d7854e9a3c461cb
Mandriva Linux Security Advisory 2010-216
Posted Nov 2, 2010
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory 2010-216 - The asyncore module in Python before 3.2 does not properly handle unsuccessful calls to the accept function, and does not have accompanying documentation describing how daemon applications should handle unsuccessful calls to the accept function, which makes it easier for remote attackers to conduct denial of service attacks that terminate these applications via network connections. Multiple race conditions in smtpd.py in the smtpd module in Python 2.6, 2.7, 3.1, and 3.2 alpha allow remote attackers to cause a denial of service by establishing and then immediately closing a TCP connection, leading to the accept function having an unexpected return value of None, an unexpected value of None for the address, or an ECONNABORTED, EAGAIN, or EWOULDBLOCK error, or the getpeername function having an ENOTCONN error, a related issue to CVE-2010-3492. The updated packages have been patched to correct these issues.

tags | advisory, remote, denial of service, tcp, python
systems | linux, mandriva
advisories | CVE-2010-3492, CVE-2010-3493
MD5 | 0186513386609aab2c3e9317832b8fbb
Mandriva Linux Security Advisory 2010-215
Posted Nov 1, 2010
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory 2010-215 - Buffer underflow in the rgbimg module in Python 2.5 allows remote attackers to cause a denial of service via a large ZSIZE value in a black-and-white RGB image that triggers an invalid pointer dereference. Integer overflow in rgbimgmodule.c in the rgbimg module in Python 2.5 allows remote attackers to have an unspecified impact via a large image that triggers a buffer overflow. Multiple buffer overflows in the RLE decoder in the rgbimg module in Python 2.5 allow remote attackers to have an unspecified impact via an image file containing crafted data that triggers improper processing within the expandrow function. The asyncore module in Python before 3.2 does not properly handle unsuccessful calls to the accept function, and does not have accompanying documentation describing how daemon applications should handle unsuccessful calls to the accept function, which makes it easier for remote attackers to conduct denial of service attacks that terminate these applications via network connections. Multiple race conditions in smtpd.py in the smtpd module in Python 2.6, 2.7, 3.1, and 3.2 alpha allow remote attackers to cause a denial of service by establishing and then immediately closing a TCP connection, leading to the accept function having an unexpected return value of None, an unexpected value of None for the address, or an ECONNABORTED, EAGAIN, or EWOULDBLOCK error, or the getpeername function having an ENOTCONN error, a related issue to CVE-2010-3492.

tags | advisory, remote, denial of service, overflow, tcp, python
systems | linux, mandriva
advisories | CVE-2009-4134, CVE-2010-1449, CVE-2010-1450, CVE-2010-3492, CVE-2010-3493
MD5 | b162c6596ed296946a62201f36edf713
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