CVE-2010-3495

Severity: medium (CVSS 4.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2010-10-19 · updated 2026-06-16
Weakness: CWE-362

Description

Race condition in ZEO/StorageServer.py in Zope Object Database (ZODB) before 3.10.0 allows 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, a related issue to CVE-2010-3492.

Affected products

zope Zodb: through 3.9.7; 2.8.11, 2.9.11, 2.10.9, 2.11.4, 3.1, 3.1.1 (+21)

References

http://bugs.python.org/issue6706
http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00006.html
http://pypi.python.org/pypi/ZODB3/3.10.0#id1
http://secunia.com/advisories/41755
http://www.openwall.com/lists/oss-security/2010/09/09/6
http://www.openwall.com/lists/oss-security/2010/09/11/2
http://www.openwall.com/lists/oss-security/2010/09/22/3
http://www.openwall.com/lists/oss-security/2010/09/24/3
https://bugs.launchpad.net/zodb/+bug/135108
http://bugs.python.org/issue6706
http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00006.html
http://pypi.python.org/pypi/ZODB3/3.10.0#id1

Get alerted when CVE-2010-3495 or the next vulnerability affects your stack