CVE-2010-3495 Zope Object Database Denial of Service vulnerability

Medium 4.3 Published Updated

Remote attackers can cause a denial of service in ZODB by exploiting a race condition during TCP connection handling, crashing the daemon.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2010-3495?

CVE-2010-3495 is a medium-severity vulnerability in n/a, published on 19 Oct 2010. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-362

Which versions are affected by CVE-2010-3495?

3 open source packages ship an affected version, including zodb3. It affects 1 product.

PackageAffectedFixed in
zodb3 PyPIAll versions3.10.0a1
zodb3 PyPIAll versions3.10.0a2
zodb3 PyPIAll versions3.10.0a2

Products include Zope Zodb.

How do I fix CVE-2010-3495?

Upgrade zodb3 to a fixed version for your release line: 3.10.0a1 or 3.10.0a2.

Is CVE-2010-3495 being exploited?

There is no known exploitation of CVE-2010-3495 in the wild and no public exploit code.

Sources

Also known as GHSA-j6m4-frxh-p4x8, PYSEC-2010-27.

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