CVE-2012-4540 Memory corruption in n/a

Medium 6.8 Published 11 Nov 2012 Updated 6 Aug 2024

Remote attackers can execute arbitrary code, cause crashes, or read sensitive data via a crafted webpage exploiting a heap-based buffer overflow in the IcedTea-Web plugin.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: Available

What is CVE-2012-4540?

CVE-2012-4540 is a medium-severity memory corruption vulnerability in Opensuse Opensuse, published on 11 Nov 2012. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Off-by-one error in the invoke function in IcedTeaScriptablePluginObject.cc in IcedTea-Web 1.1.x before 1.1.7, 1.2.x before 1.2.2, 1.3.x before 1.3.1, and 1.4.x before 1.4.1 allows remote attackers to obtain sensitive information, cause a denial of service (crash), or possibly execute arbitrary code via a crafted webpage that triggers a heap-based buffer overflow, related to an error message and a "triggering event attached to applet." NOTE: the 1.4.x versions were originally associated with CVE-2013-4349, but that entry has been MERGED with this one.

Weakness: CWE-189

Which versions are affected by CVE-2012-4540?

It affects 2 products.

Linux distribution packages (12)

`icedtea-web` Red Hat:enterprise_linux:6::client	All versions	`0:1.2.2-1.el6_3`
`icedtea-web-debuginfo` Red Hat:enterprise_linux:6::client	All versions	`0:1.2.2-1.el6_3`
`icedtea-web-javadoc` Red Hat:enterprise_linux:6::client	All versions	`0:1.2.2-1.el6_3`
`icedtea-web` Red Hat:enterprise_linux:6::computenode	All versions	`0:1.2.2-1.el6_3`
`icedtea-web-debuginfo` Red Hat:enterprise_linux:6::computenode	All versions	`0:1.2.2-1.el6_3`
`icedtea-web-javadoc` Red Hat:enterprise_linux:6::computenode	All versions	`0:1.2.2-1.el6_3`
`icedtea-web` Red Hat:enterprise_linux:6::server	All versions	`0:1.2.2-1.el6_3`
`icedtea-web-debuginfo` Red Hat:enterprise_linux:6::server	All versions	`0:1.2.2-1.el6_3`
`icedtea-web-javadoc` Red Hat:enterprise_linux:6::server	All versions	`0:1.2.2-1.el6_3`
`icedtea-web` Red Hat:enterprise_linux:6::workstation	All versions	`0:1.2.2-1.el6_3`
`icedtea-web-debuginfo` Red Hat:enterprise_linux:6::workstation	All versions	`0:1.2.2-1.el6_3`
`icedtea-web-javadoc` Red Hat:enterprise_linux:6::workstation	All versions	`0:1.2.2-1.el6_3`

Products include Opensuse Opensuse, Redhat Icedtea-Web.

How do I fix CVE-2012-4540?

Upgrade to a fixed version.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2012-4540 being exploited?

There is no known exploitation of CVE-2012-4540 in the wild and no public exploit code.

All Opensuse Opensuse vulnerabilities

Sources

Also known as DEBIAN-CVE-2012-4540, DSA-2768-1, GHSA-44v2-cg42-mx34, RHSA-2012:1434.