CVE-2015-1243 Use after free in n/a

What is CVE-2015-1243?

CVE-2015-1243 is a high-severity use after free vulnerability in Canonical Ubuntu Linux, published on 1 May 2015. 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

Use-after-free vulnerability in the MutationObserver::disconnect function in core/dom/MutationObserver.cpp in the DOM implementation in Blink, as used in Google Chrome before 42.0.2311.135, allows remote attackers to cause a denial of service or possibly have unspecified other impact by triggering an attempt to unregister a MutationObserver object that is not currently registered.

Which versions are affected by CVE-2015-1243?

It affects 7 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Google Chrome, Redhat Enterprise Linux Desktop Supplementary, Redhat Enterprise Linux Server Supplementary, Redhat Enterprise Linux Server Supplementary Eus and 1 more.

How do I fix CVE-2015-1243?

Upgrade to a fixed version.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2015-1243 being exploited?

There is no known exploitation of CVE-2015-1243 in the wild and no public exploit code.

Other vulnerabilities in Canonical Ubuntu Linux

• CVE-2020-11651 SaltStack Salt Authentication Bypass Exploited Critical 9.8
• CVE-2020-7247 OpenSMTPD Remote Code Execution Exploited Critical 9.8
• CVE-2019-16928 Exim Out-of-bounds Write Exploited Critical 9.8
• CVE-2018-6789 Exim Buffer Overflow Exploited Critical 9.8
• CVE-2015-2590 Oracle Java SE and Java SE Embedded Remote Code Execution Exploited Critical 9.8

All Canonical Ubuntu Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-x698-8p98-2886, UBUNTU-CVE-2015-1243.