CVE-2015-7942 Denial of service in n/a

What is CVE-2015-7942?

CVE-2015-7942 is a medium-severity denial of service vulnerability in Apple Iphone Os, published on 18 Nov 2015. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The xmlParseConditionalSections function in parser.c in libxml2 does not properly skip intermediary entities when it stops parsing invalid input, which allows context-dependent attackers to cause a denial of service (out-of-bounds read and crash) via crafted XML data, a different vulnerability than CVE-2015-7941.

Weakness: CWE-119

Which versions are affected by CVE-2015-7942?

It affects 9 products.

Products include Apple Iphone Os, Apple Mac Os X, Apple Tvos, Apple Watchos, Canonical Ubuntu Linux, Debian Debian Linux and 3 more.

How do I fix CVE-2015-7942?

Upgrade to a fixed version.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2015-7942 being exploited?

There is no known exploitation of CVE-2015-7942 in the wild and no public exploit code.

Other vulnerabilities in Apple Iphone Os

• CVE-2021-30666 Apple iOS WebKit Buffer Overflow Exploited High 8.8
• CVE-2021-30761 Apple iOS WebKit Memory Corruption Exploited High 8.8
• CVE-2021-30762 Apple iOS WebKit Use-After-Free Exploited High 8.8
• CVE-2016-4657 Apple iOS Webkit Memory Corruption Exploited High 8.8
• CVE-2019-7286 Apple Multiple Products Memory Corruption Exploited High 7.8

All Apple Iphone Os vulnerabilities

Sources

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

Also known as DEBIAN-CVE-2015-7942, DLA-334-1, ECHO-5af9-e1c6-cbba, GHSA-w76w-8f65-r427, MGASA-2015-0423, UBUNTU-CVE-2015-7942.