CVE-2015-7181 Use after free in n/a

What is CVE-2015-7181?

CVE-2015-7181 is a high-severity use after free vulnerability in Mozilla Firefox, published on 5 Nov 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

The sec_asn1d_parse_leaf function in Mozilla Network Security Services (NSS) before 3.19.2.1 and 3.20.x before 3.20.1, as used in Firefox before 42.0 and Firefox ESR 38.x before 38.4 and other products, improperly restricts access to an unspecified data structure, which allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via crafted OCTET STRING data, related to a "use-after-poison" issue.

Weakness: CWE-119

Which versions are affected by CVE-2015-7181?

It affects 2 products.

Products include Mozilla Firefox, Mozilla Network Security Services.

How do I fix CVE-2015-7181?

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-2015-7181 being exploited?

There is no known exploitation of CVE-2015-7181 in the wild and no public exploit code.

Other vulnerabilities in Mozilla Firefox

• CVE-2019-11708 Mozilla Firefox and Thunderbird Sandbox Escape Exploited Critical 10.0
• CVE-2010-3765 Mozilla Multiple Products Remote Code Execution Exploited Critical 9.8
• CVE-2022-26486 Mozilla Firefox Use-After-Free Exploited Critical 9.6
• CVE-2022-26485 Mozilla Firefox Use-After-Free Exploited High 8.8
• CVE-2019-11707 Mozilla Firefox and Thunderbird Type Confusion Exploited High 8.8

All Mozilla Firefox vulnerabilities

Sources

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

Also known as DEBIAN-CVE-2015-7181, GHSA-738m-rm9h-8qh7, UBUNTU-CVE-2015-7181.