CVE-2018-5891 Use after free in Snapdragon Mobile, Snapdragon Wear

High 8.4 Published Updated

A use-after-free vulnerability in Qualcomm Snapdragon firmware allows attackers to execute arbitrary code or cause a denial of service.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2018-5891?

CVE-2018-5891 is a high-severity use after free vulnerability in Qualcomm Msm8909w Firmware, published on 6 Jul 2018. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

While processing modem SSR after IMS is registered, the IMS data daemon is restarted but the ipc_dataHandle is no longer available. Consequently, the DPL thread frees the internal memory for dataDHandle but the local variable pointer is not updated which can lead to a Use After Free condition in Snapdragon Mobile and Snapdragon Wear.

Weakness: CWE-416

Which versions are affected by CVE-2018-5891?

It affects 15 products.

Products include Qualcomm Msm8909w Firmware, Qualcomm Msm8996au Firmware, Qualcomm Sd 205 Firmware, Qualcomm Sd 210 Firmware, Qualcomm Sd 212 Firmware, Qualcomm Sd 415 Firmware and 9 more.

How do I fix CVE-2018-5891?

No fix has been published for CVE-2018-5891 yet. Limit exposure of the affected software until one is available.

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-2018-5891 being exploited?

There is no known exploitation of CVE-2018-5891 in the wild and no public exploit code.

All Qualcomm Msm8909w Firmware vulnerabilities

Sources

Also known as GHSA-q39p-c62c-433g.

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