Summaryinfo

A vulnerability was found in Mozilla Firefox up to 65.x. It has been declared as critical. This vulnerability affects unknown code of the component Prio Library. The manipulation leads to memory corruption. This vulnerability was named CVE-2019-9805. The attack can be initiated remotely. There is no exploit available. It is recommended to upgrade the affected component. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Detailsinfo

A vulnerability was found in Mozilla Firefox up to 65.x (Web Browser). It has been classified as critical. This affects an unknown function of the component Prio Library. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

A latent vulnerability exists in the Prio library where data may be read from uninitialized memory for some functions, leading to potential memory corruption. This vulnerability affects Firefox < 66.

The bug was discovered 03/19/2019. The weakness was shared 04/26/2019. This vulnerability is uniquely identified as CVE-2019-9805 since 03/14/2019. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 09/07/2023).

The vulnerability was handled as a non-public zero-day exploit for at least 38 days. During that time the estimated underground price was around $5k-$25k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 197402 (Ubuntu Security Notification for Firefox Vulnerabilities (USN-3918-1)).

Upgrading to version 66.0 eliminates this vulnerability.

The entries VDB-134154, VDB-134162, VDB-134164 and VDB-134166 are related to this item. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• Web Browser

Vendor

• Mozilla

Name

• Firefox

Version

• 65.x

License

• open-source

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

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