bsdiff4 up to 1.1.x Patching Route out-of-bounds write

Summaryinfo

A vulnerability was found in bsdiff4 up to 1.1.x. It has been rated as critical. The affected element is an unknown function of the component Patching Route Handler. The manipulation leads to out-of-bounds write. This vulnerability is traded as CVE-2020-15904. An attack has to be approached locally. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as critical, has been found in bsdiff4 up to 1.1.x. This issue affects an unknown function of the component Patching Route Handler. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. Using CWE to declare the problem leads to CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

A buffer overflow in the patching routine of bsdiff4 before 1.2.0 allows an attacker to write to heap memory (beyond allocated bounds) via a crafted patch file.

The weakness was shared 07/22/2020. The identification of this vulnerability is CVE-2020-15904 since 07/22/2020. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 1.2.0 eliminates this vulnerability.

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Productinfo

Name

• bsdiff4

Version

• 1.0
• 1.1

CPE 2.3info

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CPE 2.2info

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