SB2021070726 - Multiple vulnerabilities in hyper

Description

This security bulletin contains information about 2 vulnerabilities.

1) Input validation error (CVE-ID: CVE-2021-32715)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to improper input validation in content-length header parsing when handling HTTP requests with a content-length header prefixed by a plus sign. A remote attacker can send a specially crafted request to cause a denial of service.

2) Integer overflow (CVE-ID: CVE-2021-32714)

CWE-ID: CWE-190 - Integer overflow

CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to integer overflow in chunked transfer-encoding handling when processing chunked transfer-encoding data. A remote attacker can send specially crafted chunked transfer-encoding input to cause a denial of service.

Remediation

Install update from vendor's website.

References

• https://github.com/hyperium/hyper/security/advisories/GHSA-f3pg-qwvg-p99c
• https://github.com/hyperium/hyper/security/advisories/GHSA-5h46-h7hh-c6x9