SB2022060936 - Multiple vulnerabilities in Xen x86 pv

Description

This security bulletin contains information about 2 vulnerabilities.

1) Buffer overflow (CVE-ID: CVE-2022-26363)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to insufficient care with non-coherent mappings. A remote attacker can pass a specially crafted data and trigger memory corruption and execute arbitrary code on the target system.

2) Buffer overflow (CVE-ID: CVE-2022-26364)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to insufficient care with non-coherent mappings. A remote attacker can pass a specially crafted data and trigger memory corruption and execute arbitrary code on the target system.

Remediation

Install update from vendor's website.

References

• https://xenbits.xenproject.org/xsa/advisory-402.txt
• http://www.openwall.com/lists/oss-security/2022/06/09/4
• http://xenbits.xen.org/xsa/advisory-402.html