SB2021030302 - Multiple vulnerabilities in VMware Tanzu Application Service for VMs and Isolation Segment

Description

This security bulletin contains information about 3 vulnerabilities.

1) NULL pointer dereference (CVE-ID: CVE-2020-16588)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error in generatePreview in makePreview.cpp. A remote attacker can use a specially crafted EXR file and perform a denial of service (DoS) attack.

2) Heap-based buffer overflow (CVE-ID: CVE-2020-16587)

CWE-ID: CWE-122 - Heap-based Buffer Overflow

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error in chunkOffsetReconstruction in ImfMultiPartInputFile.cpp. A remote attacker can use a specially crafted EXR file, trigger heap-based buffer overflow and cause a denial of service condition on the target system.

3) Heap-based buffer overflow (CVE-ID: CVE-2020-16589)

CWE-ID: CWE-122 - Heap-based Buffer Overflow

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error in writeTileData in ImfTiledOutputFile.cpp. A remote attacker can use a specially crafted EXR file, trigger heap-based buffer overflow and cause a denial of service condition on the target system.

Remediation

Install update from vendor's website.

References

• https://tanzu.vmware.com/security/usn-4676-1