PT-2021-4745 · Tianocore+8 · Tianocore Edk2+8

Published 2014-10-06 · Updated 2025-06-05 · CVE-2021-38575

Positive Technologies (AI Summary)

CVSS v3.1

8.1

High

Base vector

AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions NetworkPkg/IScsiDxe (affected versions not specified) Tianocore edk2 (affected versions not specified)

Description The issue is related to remotely exploitable buffer overflows in the NetworkPkg/IScsiDxe and the IScsiHexToBin function of the Tianocore edk2 library. This can allow a remote attacker to disclose protected information, impact data integrity, or cause a denial of service.

Recommendations For NetworkPkg/IScsiDxe, consider disabling the vulnerable component until a patch is available. For Tianocore edk2, restrict access to the IScsiHexToBin function to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Buffer Overflow

Weakness Enumeration

CWE-119

CWE-124

Related Identifiers

ALT-PU-2014-2246

BDU:2021-05454

CESA-2021_3066

CVE-2021-38575

DLA-4207-1

OESA-2021-1358

RHSA-2021:3066

RHSA-2021:3172

RHSA-2021:3235

RHSA-2021:3369

RHSA-2021_3066

RLSA-2021:3066

USN-5088-1

USN-7060-1

Affected Products

Alt Linux

Astra Linux

Centos

Debian

Linuxmint

Red Hat

Rocky Linux

Tianocore Edk2

Ubuntu

References · 38

• 🔥 https://bugzilla.tianocore.org/show_bug.cgi?id=3356 · Exploit
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-38575 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-28211 · Vendor Advisory
• https://osv.dev/vulnerability/DLA-4207-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-3712 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-38575 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2021-38575 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-5088-1 · Vendor Advisory
• https://errata.rockylinux.org/RLSA-2021:3066 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-28210 · Vendor Advisory
• https://osv.dev/vulnerability/USN-7060-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-38575 · Security Note
• https://ubuntu.com/security/CVE-2022-1292 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-38575 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2021-3066.html · Vendor Advisory