CyberSecBulletin
CVE-2022-23815NVD status: Modified

AMD Athlon™ 3000 Series Desktop Processors…: Out-of-bounds Write

Published Updated By the CyberSecBulletin desk

CVE-2022-23815 is a high-severity out-of-bounds write vulnerability in AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics from AMD, with a CVSS 3.1 base score of 8.2 out of 10. It can be exploited with local access to the system by an attacker with administrator privileges, without any action from a user. Affected AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics versions: various. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.16% chance of exploitation within 30 days, which is low compared with other CVEs.

Next patch cycle

High severity with no evidence of exploitation so far.

What to do

  1. Update Athlon Silver 3050u Firmware to picassopi-fp5_1.0.0.e or a later version.
  2. Update Athlon Gold 3150u Firmware to picassopi-fp5_1.0.0.e or a later version.
  3. Update Ryzen 7 3780u Firmware to picassopi-fp5_1.0.0.e or a later version.
  4. Read the advisory on amd.com for workarounds and exact fixed builds.

Affected products and versions

VendorProductAffected versionsFixed in
AMDAMD Athlon™ 3000 Series Desktop Processors with Radeon™ GraphicsvariousNot stated
AMDAMD Athlon™ 3000 Series Mobile Processors with Radeon™ GraphicsNot specified in the recordNot stated
AMDAMD Ryzen™ 3000 Series Mobile Processor with Radeon™ GraphicsNot specified in the recordNot stated
AMDAMD RyzenTM Embedded R1000Not specified in the recordNot stated
AMDAMD RyzenTM Embedded R2000Not specified in the recordNot stated
AMDAMD RyzenTM Embedded V1000Not specified in the recordNot stated
AMDathlon_3000gvariousNot stated
AMDryzen_embedded_r1000Not specified in the recordNot stated
AMDryzen_embedded_r2000Not specified in the recordNot stated
AMDryzen_embedded_v1000Not specified in the recordNot stated
AMDAthlon Silver 3050u Firmwarebefore picassopi-fp5_1.0.0.epicassopi-fp5_1.0.0.e
AMDAthlon Gold 3150u Firmwarebefore picassopi-fp5_1.0.0.epicassopi-fp5_1.0.0.e
AMDRyzen 7 3780u Firmwarebefore picassopi-fp5_1.0.0.epicassopi-fp5_1.0.0.e
AMDRyzen 7 3750h Firmwarebefore picassopi-fp5_1.0.0.epicassopi-fp5_1.0.0.e
AMDRyzen 7 Pro 3700u Firmwarebefore picassopi-fp5_1.0.0.epicassopi-fp5_1.0.0.e
AMDRyzen 7 3700u Firmwarebefore picassopi-fp5_1.0.0.epicassopi-fp5_1.0.0.e
AMDRyzen 5 3580u Firmwarebefore picassopi-fp5_1.0.0.epicassopi-fp5_1.0.0.e
AMDRyzen 5 3550h Firmwarebefore picassopi-fp5_1.0.0.epicassopi-fp5_1.0.0.e
AMDRyzen 5 3500u Firmwarebefore picassopi-fp5_1.0.0.epicassopi-fp5_1.0.0.e
AMDRyzen 3 3300u Firmwarebefore picassopi-fp5_1.0.0.epicassopi-fp5_1.0.0.e
AMDRyzen 3 3250u Firmwarebefore picassopi-fp5_1.0.0.epicassopi-fp5_1.0.0.e
AMDRyzen 3 3200u Firmwarebefore picassopi-fp5_1.0.0.epicassopi-fp5_1.0.0.e
AMDAthlon Gold Pro 3150g FirmwareNot specified in the recordNot stated
AMDAthlon Gold 3150g FirmwareNot specified in the recordNot stated
AMDAthlon Gold Pro 3150ge FirmwareNot specified in the recordNot stated

Version data comes from the organisation that assigned the CVE; 1 further products are omitted here. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Attack vector
LocalThe attacker needs local access or must trick a user into running something.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Privileges required
HighAdministrator-level access is required first.
User interaction
NoneNo action by a victim is required.
Scope
ChangedThe attack can reach beyond the vulnerable component into other systems.
Confidentiality
HighAll data handled by the component can be read.
Integrity
HighData or code can be modified at will.
Availability
HighThe component can be taken down completely.

Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H. Scored by NVD.

Scoring systemScoreSeverityScored by
CVSS 3.17.5HighCNA (amd.com)
CVSS 3.18.2HighNVD

Official description

Improper bounds checking in APCB firmware may allow an attacker to perform an out of bounds write, corrupting the APCB entry, potentially leading to arbitrary code execution.

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

How developers prevent this class of flaw

  • Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid. For example, many languages that perform their own memory management, such as Java and Perl, are not subject to buffer overflows. Other languages, such as Ada and C#, typically provide overflow protection, but the protection can be disabled by the programmer. Be wary that a language's interface to native code may still be subject to overflows, even if the language itself is theoretically safe.
  • Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid. Examples include the Safe C String Library (SafeStr) by Messier and Viega, and the Strsafe.h library from Microsoft. These libraries provide safer versions of overflow-prone string-handling functions.
  • Use automatic buffer overflow detection mechanisms that are offered by certain compilers or compiler extensions. Examples include: the Microsoft Visual Studio /GS flag, Fedora/Red Hat FORTIFY_SOURCE GCC flag, StackGuard, and ProPolice, which provide various mechanisms including canary-based detection and range/index checking. D3-SFCV (Stack Frame Canary Validation) from D3FEND discusses canary-based detection in detail.

More Out-of-bounds Write vulnerabilities (CWE-787)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
  3. Record last changed materially (score, affected products, status or references).

References

Other vulnerabilities in AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics

All AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics vulnerabilities

Recent Out-of-bounds Write vulnerabilities

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