Branch: refs/heads/master
  Home:   https://github.com/tianocore/edk2
  Commit: 1c440a5eceedc64e892877eeac0f1a4938f5abbb
      
https://github.com/tianocore/edk2/commit/1c440a5eceedc64e892877eeac0f1a4938f5abbb
  Author: Doug Flick <[email protected]>
  Date:   2024-02-14 (Wed, 14 Feb 2024)

  Changed paths:
    M NetworkPkg/Dhcp6Dxe/Dhcp6Io.c
    M NetworkPkg/Dhcp6Dxe/Dhcp6Io.h

  Log Message:
  -----------
  NetworkPkg: Dhcp6Dxe: SECURITY PATCH CVE-2023-45229 Related Patch

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4673
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4534

This was not part of the Quarkslab bugs however the same pattern
as CVE-2023-45229 exists in Dhcp6UpdateIaInfo.

This patch replaces the code in question with the safe function
created to patch CVE-2023-45229

>
>   if (EFI_ERROR (
>        Dhcp6SeekInnerOptionSafe (
>          Instance->Config->IaDescriptor.Type,
>          Option,
>          OptionLen,
>          &IaInnerOpt,
>          &IaInnerLen
>          )
>        ))
>  {
>    return EFI_DEVICE_ERROR;
>  }
>

Additionally corrects incorrect usage of macro to read the status

> - StsCode = NTOHS (ReadUnaligned16 ((UINT16 *)DHCP6_OFFSET_OF_OPT_LEN
 (Option)));
> + StsCode = NTOHS (ReadUnaligned16 ((UINT16 *)
DHCP6_OFFSET_OF_STATUS_CODE (Option));

Cc: Saloni Kasbekar <[email protected]>
Cc: Zachary Clark-williams <[email protected]>
Signed-off-by: Doug Flick [MSFT] <[email protected]>
Reviewed-by: Saloni Kasbekar <[email protected]>
Reviewed-by: Leif Lindholm <[email protected]>


  Commit: af3fad99d6088881562e50149f414f76a5be0140
      
https://github.com/tianocore/edk2/commit/af3fad99d6088881562e50149f414f76a5be0140
  Author: Doug Flick <[email protected]>
  Date:   2024-02-14 (Wed, 14 Feb 2024)

  Changed paths:
    M NetworkPkg/Dhcp6Dxe/Dhcp6Utility.c

  Log Message:
  -----------
  NetworkPkg: Dhcp6Dxe: Removes duplicate check and replaces with macro

Removes duplicate check after merge

>
>  //
>  // Verify the PacketCursor is within the packet
>  //
>  if (  (*PacketCursor < Packet->Dhcp6.Option)
>     || (*PacketCursor >= Packet->Dhcp6.Option + (Packet->Size -
sizeof (EFI_DHCP6_HEADER))))
>  {
>    return EFI_INVALID_PARAMETER;
>  }
>

Converts the check to a macro and replaces all instances of the check
with the macro

Cc: Saloni Kasbekar <[email protected]>
Cc: Zachary Clark-williams <[email protected]>
Signed-off-by: Doug Flick [MSFT] <[email protected]>
Reviewed-by: Saloni Kasbekar <[email protected]>
Reviewed-by: Leif Lindholm <[email protected]>


  Commit: 75deaf5c3c0d164c61653258c331151241bb69d8
      
https://github.com/tianocore/edk2/commit/75deaf5c3c0d164c61653258c331151241bb69d8
  Author: Doug Flick <[email protected]>
  Date:   2024-02-14 (Wed, 14 Feb 2024)

  Changed paths:
    M NetworkPkg/Dhcp6Dxe/Dhcp6Utility.c

  Log Message:
  -----------
  NetworkPkg: Dhcp6Dxe: Packet-Length is not updated before appending

In order for Dhcp6AppendIaAddrOption (..) to safely append the IA
Address option, the Packet-Length field must be updated before appending
the option.

Cc: Saloni Kasbekar <[email protected]>
Cc: Zachary Clark-williams <[email protected]>
Signed-off-by: Doug Flick [MSFT] <[email protected]>
Reviewed-by: Saloni Kasbekar <[email protected]>
Reviewed-by: Leif Lindholm <[email protected]>


  Commit: 5fd3078a2e08f607dc86a16c1b184b6e30a34a49
      
https://github.com/tianocore/edk2/commit/5fd3078a2e08f607dc86a16c1b184b6e30a34a49
  Author: Doug Flick <[email protected]>
  Date:   2024-02-14 (Wed, 14 Feb 2024)

  Changed paths:
    M NetworkPkg/SecurityFixes.yaml

  Log Message:
  -----------
  NetworkPkg: : Updating SecurityFixes.yaml

This captures the related security change for Dhcp6Dxe that is related
to CVE-2023-45229

Cc: Saloni Kasbekar <[email protected]>
Cc: Zachary Clark-williams <[email protected]>
Signed-off-by: Doug Flick [MSFT] <[email protected]>
Reviewed-by: Saloni Kasbekar <[email protected]>
Reviewed-by: Leif Lindholm <[email protected]>


Compare: https://github.com/tianocore/edk2/compare/a1c426e8440b...5fd3078a2e08


_______________________________________________
edk2-commits mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/edk2-commits

Reply via email to