Integer underflow in grub_net_recv_ip4_packets

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Summary

CVECVE-2022-28733
StatePUBLISHED
Assignercanonical
Source PriorityCVE Program / NVD first with legacy fallback
Published2023-07-20 01:15:10 UTC
Updated2026-11-10 12:10:00 UTC
DescriptionInteger underflow in grub_net_recv_ip4_packets; A malicious crafted IP packet can lead to an integer underflow in grub_net_recv_ip4_packets() function on rsm->total_len value. Under certain circumstances the total_len value may end up wrapping around to a small integer number which will be used in memory allocation. If the attack succeeds in such way, subsequent operations can write past the end of the buffer.

Risk And Classification

Primary CVSS: v3.1 8.1 HIGH from [email protected]

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Problem Types: CWE-191 | CWE-191 CWE-191

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary8.1HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1[email protected]Secondary8.1HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1CNACVSS8.1HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Gnu Grub2 All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA GNU Project GNU GRUB affected 2.06-3 semver Linux

References

ReferenceSourceLinkTags
CVE - CVE-2022-28733 af854a3a-2127-422b-91ae-364da2661108 cve.mitre.org Third Party Advisory
July 2023 Grub Vulnerabilities in NetApp Products | NetApp Product Security af854a3a-2127-422b-91ae-364da2661108 security.netapp.com
oss-security - [SECURITY PATCH 00/30] Multiple GRUB2 vulnerabilities - 2022/06/07 round af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Mailing List, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Daniel Axtens (en)

Legacy QID Mappings

  • 159883 Oracle Enterprise Linux Security Update for grub2 (ELSA-2022-9471)
  • 159884 Oracle Enterprise Linux Security Update for grub2 (ELSA-2022-9469)
  • 159943 Oracle Enterprise Linux Security Update for grub2 (ELSA-2022-5099)
  • 159967 Oracle Enterprise Linux Security Update for grub2, mokutil, shim, and shim-unsigned-x64 (ELSA-2022-5095)
  • 159985 Oracle Enterprise Linux Security Update for grub2 (ELSA-2022-9596)
  • 159986 Oracle Enterprise Linux Security Update for grub2 (ELSA-2022-9595)
  • 161027 Oracle Enterprise Linux Security Update for grub2 (ELSA-2023-12952)
  • 181010 Debian Security Update for grub2 (CVE-2022-28733)
  • 240473 Red Hat Update for grub2, mokutil, shim, and shim-unsigned-x64 (RHSA-2022:5100)
  • 240474 Red Hat Update for grub2, mokutil, shim, and shim-unsigned-x64 (RHSA-2022:5099)
  • 240476 Red Hat Update for grub2, mokutil, shim, and shim-unsigned-x64 (RHSA-2022:5096)
  • 240477 Red Hat Update for grub2, mokutil, shim, and shim-unsigned-x64 (RHSA-2022:5095)
  • 241002 Red Hat Update for grub2 (RHSA-2022:8900)
  • 282811 Fedora Security Update for grub2 (FEDORA-2022-27932fdd06)
  • 282866 Fedora Security Update for grub2 (FEDORA-2022-9b4f9af4ce)
  • 354332 Amazon Linux Security Advisory for grub2 : ALAS2022-2022-109
  • 354535 Amazon Linux Security Advisory for grub2 : ALAS-2022-109
  • 355137 Amazon Linux Security Advisory for grub2 : ALAS2023-2023-020
  • 355617 Amazon Linux Security Advisory for grub2 : ALAS2-2023-2146
  • 377130 Alibaba Cloud Linux Security Update for grub2, mokutil, shim, and shim-unsigned-x64 (ALINUX3-SA-2022:0134)
  • 377622 Alibaba Cloud Linux Security Update for grub2, mokutil, shim, and shim-unsigned-x64 (ALINUX3-SA-2022:0164)
  • 672021 EulerOS Security Update for grub2 (EulerOS-SA-2022-2242)
  • 672026 EulerOS Security Update for grub2 (EulerOS-SA-2022-2221)
  • 672031 EulerOS Security Update for grub2 (EulerOS-SA-2022-2255)
  • 672109 EulerOS Security Update for grub2 (EulerOS-SA-2022-2318)
  • 672131 EulerOS Security Update for grub2 (EulerOS-SA-2022-2289)
  • 710619 Gentoo Linux GRUB Multiple Vulnerabilities (GLSA 202209-12)
  • 752214 SUSE Enterprise Linux Security Update for grub2 (SUSE-SU-2022:2037-1)
  • 752215 SUSE Enterprise Linux Security Update for grub2 (SUSE-SU-2022:2041-1)
  • 752216 SUSE Enterprise Linux Security Update for grub2 (SUSE-SU-2022:2036-1)
  • 752217 SUSE Enterprise Linux Security Update for grub2 (SUSE-SU-2022:2035-1)
  • 752218 SUSE Enterprise Linux Security Update for grub2 (SUSE-SU-2022:2038-1)
  • 752221 SUSE Enterprise Linux Security Update for grub2 (SUSE-SU-2022:2064-1)
  • 752229 SUSE Enterprise Linux Security Update for grub2 (SUSE-SU-2022:2074-1)
  • 907592 Common Base Linux Mariner (CBL-Mariner) Security Update for grub2 (27553-1)
  • 940639 AlmaLinux Security Update for grub2, (ALSA-2022:5095)
  • 940640 AlmaLinux Security Update for grub2, (ALSA-2022:5099)
  • 960155 Rocky Linux Security Update for grub2, (RLSA-2022:5095)
  • 960538 Rocky Linux Security Update for grub2, (RLSA-2022:5099)

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