CVE-2021-46143

Aliases:DEBIAN-CVE-2021-46143ALPINE-CVE-2021-46143
Advisory lineage Upstream: 0 Downstream: 21
Modified
Published: 06 Jan 2022, 03:48
Last modified:05 May 2025, 16:44

Vulnerability Summary

Overall Risk (default)
medium
43/100
CVSS Score
8.1 HIGH
v3.1 (cve.org)
EPSS Score
3.79% LOW
4% probability -0.29%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected

Timeline

06 Jan 2022, 03:48
Published
Vulnerability first disclosed
05 May 2025, 16:44
Last Modified
Vulnerability information updated

Description

In doProlog in xmlparse.c in Expat (aka libexpat) before 2.4.3, an integer overflow exists for m_groupSize.

CVSS Metrics

  • v3.1•HIGH•Score: 8.1CVSS:3.1/AC:H/AV:N/A:H/C:H/I:H/PR:N/S:U/UI:N
  • v3.1•HIGH•Score: 7.8CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
  • v2.0•MEDIUM•Score: 6.8AV:N/AC:M/Au:N/C:P/I:P/A:P

EPSS Trends

Current EPSS score: 3.79%• Percentile: 89%

Techniques & Countermeasures

  • CWE-190•Integer Overflow or Wraparound

    The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

Affected Systems

  • alpine•expat

    < 2.2.10-r0 | < 2.2.10-r2 | < 2.4.3-r0 | < 2.4.3-r0 | < 2.4.3-r0 | < 2.4.3-r0 | < 2.4.3-r0 | < 2.4.3-r0 | < 2.4.3-r0 | < 2.4.3-r0 | < 2.4.3-r0 | < 2.4.3-r0 | < 2.4.3-r0

  • debian•expat

    < 2.2.10-2+deb11u1 | < 2.4.3-1 | < 2.4.3-1 | < 2.4.3-1

  • debian•libxmltok

    all | all

  • libexpat_project•libexpat

    < 2.4.3

  • netapp•active_iq_unified_manager

    na

  • netapp•clustered_data_ontap

    na

  • netapp•hci_baseboard_management_controller

    h610c | h610s | h615c

  • netapp•oncommand_workflow_automation

    na

  • netapp•solidfire_\&_hci_management_node

    na

  • siemens•sinema_remote_connect_server

    < 3.1

  • tenable•nessus

    < 8.15.3 | ≥ 10.0.0, < 10.1.1

References (10)