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TI-2020-16632 Aliases CVE-2020-27350GHSA-j2wg-wfjw-m5cq

apt integer wraparound

Priority LOW 26CWE-190Published · Updated

Key facts

Attack vector
Local
Privileges required
High
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
Low · Low · Low
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

APT had several integer overflows and underflows while parsing .deb packages, aka GHSL-2020-168 GHSL-2020-169, in files apt-pkg/contrib/extracttar.cc, apt-pkg/deb/debfile.cc, and apt-pkg/contrib/arfile.cc. This issue affects: apt 1.2.32ubuntu0 versions prior to 1.2.32ubuntu0.2; 1.6.12ubuntu0 versions prior to 1.6.12ubuntu0.2; 2.0.2ubuntu0 versions prior to 2.0.2ubuntu0.2; 2.1.10ubuntu0 versions prior to 2.1.10ubuntu0.1;

Why it matters now

EPSS 0.00378 31st percentileScored 2026-11-07
Fix Fixed apt (Canonical): 1.2.32ubuntu0.2, 1.6.12ubuntu0.2, 2.0.2ubuntu0.2 +1

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
Canonicalapt1.2.32ubuntu0 to before 1.2.32ubuntu0.2; 1.6.12ubuntu0 to before 1.6.12ubuntu0.2; 2.0.2ubuntu0 to before 2.0.2ubuntu0.2; 2.1.10ubuntu0 to before 2.1.10ubuntu0.11.2.32ubuntu0.2, 1.6.12ubuntu0.2, 2.0.2ubuntu0.2, 2.1.10ubuntu0.1Patch availableCNA
  • apt VendorCanonical Affected 1.2.32ubuntu0 to before 1.2.32ubuntu0.2; 1.6.12ubuntu0 to before 1.6.12ubuntu0.2; 2.0.2ubuntu0 to before 2.0.2ubuntu0.2; 2.1.10ubuntu0 to before 2.1.10ubuntu0.1 Fixed in 1.2.32ubuntu0.2, 1.6.12ubuntu0.2, 2.0.2ubuntu0.2, 2.1.10ubuntu0.1 Patch available CNA

CPE configurations NVD · 12

CPEVersionsRoleVendor
cpe:2.3:a:debian:advanced_package_tool:*:*:*:*:*:*:*:*1.2.32ubuntu0 to before 1.2.32ubuntu0.2VulnerableDebian
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*16.04Running onCanonical
cpe:2.3:a:debian:advanced_package_tool:*:*:*:*:*:*:*:*1.6.12ubuntu0 to before 1.6.12ubuntu0.2VulnerableDebian
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*18.04Running onCanonical
cpe:2.3:a:debian:advanced_package_tool:*:*:*:*:*:*:*:*2.0.2ubuntu0 to before 2.0.2ubuntu0.2VulnerableDebian
cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*20.04Running onCanonical
cpe:2.3:a:debian:advanced_package_tool:*:*:*:*:*:*:*:*2.1.10ubuntu0 to before 2.1.10ubuntu0.2VulnerableDebian
cpe:2.3:o:canonical:ubuntu_linux:20.10:*:*:*:*:*:*:*20.10Running onCanonical
cpe:2.3:a:debian:advanced_package_tool:*:*:*:*:*:*:*:*before 1.8.2.2VulnerableDebian
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*10.0Running onDebian
  • cpe:2.3:a:debian:advanced_package_tool:*:*:*:*:*:*:*:* Versions 1.2.32ubuntu0 to before 1.2.32ubuntu0.2 Vulnerable ·Debian
  • cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* Versions 16.04 Running on ·Canonical
  • cpe:2.3:a:debian:advanced_package_tool:*:*:*:*:*:*:*:* Versions 1.6.12ubuntu0 to before 1.6.12ubuntu0.2 Vulnerable ·Debian
  • cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* Versions 18.04 Running on ·Canonical
  • cpe:2.3:a:debian:advanced_package_tool:*:*:*:*:*:*:*:* Versions 2.0.2ubuntu0 to before 2.0.2ubuntu0.2 Vulnerable ·Debian
  • cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:* Versions 20.04 Running on ·Canonical
  • cpe:2.3:a:debian:advanced_package_tool:*:*:*:*:*:*:*:* Versions 2.1.10ubuntu0 to before 2.1.10ubuntu0.2 Vulnerable ·Debian
  • cpe:2.3:o:canonical:ubuntu_linux:20.10:*:*:*:*:*:*:* Versions 20.10 Running on ·Canonical
  • cpe:2.3:a:debian:advanced_package_tool:*:*:*:*:*:*:*:* Versions before 1.8.2.2 Vulnerable ·Debian
  • cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Running on ·Debian
Show 2 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:netapp:solidfire_baseboard_management_controller_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
cpe:2.3:h:netapp:solidfire_baseboard_management_controller:-:*:*:*:*:*:*:*not specified by NVDRunning onNetApp
  • cpe:2.3:o:netapp:solidfire_baseboard_management_controller_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:h:netapp:solidfire_baseboard_management_controller:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp

Remediation

  • Fix · CNA apt (Canonical) Fixed in 1.2.32ubuntu0.2, 1.6.12ubuntu0.2, 2.0.2ubuntu0.2, 2.1.10ubuntu0.1

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-27350
  2. 2026-10-03 Alias added: GHSA-j2wg-wfjw-m5cq

References

Advisory 3

Other 1

  • TI-2020-09349 An issue was discovered in SaltStack Salt before 2019.2.4 and 3000 before 3000.2. KEVCVSS 3.1CRITICAL 9.8
  • TI-2020-05854 smtp_mailaddr in smtp_session.c in OpenSMTPD 6.6, as used in OpenBSD 6.6 and other… KEVCVSS 3.1CRITICAL 9.8
  • TI-2020-01431 Netlogon Elevation of Privilege Vulnerability KEVCVSS 3.1CRITICAL 10.0
  • TI-2019-12627 Exim 4.92 through 4.92.2 allows remote code execution, a different vulnerability than… KEVCVSS 3.1CRITICAL 9.8
  • TI-2019-08259 Underflow in PHP-FPM can lead to RCE KEVCVSS 3.1CRITICAL 9.8
  • TI-2019-07471 OS command injection in exim KEVCVSS 3.1CRITICAL 9.8
See all 4301 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences