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CVE-2018-1000156


GNU Patch version 2.7.6 contains an input validation vulnerability when processing patch files, specifically the EDITOR_PROGRAM invocation (using ed) can result in code execution. This attack appear to be exploitable via a patch file processed via the patch utility. This is similar to FreeBSD's CVE-2015-1418 however although they share a common ancestry the code bases have diverged over time.


Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.8, requiring local system access to exploit with relatively low complexity though user interaction is required and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 9 products from gnu, from canonical, from debian and 6 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2018, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.


Published

2018-04-06T13:29:00.377

Last Modified

2025-04-14T20:15:16.763

Status

Modified

Source

[email protected]

Severity

CVSSv3.0: 7.8 (HIGH)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:P/I:P/A:P

  • Access Vector: NETWORK
  • Access Complexity: MEDIUM
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: PARTIAL
  • Availability Impact: PARTIAL
Exploitability Score

8.6

Impact Score

6.4

Weaknesses
  • Type: Primary
    CWE-20

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application gnu patch 2.7.6 Yes
Operating System canonical ubuntu_linux 12.04 Yes
Operating System canonical ubuntu_linux 14.04 Yes
Operating System canonical ubuntu_linux 16.04 Yes
Operating System canonical ubuntu_linux 17.10 Yes
Operating System debian debian_linux 7.0 Yes
Operating System redhat enterprise_linux_desktop 6.0 Yes
Operating System redhat enterprise_linux_desktop 7.0 Yes
Operating System redhat enterprise_linux_server 6.0 Yes
Operating System redhat enterprise_linux_server 7.0 Yes
Operating System redhat enterprise_linux_server_aus 6.4 Yes
Operating System redhat enterprise_linux_server_aus 6.5 Yes
Operating System redhat enterprise_linux_server_aus 6.6 Yes
Operating System redhat enterprise_linux_server_aus 7.2 Yes
Operating System redhat enterprise_linux_server_aus 7.3 Yes
Operating System redhat enterprise_linux_server_aus 7.4 Yes
Operating System redhat enterprise_linux_server_aus 7.6 Yes
Operating System redhat enterprise_linux_server_eus 6.7 Yes
Operating System redhat enterprise_linux_server_eus 7.3 Yes
Operating System redhat enterprise_linux_server_eus 7.4 Yes
Operating System redhat enterprise_linux_server_eus 7.5 Yes
Operating System redhat enterprise_linux_server_eus 7.6 Yes
Operating System redhat enterprise_linux_server_tus 6.6 Yes
Operating System redhat enterprise_linux_server_tus 7.2 Yes
Operating System redhat enterprise_linux_server_tus 7.3 Yes
Operating System redhat enterprise_linux_server_tus 7.4 Yes
Operating System redhat enterprise_linux_server_tus 7.6 Yes
Operating System redhat enterprise_linux_workstation 6.0 Yes
Operating System redhat enterprise_linux_workstation 7.0 Yes

References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For gnu's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.