CVE intelligence and bounded remediation

CVE-2018-10897 — Rpm Yum-Utils security vulnerability

High CVSS 9.3

A directory traversal issue was found in reposync, a part of yum-utils, where reposync fails to sanitize paths in remote repository configuration files. If an attacker controls a repository, they may be able to copy files outside of the destination directory on the targeted system via path traversal. If reposync is running with heightened privileges on a targeted system, this flaw could potentially result in system compromise via the overwriting of critical system files. Version 1.1.31 and older are believed to be affected.

Severity
High
CVSS
9.3 (2.0)
Published
2018-08-01
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-59, CWE-22

Affected products

  • rpm / yum-utils
  • redhat / virtualization / 4.0
  • redhat / enterprise_linux_desktop / 6.0
  • redhat / enterprise_linux_desktop / 7.0
  • redhat / enterprise_linux_server / 6.0
  • redhat / enterprise_linux_server / 7.0

Showing 6 representative product identities from 8 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Path traversal, unsafe upload, and file handling

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Trace untrusted filenames, archive entries, URLs, and path segments into read, write, include, extraction, and upload operations.
  • Identify filesystem roots, mount permissions, symbolic-link behavior, archive handling, and whether uploaded content is web-accessible or executable.
  • Review canonicalization and containment checks across supported operating systems and storage backends.

Remediate safely

  • Generate server-side storage identifiers and resolve paths beneath a fixed root using filesystem-aware containment checks.
  • Reject absolute, parent-relative, alternate-separator, device, link, and archive entries that escape the intended root.
  • Store uploads outside executable or served paths, validate type and size, and use private atomic temporary files.

Authoritative sources

Complete CVE record and remediation plan

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