A Directory Traversal issue was discovered in RubyGems 2.7.6 and later through 3.0.2. Before making new directories or touching files (which now include path-checking code for symlinks), it would delete the target destination. If that destination was hidden behind a symlink, a malicious gem could delete arbitrary files on the user's machine, presuming the attacker could guess at paths. Given how frequently gem is run as sudo, and how predictable paths are on modern systems (/tmp, /usr, etc.), this could likely lead to data loss or an unusable system.
Metrics
Affected Vendors & Products
Advisories
Source | ID | Title |
---|---|---|
![]() |
DLA-1735-1 | ruby2.1 security update |
![]() |
DLA-2330-1 | jruby security update |
![]() |
DSA-4433-1 | ruby2.3 security update |
![]() |
EUVD-2019-0506 | A Directory Traversal issue was discovered in RubyGems 2.7.6 and later through 3.0.2. Before making new directories or touching files (which now include path-checking code for symlinks), it would delete the target destination. If that destination was hidden behind a symlink, a malicious gem could delete arbitrary files on the user's machine, presuming the attacker could guess at paths. Given how frequently gem is run as sudo, and how predictable paths are on modern systems (/tmp, /usr, etc.), this could likely lead to data loss or an unusable system. |
![]() |
GHSA-5x32-c9mf-49cc | RubyGems Delete directory using symlink when decompressing tar |
![]() |
USN-3945-1 | Ruby vulnerabilities |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
No history.

Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2024-08-04T21:17:31.038Z
Reserved: 2019-02-13T00:00:00
Link: CVE-2019-8320

No data.

Status : Modified
Published: 2019-06-06T15:29:01.420
Modified: 2024-11-21T04:49:41.117
Link: CVE-2019-8320


No data.