Vulnerability Monitor

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CVE-2018-12015

In Perl through 5.26.2, the Archive::Tar module allows remote attackers to bypass a directory-traversal protection mechanism, and overwrite arbitrary files, via an archive file containing a symlink and a regular file with the same name.

Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.5, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts integrity (unauthorized modifications), for affected systems. Impacting 9 products from canonical, from debian, from perl 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

2018-06-07T13:29:00.240

Last Modified

2024-11-21T03:44:24.850

Status

Modified

Source

[email protected]

Severity

CVSSv3.0: 7.5 (HIGH)

CVSSv2 Vector

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

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

4.9

Weaknesses

Type: Primary
CWE-59

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
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	canonical	ubuntu_linux	18.04	Yes
Operating System	debian	debian_linux	8.0	Yes
Operating System	debian	debian_linux	9.0	Yes
Application	perl	perl	≤ 5.26.2	Yes
Application	archive\	\	≤ 2.28	Yes
Operating System	apple	mac_os_x	< 10.14.4	Yes
Application	netapp	data_ontap_edge	-	Yes
Application	netapp	oncommand_workflow_automation	-	Yes
Application	netapp	snap_creator_framework	-	Yes
Application	netapp	snapdrive	-	Yes

References

http://seclists.org/fulldisclosure/2019/Mar/49 Mailing List, Third Party Advisory ([email protected])
http://www.securityfocus.com/bid/104423 Third Party Advisory, VDB Entry ([email protected])
http://www.securitytracker.com/id/1041048 Third Party Advisory, VDB Entry ([email protected])
https://access.redhat.com/errata/RHSA-2019:2097 ([email protected])
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=900834 Exploit, Mailing List, Third Party Advisory ([email protected])
https://seclists.org/bugtraq/2019/Mar/42 Mailing List, Third Party Advisory ([email protected])
https://security.netapp.com/advisory/ntap-20180927-0001/ Patch, Third Party Advisory ([email protected])
https://support.apple.com/kb/HT209600 Third Party Advisory ([email protected])
https://usn.ubuntu.com/3684-1/ Third Party Advisory ([email protected])
https://usn.ubuntu.com/3684-2/ Third Party Advisory ([email protected])
https://www.debian.org/security/2018/dsa-4226 Third Party Advisory ([email protected])
https://www.oracle.com/security-alerts/cpujul2020.html ([email protected])
http://seclists.org/fulldisclosure/2019/Mar/49 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/104423 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id/1041048 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/errata/RHSA-2019:2097 (af854a3a-2127-422b-91ae-364da2661108)
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=900834 Exploit, Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://seclists.org/bugtraq/2019/Mar/42 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.netapp.com/advisory/ntap-20180927-0001/ Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://support.apple.com/kb/HT209600 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://usn.ubuntu.com/3684-1/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://usn.ubuntu.com/3684-2/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.debian.org/security/2018/dsa-4226 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.oracle.com/security-alerts/cpujul2020.html (af854a3a-2127-422b-91ae-364da2661108)

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 canonical'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.