CVE-2018-12015

Exp

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.

Published: 2018-06-07 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2018-12015 is rated High Exploit Risk (72.9/100): CVSS High severity, with high exploitation likelihood (EPSS 8.21%, 94th percentile). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2018-12015

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2018-12015

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 23.88% 8.21% -15.67%
2 2026-05-27 16.03% 23.88% +7.85%
3 2026-04-05 — 16.03% —

Full EPSS history (28 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-12015

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.0 HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 3.6 [email protected]
6.4 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 4.9 [email protected]

Weakness enumeration for CVE-2018-12015

OS Trackers for CVE-2018-12015

vendor priority summary link
alpine high CVE-2018-12015: 1 source package rows (perl); 10 state rows across 10 repos (3.10-main, 3.11-main, 3.12-main, 3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 10, open 0. https://security.alpinelinux.org/vuln/CVE-2018-12015
debian not yet assigned CVE-2018-12015 not yet assigned priority: Debian including 1 source packages (perl), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2018-12015
redhat medium — https://access.redhat.com/security/cve/CVE-2018-12015
suse low CVE-2018-12015 severity low: SUSE including 371 source package names (0.1.0:perl-base-5.26.1-7.3.1, 0.1.75:perl-base-5.26.1-7.3.1, …), 584 product×package rows across 161 product lines (Container caasp/v4/389-ds, Container caasp/v4/busybox, … (161 product lines)): Fixed 383, Known Affected 157, Known Not Affected 44. https://www.suse.com/security/cve/CVE-2018-12015/
ubuntu medium CVE-2018-12015 medium priority: Ubuntu including 1 source packages (perl), 5 status rows across 5 suites (artful, bionic, trusty, upstream, xenial): released 5. https://ubuntu.com/security/CVE-2018-12015

Affected software / configurations for CVE-2018-12015

Vendor Product Version Raw CPE
canonical ubuntu_linux 12.04 cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*
canonical ubuntu_linux 14.04 cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
canonical ubuntu_linux 16.04 cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
canonical ubuntu_linux 17.10 cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*
canonical ubuntu_linux 18.04 cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
debian debian_linux 8.0 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
debian debian_linux 9.0 cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
perl perl <= 5.26.2 cpe:2.3:a:perl:perl:*:*:*:*:*:*:*:*
archive::tar_project archive::tar <= 2.28 cpe:2.3:a:archive\:\:tar_project:archive\:\:tar:*:*:*:*:*:perl:*:*
apple mac_os_x < 10.14.4 cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
netapp data_ontap_edge — cpe:2.3:a:netapp:data_ontap_edge:-:*:*:*:*:*:*:*
netapp oncommand_workflow_automation — cpe:2.3:a:netapp:oncommand_workflow_automation:-:*:*:*:*:*:*:*
netapp snap_creator_framework — cpe:2.3:a:netapp:snap_creator_framework:-:*:*:*:*:*:*:*
netapp snapdrive — cpe:2.3:a:netapp:snapdrive:-:*:*:*:*:unix:*:*

References for CVE-2018-12015

URL Tags
http://seclists.org/fulldisclosure/2019/Mar/49 Mailing List Third Party Advisory
http://www.securityfocus.com/bid/104423 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1041048 Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2019:2097
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=900834 Exploit Mailing List Third Party Advisory
https://seclists.org/bugtraq/2019/Mar/42 Mailing List Third Party Advisory
https://security.netapp.com/advisory/ntap-20180927-0001/ Patch Third Party Advisory
https://support.apple.com/kb/HT209600 Third Party Advisory
https://usn.ubuntu.com/3684-1/ Third Party Advisory
https://usn.ubuntu.com/3684-2/ Third Party Advisory
https://www.debian.org/security/2018/dsa-4226 Third Party Advisory
https://www.oracle.com/security-alerts/cpujul2020.html
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