01 Record

CVE-2018-6913

Heap-based buffer overflow in the pack function in Perl before 5.26.2 allows context-dependent attackers to execute arbitrary code via a large item count.

UnratedPUBLISHEDCNA: mitre

CNA base scoreUnratedNo CNA CVSS vector

View raw JSON

02 Description

Heap-based buffer overflow in the pack function in Perl before 5.26.2 allows context-dependent attackers to execute arbitrary code via a large item count.

03 Exploitation and scoring

Exploitation: Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision: Not assessed by CISA
EPSS probability: 10.66% probability of exploitation activity in the next 30 days.
EPSS percentile: Equal to or higher than the score of 95.6% of scored records. A rank, not a probability.
NVD base score: 9.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD analysis status: Modified. NVD last modified this record on 2026-06-17.
Red Hat severity: Low. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2018-04-17 20:00Z8 YR AGO

Last updated

2024-08-05 06:17Z2 YR AGO

Reserved

2018-02-11

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

CWE-787Out-of-bounds WriteBase
CWE-122Heap-based Buffer OverflowVariant

Data version

5.1

Document digest

e5511980230715be2f2fd8084b5a63a3d1973acba8e72a3660efbd3de981bdb6

05 Affected products

VendorProductVersionsPlatforms

canonicalubuntu_linuxNot specified—

debiandebian_linuxNot specified—

perlperlNot specified—

redhatenterprise_linuxNot specified—

redhathummingbirdNot specified—

redhatrhel_software_collectionsNot specified—

06 References

usn.ubuntu.comUSN-3625-2https://usn.ubuntu.com/3625-2/vendor-advisoryx_refsource_UBUNTU
www.securityfocus.com103953http://www.securityfocus.com/bid/103953vdb-entryx_refsource_BID
lists.debian.org[debian-lts-announce] 20180414 [SECURITY] [DLA 1345-1] perl security updatehttps://lists.debian.org/debian-lts-announce/2018/04/msg00009.htmlmailing-listx_refsource_MLIST
www.securitytracker.com1040681http://www.securitytracker.com/id/1040681vdb-entryx_refsource_SECTRACK
usn.ubuntu.comUSN-3625-1https://usn.ubuntu.com/3625-1/vendor-advisoryx_refsource_UBUNTU
www.debian.orgDSA-4172https://www.debian.org/security/2018/dsa-4172vendor-advisoryx_refsource_DEBIAN
security.gentoo.orgGLSA-201909-01https://security.gentoo.org/glsa/201909-01vendor-advisoryx_refsource_GENTOO
www.oracle.comhttps://www.oracle.com/security-alerts/cpujul2020.htmlx_refsource_MISC
rt.perl.orghttps://rt.perl.org/Public/Bug/Display.html?id=131844x_refsource_CONFIRM

07 Fixed in

Debian 12

perl
Fixed in 5.26.1-6

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

perl
Fixed in 5.26.1-6

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

perl
Fixed in 5.26.1-6

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 14.04 LTS

perl
Fixed in 5.18.2-2ubuntu1.4

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 16.04 LTS

perl
Fixed in 5.22.1-9ubuntu0.3

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.