9.8

CVE-2018-6913: canonical ubuntu_linux Out-of-bounds Write

Modified
AliasesALPINE-CVE-2018-6913MGASA-2018-0247UBUNTU-CVE-2018-6913
Published 17-04-2018Last modified 05-08-2024

Vulnerability summary

CVE-2018-6913 is a critical (CVSS 9.8) Out-of-bounds Write vulnerability in canonical ubuntu_linux. EPSS estimates a 10.67% chance of exploitation in the next 30 days, higher than 95.8% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 9.8 (NVD); no exploitation reported by the 5 checked sources; EPSS 11% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
9.8/10
010
Critical · v3.0 (NVD)
EPSS score
10.67%
0%100%
Medium · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 10 · Related 8
MGASA-2018-0241RHSA-2026:6206SUSE-SU-2018:0976-1SUSE-SU-2018:1074-1SUSE-SU-2018:1972-1SUSE-SU-2018:1972-2

Timeline

  1. 17-04-2018
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

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.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

10.67%

Chance of exploitation in the next 30 days

Percentile

96%

Versus all other CVEs

30-day change

No change 0.00 pp

From 10.67% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Debian2 products
  • perl< 5.20.2-3+deb8u10 | < 5.24.1-3+deb9u3 | < 5.14.2-21+deb7u6 | < 5.26.1-6
  • debian_linuxEOL7.0 | 8.0 | 9.0
Alpine1 product
  • perl< 5.26.2-r0 | < 5.24.4-r0
Canonical1 product
Mageia1 product
  • perl< 5.20.1-8.8.mga5
Perl1 product
Ubuntu1 product
  • perl< 5.18.2-2ubuntu1.4 | < 5.22.1-9ubuntu0.3

6 vendors · 7 products

References

17 links
Show all 17 references