CVE-2018-18312: canonical ubuntu_linux
Vulnerability summary
CVE-2018-18312 is a critical (CVSS 9.8) vulnerability in canonical ubuntu_linux. EPSS estimates a 12.77% chance of exploitation in the next 30 days, higher than 96.2% of scored vulnerabilities. 1 public exploit is recorded.
Public exploit (reference, Date unknown)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 7 · Related 3Timeline
- 05-12-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
Perl before 5.26.3 and 5.28.0 before 5.28.1 has a buffer overflow via a crafted regular expression that triggers invalid write operations.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · AlpineEcosystem advisory · calculated9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
12.77%
Chance of exploitation in the next 30 days
Percentile
96%
Versus all other CVEs
30-day change
Increase +0.67 pp
From 12.09% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
1 foundExploit Reference (rt.perl.org)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Netapp4 products
- e-series_santricity_os_controller≥ 11.0, ≤ 11.40
- snap_creator_frameworkna
- snapcenterna
- snapdrivena
Debian2 products
- perl< 5.28.1-1
- debian_linuxEOL9.0
Alpine1 product
- perl≥ 5.28.0, < 5.26.3-r0 | ≥ 5.28.0, < 5.24.4-r2
Canonical1 product
- ubuntu_linuxEOL14.04 | 16.04 | 18.04 | 18.10
Perl1 product
- perl< 5.26.3 | ≥ 5.28.0, < 5.28.1
Redhat1 product
- enterprise_linuxEOL6.0 | 7.0 | 7.4 | 7.5 | 7.6
Ubuntu1 product
- perl< 5.22.1-9ubuntu0.6 | < 5.26.1-6ubuntu0.3
7 vendors · 11 products
References
19 links
- www.oracle.com/security-alerts/cpujul2020.htmlX Refsource MISC