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CVE-2018-1336

HIGH

7.5

CVSS Score

Published: August 2, 2018 at 02:00 PM UTC

Updated: June 17, 2026 at 01:51 AM UTC

9 products affected across 4 vendorsDebian LinuxUbuntu LinuxEnterprise Linux Desktop

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Severity

HIGH7.5

Exploit prediction

EPSS 20%

SSVC

No known exploit

Description

An improper handing of overflow in the UTF-8 decoder with supplementary characters can lead to an infinite loop in the decoder causing a Denial of Service. Versions Affected: Apache Tomcat 9.0.0.M9 to 9.0.7, 8.5.0 to 8.5.30, 8.0.0.RC1 to 8.0.51, and 7.0.28 to 7.0.86.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Tomcat · Apache

95%

7.0.28 ≤ v ≤ 7.0.868.0.0 ≤ v ≤ 8.0.518.0.0.RC1 ≤ v ≤ 8.0.518.5.0 ≤ v ≤ 8.5.309.0.0.M9 ≤ v ≤ 9.0.79.0.1 ≤ v ≤ 9.0.78.0.0 rc1 8.0.0 rc10 8.0.0 rc2 8.0.0 rc3 8.0.0 rc4 8.0.0 rc5 8.0.0 rc6 8.0.0 rc7 8.0.0 rc8 8.0.0 rc9 9.0.0 milestone10 9.0.0 milestone11 9.0.0 milestone12 9.0.0 milestone13 9.0.0 milestone14 9.0.0 milestone15 9.0.0 milestone16 9.0.0 milestone17 9.0.0 milestone18 9.0.0 milestone19 9.0.0 milestone20 9.0.0 milestone21 9.0.0 milestone22 9.0.0 milestone23 9.0.0 milestone24 9.0.0 milestone25 9.0.0 milestone26 9.0.0 milestone27 9.0.0 milestone9

Ubuntu Linux · Canonicalrubygems

95%

Debian Linux · Debiandrupal

95%

Enterprise Linux Desktop · Red Hatrubygems

95%

Enterprise Linux Server · Red Hatrubygems

95%

Enterprise Linux Workstation · Red Hatrubygems

95%

JBoss Enterprise Application Platform · Red Hatrpm

95%

JBoss Enterprise Web Server · Red Hat

95%

redhat-enterprise-linux (environment)

Enterprise Linux · Red Hatrpmdevice

80%

All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (38)

Mailing Listx_refsource_MLISTVendor Advisory

Source: [email protected]

http://mail-archives.us.apache.org/mod_mbox/www-announce/201807.mbox/%3C20180722090435.GA60759%40minotaur.apache.org%3E

VDB Entryx_refsource_BIDThird Party Advisory

Source: [email protected]

http://www.securityfocus.com/bid/104898

VDB Entryx_refsource_SECTRACKThird Party Advisory

Source: [email protected]

http://www.securitytracker.com/id/1041375

Vendor Advisoryx_refsource_REDHATThird Party Advisory

Source: [email protected]

https://access.redhat.com/errata/RHEA-2018:2188

Vendor Advisoryx_refsource_REDHATThird Party Advisory

Source: [email protected]

https://access.redhat.com/errata/RHEA-2018:2189

Vendor Advisoryx_refsource_REDHATThird Party Advisory

Source: [email protected]

https://access.redhat.com/errata/RHSA-2018:2700

Vendor Advisoryx_refsource_REDHATThird Party Advisory

Source: [email protected]

https://access.redhat.com/errata/RHSA-2018:2701

Vendor Advisoryx_refsource_REDHATThird Party Advisory

Source: [email protected]

https://access.redhat.com/errata/RHSA-2018:2740

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGH[email protected]

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: NONE
Integrity: NONE
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-835

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