What is the CVSS score of CVE-2018-15911?

CVE-2018-15911 has a CVSS 3.0 base score of 7.8 (High). CVSS vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. EPSS exploitation probability: 3.0%.

Is there a patch available for CVE-2018-15911?

Yes, a patch is available for CVE-2018-15911. Update the affected software to the latest version immediately.

Ghostscript CVE-2018-15911

HIGH

Use of Uninitialized Resource (CWE-908)

2018-08-28 cve@mitre.org

Denial Of Service Debian Red Hat Canonical Debian Linux Enterprise Linux Desktop Enterprise Linux Server Enterprise Linux Server Aus Enterprise Linux Server Tus Enterprise Linux Workstation Ubuntu Linux Ghostscript Enterprise Linux Server Eus Gpl Ghostscript Pulse Connect Secure Artifex Pulsesecure

7.8

CVSS 3.0 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-908 ASVS 5.0 V15 - Secure Coding and Architecture Variable initialization
Impact	CVSS score of 7.8 (HIGH). Attack characteristics: local attack vector, low complexity, no privileges required, user interaction required.
Exploit ScenarioDerived	A local attacker with access to the system could access uninitialized memory causing crashes or information disclosure. No authentication is required to exploit this vulnerability.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).

Patch available 3.0% exploitation probability (EPSS)

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AnalysisAI

In Artifex Ghostscript 9.23 before 2018-08-24, attackers able to supply crafted PostScript could use uninitialized memory access in the aesdecode operator to crash the interpreter or potentially. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. This Use of Uninitialized Resource vulnerability could allow attackers to access uninitialized memory causing crashes or information disclosure.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Initialize all variables, use compiler warnings for uninitialized access, use memory-safe languages.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

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Technical ContextAI · show details

This vulnerability is classified as Use of Uninitialized Resource (CWE-908), which allows attackers to access uninitialized memory causing crashes or information disclosure. In Artifex Ghostscript 9.23 before 2018-08-24, attackers able to supply crafted PostScript could use uninitialized memory access in the aesdecode operator to crash the interpreter or potentially execute code. Affected products include: Debian Debian Linux, Canonical Ubuntu Linux, Artifex Ghostscript, Artifex Gpl Ghostscript, Redhat Enterprise Linux Desktop. Version information: before 2018.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 7.8 HIGH

AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

DescriptionNVD

Threat Intelligence Overview

EPSS Score

3.0%

Top 14% exploitable

Data Quality

2 sources

Confidence: Low

NVD

CVE.org

EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity HIGH

CISA KEV No

Public POC No

EPSS 3.0%

Patch available Yes

Active threat No

Deciding rule

HIGH severity (CVSS 7.0-8.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Defer

Exploitation· derived

None

System Exposure· derived

Small

Automatable· derived

Human Impact· derived

Medium

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +3

CVSS: +39

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Denial of Service MEDIUM

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

Affected Products (CPE)NVD

cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*

cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*

cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*

cpe:2.3:a:artifex:ghostscript:*:*:*:*:*:*:*:*

cpe:2.3:a:artifex:gpl_ghostscript:*:*:*:*:*:*:*:*

cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*

cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*

cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*

cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:*

cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*

cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*

cpe:2.3:a:pulsesecure:pulse_connect_secure:*:*:*:*:*:*:*:*

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The PS Interpreter in Ghostscript 9.18 and 9.20 allows remote attackers to execute arbitrary code via crafted userparams

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Multiple integer underflows in the icmLut_allocate function in International Color Consortium (ICC) Format library (iccl

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In Artifex Ghostscript through 10.01.0, there is a buffer overflow leading to potential corruption of data internal to t

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Artifex Ghostscript 9.25 and earlier allows attackers to bypass a sandbox protection mechanism via vectors involving the

CVE-2018-17961 HIGH This Week POC

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Artifex Ghostscript 9.25 and earlier allows attackers to bypass a sandbox protection mechanism via vectors involving err

CVE-2016-10317 HIGH This Week POC

7.8 Apr 03

The fill_threshhold_buffer function in base/gxht_thresh.c in Artifex Software, Inc. Rated high severity (CVSS 7.8), this

CVE-2017-9611 HIGH This Week POC

7.8 Jul 26

The Ins_MIRP function in base/ttinterp.c in Artifex Ghostscript GhostXPS 9.21 allows remote attackers to cause a denial

CVE-2017-9835 HIGH This Week POC

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The gs_alloc_ref_array function in psi/ialloc.c in Artifex Ghostscript 9.21 allows remote attackers to cause a denial of

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Same weakness CWE-908 – Use of Uninitialized Resource

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References

Advisories & patches

PATCH https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44101 PATCH https://www.kb.cert.org/vuls/id/332928 ADVISORY https://bugs.ghostscript.com/show_bug.cgi?id=699665 REF http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=8e9ce5016db968b40e4ec255a3005f2786cce45f REF http://www.securityfocus.com/bid/105122 REF https://access.redhat.com/errata/RHSA-2018:3834 REF https://lists.debian.org/debian-lts-announce/2018/09/msg00015.html REF https://security.gentoo.org/glsa/201811-12 REF https://support.f5.com/csp/article/K22141757?utm_source=f5support&amp%3Butm_medium=RSS REF https://usn.ubuntu.com/3768-1/ REF https://www.debian.org/security/2018/dsa-4288

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