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CVE-2018-13785· NVD / CVE Program· CNA mitre

In libpng 1.6.34, a wrong calculation of row_factor in the png_check_chunk_length function (pngrutil.c) may trigger an integer overflow and

Noroxi assessment

Priority: Monitor (action score 27/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 4.4% (FIRST EPSS); higher than 91.2% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. A user must open a link or visit a page. No special conditions are required; it is repeatable.
  • Fixed version: libpng1.6 (Debian:12) 1.6.34-2; java-1_8_0-openjdk (openSUSE:Leap 15.0) 1.8.0.191-lp150.2.9.2; libpng16 (openSUSE:Leap 15.0) 1.6.34-lp151.3.3.1.

Low priority for now. Upgrade to libpng1.6 (Debian:12) 1.6.34-2; java-1_8_0-openjdk (openSUSE:Leap 15.0) 1.8.0.191-lp150.2.9.2; libpng16 (openSUSE:Leap 15.0) 1.6.34-lp151.3.3.1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

In libpng 1.6.34, a wrong calculation of row_factor in the png_check_chunk_length function (pngrutil.c) may trigger an integer overflow and resultant divide-by-zero while processing a crafted PNG file, leading to a denial of service.

MediumCVSS 6.5 · v3.1—No exploit Fix available
Published
Jul 9, 2018
Updated
Jun 16, 2026
EPSS
4.4% · 91th percentile

Report tools

JSON

Action score

27

Monitor

Low priority for now.

CVSS
26 / 40 · 6.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 4.4%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

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When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
libpnglibpng
canonicalubuntu linux
oraclejdk
oraclejre
redhatenterprise linux desktop
redhatenterprise linux server
redhatenterprise linux workstation

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • oracle jdk1.6.0
  • oracle jdk1.7.0
  • oracle jdk1.8.0
  • oracle jdk11.0.0
  • oracle jre1.6.0
  • oracle jre1.7.0
  • oracle jre1.8.0
  • oracle jre11.0.0

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12libpng1.6before 1.6.34-21.6.34-2
openSUSE:Leap 15.0java-1_8_0-openjdkbefore 1.8.0.191-lp150.2.9.21.8.0.191-lp150.2.9.2
openSUSE:Leap 15.0libpng16before 1.6.34-lp151.3.3.11.6.34-lp151.3.3.1
openSUSE:Tumbleweedlibpng16before 1.6.37-3.31.6.37-3.3
Red Hat:rhel_extras_oracle_java:6java-1.6.0-sunbefore 1:1.6.0.211-1jpp.1.el61:1.6.0.211-1jpp.1.el6
Red Hat:rhel_extras_oracle_java:6java-1.6.0-sun-demobefore 1:1.6.0.211-1jpp.1.el61:1.6.0.211-1jpp.1.el6
Red Hat:rhel_extras_oracle_java:6java-1.6.0-sun-develbefore 1:1.6.0.211-1jpp.1.el61:1.6.0.211-1jpp.1.el6
Red Hat:rhel_extras_oracle_java:6java-1.6.0-sun-jdbcbefore 1:1.6.0.211-1jpp.1.el61:1.6.0.211-1jpp.1.el6
Red Hat:rhel_extras_oracle_java:6java-1.6.0-sun-pluginbefore 1:1.6.0.211-1jpp.1.el61:1.6.0.211-1jpp.1.el6
Red Hat:rhel_extras_oracle_java:6java-1.6.0-sun-srcbefore 1:1.6.0.211-1jpp.1.el61:1.6.0.211-1jpp.1.el6
Red Hat:rhel_extras_oracle_java:6java-1.7.0-oraclebefore 1:1.7.0.201-1jpp.1.el61:1.7.0.201-1jpp.1.el6
Red Hat:rhel_extras_oracle_java:6java-1.7.0-oracle-develbefore 1:1.7.0.201-1jpp.1.el61:1.7.0.201-1jpp.1.el6
Red Hat:rhel_extras_oracle_java:6java-1.7.0-oracle-javafxbefore 1:1.7.0.201-1jpp.1.el61:1.7.0.201-1jpp.1.el6
Red Hat:rhel_extras_oracle_java:6java-1.7.0-oracle-jdbcbefore 1:1.7.0.201-1jpp.1.el61:1.7.0.201-1jpp.1.el6
Red Hat:rhel_extras_oracle_java:6java-1.7.0-oracle-pluginbefore 1:1.7.0.201-1jpp.1.el61:1.7.0.201-1jpp.1.el6
Red Hat:rhel_extras_oracle_java:6java-1.7.0-oracle-srcbefore 1:1.7.0.201-1jpp.1.el61:1.7.0.201-1jpp.1.el6
Red Hat:rhel_extras_oracle_java:6java-1.8.0-oraclebefore 1:1.8.0.191-1jpp.1.el61:1.8.0.191-1jpp.1.el6
Red Hat:rhel_extras_oracle_java:6java-1.8.0-oracle-develbefore 1:1.8.0.191-1jpp.1.el61:1.8.0.191-1jpp.1.el6
Red Hat:rhel_extras_oracle_java:6java-1.8.0-oracle-javafxbefore 1:1.8.0.191-1jpp.1.el61:1.8.0.191-1jpp.1.el6
Red Hat:rhel_extras_oracle_java:6java-1.8.0-oracle-jdbcbefore 1:1.8.0.191-1jpp.1.el61:1.8.0.191-1jpp.1.el6
Red Hat:rhel_extras_oracle_java:6java-1.8.0-oracle-pluginbefore 1:1.8.0.191-1jpp.1.el61:1.8.0.191-1jpp.1.el6
Red Hat:rhel_extras_oracle_java:6java-1.8.0-oracle-srcbefore 1:1.8.0.191-1jpp.1.el61:1.8.0.191-1jpp.1.el6
Red Hat:rhel_extras_oracle_java:7java-1.6.0-sunbefore 1:1.6.0.211-1jpp.1.el71:1.6.0.211-1jpp.1.el7
Red Hat:rhel_extras_oracle_java:7java-1.6.0-sun-demobefore 1:1.6.0.211-1jpp.1.el71:1.6.0.211-1jpp.1.el7

+49

Same product

libpng: all records

Other highest-scoring records for the same primary product.

  • CVE-2010-1205Buffer overflow in pngpread.c in libpng before 1.2.44 and 1.4.x before 1.4.3, as used in progressive applications, might allow remote attack
    52Plan
  • CVE-2017-12652libpng before 1.6.32 does not properly check the length of chunks against the user limit.
    40Plan
  • CVE-2015-8540Integer underflow in the png_check_keyword function in pngwutil.c in libpng 0.90 through 0.99, 1.0.x before 1.0.66, 1.1.x and 1.2.x before 1
    37Monitor
  • CVE-2018-14550An issue has been found in third-party PNM decoding associated with libpng 1.6.35.
    36Monitor
  • CVE-2015-0973Buffer overflow in the png_read_IDAT_data function in pngrutil.c in libpng before 1.5.21 and 1.6.x before 1.6.16 allows context-dependent at
    36Monitor
  • CVE-2014-9495Heap-based buffer overflow in the png_combine_row function in libpng before 1.5.21 and 1.6.x before 1.6.16, when running on 64-bit systems,
    36Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:libpng1.61.6.34-2 · Debian:12Package registry (OSV)
opensuse:java-1_8_0-openjdk1.8.0.191-lp150.2.9.2 · openSUSE:Leap 15.0Package registry (OSV)
opensuse:libpng161.6.34-lp151.3.3.1 · openSUSE:Leap 15.0Package registry (OSV)
red hat:java-1.7.0-oracle1:1.7.0.201-1jpp.1.el6 · Red Hat:rhel_extras_oracle_java:6Package registry (OSV)
red hat:java-1.7.0-oracle-devel1:1.7.0.201-1jpp.1.el6 · Red Hat:rhel_extras_oracle_java:6Package registry (OSV)
red hat:java-1.7.0-oracle-javafx1:1.7.0.201-1jpp.1.el6 · Red Hat:rhel_extras_oracle_java:6Package registry (OSV)
red hat:java-1.7.0-oracle-jdbc1:1.7.0.201-1jpp.1.el6 · Red Hat:rhel_extras_oracle_java:6Package registry (OSV)
red hat:java-1.7.0-oracle-plugin1:1.7.0.201-1jpp.1.el6 · Red Hat:rhel_extras_oracle_java:6Package registry (OSV)
red hat:java-1.7.0-oracle-src1:1.7.0.201-1jpp.1.el6 · Red Hat:rhel_extras_oracle_java:6Package registry (OSV)
red hat:java-1.8.0-oracle1:1.8.0.191-1jpp.1.el7 · Red Hat:rhel_extras_oracle_java:7Package registry (OSV)
red hat:java-1.8.0-oracle-devel1:1.8.0.191-1jpp.1.el7 · Red Hat:rhel_extras_oracle_java:7Package registry (OSV)
red hat:java-1.8.0-oracle-javafx1:1.8.0.191-1jpp.1.el7 · Red Hat:rhel_extras_oracle_java:7Package registry (OSV)
red hat:java-1.8.0-oracle-jdbc1:1.8.0.191-1jpp.1.el7 · Red Hat:rhel_extras_oracle_java:7Package registry (OSV)
red hat:java-1.8.0-oracle-plugin1:1.8.0.191-1jpp.1.el7 · Red Hat:rhel_extras_oracle_java:7Package registry (OSV)
red hat:java-1.8.0-oracle-src1:1.8.0.191-1jpp.1.el7 · Red Hat:rhel_extras_oracle_java:7Package registry (OSV)
suse:java-1_7_0-ibm1.7.0_sr10.35-65.31.1 · SUSE:Linux Enterprise Point of Sale 11 SP3Package registry (OSV)
suse:java-1_7_0-openjdk1.7.0.201-43.18.1 · SUSE:OpenStack Cloud 7Package registry (OSV)
suse:java-1_7_1-ibm1.7.1_sr4.35-26.32.1 · SUSE:Linux Enterprise Software Development Kit 11 SP4Package registry (OSV)
suse:java-1_8_0-ibm1.8.0_sr5.25-3.9.1 · SUSE:Linux Enterprise Module for Legacy 15Package registry (OSV)
suse:java-1_8_0-openjdk1.8.0.191-27.29.1 · SUSE:OpenStack Cloud 7Package registry (OSV)
suse:libpng161.6.34-3.9.1 · SUSE:Linux Enterprise Module for Basesystem 15Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • A user must open a link or visit a page.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-190 · Integer Overflow or Wraparound

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (19 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records