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CVE-2019-11038· NVD / CVE Program· CNA php

Uninitialized read in gdImageCreateFromXbm

Noroxi assessment

Priority: Monitor (action score 22/100)

  • 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: 4.3% (FIRST EPSS); higher than 91% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: gd (Alpine:v3.10) 2.2.5-r3; gd (Alpine:v3.12) 2.3.0-r0; libgd2 (Debian:12) 2.2.5-5.2.
  • Severity is disputed: the assigning authority (CNA) scores it 3.1, NVD 5.3.

Low priority for now. Upgrade to gd (Alpine:v3.10) 2.2.5-r3; gd (Alpine:v3.12) 2.3.0-r0; libgd2 (Debian:12) 2.2.5-5.2 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

When using the gdImageCreateFromXbm() function in the GD Graphics Library (aka LibGD) 2.2.5, as used in the PHP GD extension in PHP versions 7.1.x below 7.1.30, 7.2.x below 7.2.19 and 7.3.x below 7.3.6, it is possible to supply data that will cause the function to use the value of uninitialized variable. This may lead to disclosing contents of the stack that has been left there by previous code.

MediumCVSS 5.3 · v3.1—No exploit Fix available
Published
Jun 18, 2019
Updated
Jun 16, 2026
EPSS
4.3% · 91th percentile

Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
21 / 40 · 5.3 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 4.3%

CNA vs NVD score

NVD
5.3
CNA · php
3.1
2.2 point gap

CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

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.

Follow CVE-2019-11038

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
libgdlibgd
phpphp
canonicalubuntu linux
debiandebian linux
fedoraprojectfedora
suselinux enterprise debuginfo
opensuseleap
suselinux enterprise desktop
suselinux enterprise server
suselinux enterprise software development kit
suselinux enterprise workstation extension
redhatsoftware collections

and 1 more

Affected versions

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

  • php php7.1.0 and later · before 7.1.30
  • php php7.2.0 and later · before 7.2.19
  • php php7.3.0 and later · before 7.3.6

Versions reported by the vendor

Affected version ranges reported by the assigning authority (php). Independent of NVD's CPE analysis and usually ahead of it.

  • PHP Group PHP

    • 7.1.x < 7.1.30, 7.2.x < 7.2.19, 7.3.x < 7.3.6affected

Package-level exposure

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

EcosystemPackageAffected rangeFix
Alpine:v3.10gdbefore 2.2.5-r32.2.5-r3
Alpine:v3.12gdbefore 2.3.0-r02.3.0-r0
Debian:12libgd2before 2.2.5-5.22.2.5-5.2
Debian:8libgd2before 2.1.0-5+deb8u132.1.0-5+deb8u13
Debian:9php7.0before 7.0.33-0+deb9u57.0.33-0+deb9u5
openSUSE:Leap 15.1gdbefore 2.2.5-lp151.6.6.12.2.5-lp151.6.6.1
openSUSE:Tumbleweedgdbefore 2.3.3-1.12.3.3-1.1
Red Hat:rhel_software_collections:3::el7rh-php72-phpbefore 0:7.2.24-1.el70:7.2.24-1.el7
Red Hat:rhel_software_collections:3::el7rh-php72-php-bcmathbefore 0:7.2.24-1.el70:7.2.24-1.el7
Red Hat:rhel_software_collections:3::el7rh-php72-php-clibefore 0:7.2.24-1.el70:7.2.24-1.el7
Red Hat:rhel_software_collections:3::el7rh-php72-php-commonbefore 0:7.2.24-1.el70:7.2.24-1.el7
Red Hat:rhel_software_collections:3::el7rh-php72-php-dbabefore 0:7.2.24-1.el70:7.2.24-1.el7
Red Hat:rhel_software_collections:3::el7rh-php72-php-dbgbefore 0:7.2.24-1.el70:7.2.24-1.el7
Red Hat:rhel_software_collections:3::el7rh-php72-php-debuginfobefore 0:7.2.24-1.el70:7.2.24-1.el7
Red Hat:rhel_software_collections:3::el7rh-php72-php-develbefore 0:7.2.24-1.el70:7.2.24-1.el7
Red Hat:rhel_software_collections:3::el7rh-php72-php-embeddedbefore 0:7.2.24-1.el70:7.2.24-1.el7
Red Hat:rhel_software_collections:3::el7rh-php72-php-enchantbefore 0:7.2.24-1.el70:7.2.24-1.el7
Red Hat:rhel_software_collections:3::el7rh-php72-php-fpmbefore 0:7.2.24-1.el70:7.2.24-1.el7
Red Hat:rhel_software_collections:3::el7rh-php72-php-gdbefore 0:7.2.24-1.el70:7.2.24-1.el7
Red Hat:rhel_software_collections:3::el7rh-php72-php-gmpbefore 0:7.2.24-1.el70:7.2.24-1.el7
Red Hat:rhel_software_collections:3::el7rh-php72-php-intlbefore 0:7.2.24-1.el70:7.2.24-1.el7
Red Hat:rhel_software_collections:3::el7rh-php72-php-jsonbefore 0:7.2.24-1.el70:7.2.24-1.el7
Red Hat:rhel_software_collections:3::el7rh-php72-php-ldapbefore 0:7.2.24-1.el70:7.2.24-1.el7
Red Hat:rhel_software_collections:3::el7rh-php72-php-mbstringbefore 0:7.2.24-1.el70:7.2.24-1.el7

+17

Same product

libgd: all records

Other highest-scoring records for the same primary product.

  • CVE-2019-6977gdImageColorMatch in gd_color_match.c in the GD Graphics Library (aka LibGD) 2.2.5, as used in the imagecolormatch function in PHP before 5.
    56Plan
  • CVE-2016-3074Integer signedness error in GD Graphics Library 2.1.1 (aka libgd or libgd2) allows remote attackers to cause a denial of service (crash) or
    50Plan
  • CVE-2016-10166Integer underflow in the _gdContributionsAlloc function in gd_interpolation.c in the GD Graphics Library (aka libgd) before 2.2.4 allows rem
    42Plan
  • CVE-2016-7568Integer overflow in the gdImageWebpCtx function in gd_webp.c in the GD Graphics Library (aka libgd) through 2.2.3, as used in PHP through 7.
    41Plan
  • CVE-2019-6978The GD Graphics Library (aka LibGD) 2.2.5 has a double free in the gdImage*Ptr() functions in gd_gif_out.c, gd_jpeg.c, and gd_wbmp.c.
    40Plan
  • CVE-2016-6912Double free vulnerability in the gdImageWebPtr function in the GD Graphics Library (aka libgd) before 2.2.4 allows remote attackers to have
    40Plan

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
alpine:gd2.2.5-r3 · Alpine:v3.10Package registry (OSV)
debian:libgd22.2.5-5.2 · Debian:12Package registry (OSV)
debian:php7.07.0.33-0+deb9u5 · Debian:9Package registry (OSV)
opensuse:gd2.2.5-lp151.6.6.1 · openSUSE:Leap 15.1Package registry (OSV)
red hat:rh-php72-php0:7.2.24-1.el7 · Red Hat:rhel_software_collections:3::el7Package registry (OSV)
red hat:rh-php72-php-bcmath0:7.2.24-1.el7 · Red Hat:rhel_software_collections:3::el7Package registry (OSV)
red hat:rh-php72-php-cli0:7.2.24-1.el7 · Red Hat:rhel_software_collections:3::el7Package registry (OSV)
red hat:rh-php72-php-common0:7.2.24-1.el7 · Red Hat:rhel_software_collections:3::el7Package registry (OSV)
red hat:rh-php72-php-dba0:7.2.24-1.el7 · Red Hat:rhel_software_collections:3::el7Package registry (OSV)
red hat:rh-php72-php-dbg0:7.2.24-1.el7 · Red Hat:rhel_software_collections:3::el7Package registry (OSV)
red hat:rh-php72-php-debuginfo0:7.2.24-1.el7 · Red Hat:rhel_software_collections:3::el7Package registry (OSV)
red hat:rh-php72-php-devel0:7.2.24-1.el7 · Red Hat:rhel_software_collections:3::el7Package registry (OSV)
red hat:rh-php72-php-embedded0:7.2.24-1.el7 · Red Hat:rhel_software_collections:3::el7Package registry (OSV)
red hat:rh-php72-php-enchant0:7.2.24-1.el7 · Red Hat:rhel_software_collections:3::el7Package registry (OSV)
red hat:rh-php72-php-fpm0:7.2.24-1.el7 · Red Hat:rhel_software_collections:3::el7Package registry (OSV)
red hat:rh-php72-php-gd0:7.2.24-1.el7 · Red Hat:rhel_software_collections:3::el7Package registry (OSV)
suse:gd2.2.5-4.14.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP1Package registry (OSV)
suse:php535.3.17-112.71.1 · SUSE:Linux Enterprise Point of Sale 11 SP3Package registry (OSV)
suse:php77.0.7-50.85.1 · SUSE:Linux Enterprise Module for Web and Scripting 12Package 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.

No commit or PR link among the references.

Credits

All researchers

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

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.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
low · data can be read
Integrity
none
Availability
none
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
Low
Integrity impact
None
Availability impact
None

Weakness class (CWE)

CWE-457 · Use of Uninitialized Variable

CVSS vector

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

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.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

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

References

Show all references (12 more)

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

All records