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CVE-2019-11023

The agroot() function in cgraph\obj.c in libcgraph.a in Graphviz 2.39.20160612.1140 has a NULL...

8.8 HighFix available

The agroot() function in cgraph\obj.c in libcgraph.a in Graphviz 2.39.20160612.1140 has a NULL pointer dereference, as demonstrated by graphml2gv.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

4.89%Up 3.0 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 8.8

The agroot() function in cgraph\obj.c in libcgraph.a in Graphviz 2.39.20160612.1140 has a NULL pointer dereference, as demonstrated by graphml2gv.

Record
CVE-2019-11023
CVSS 3.0
8.8 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.0
6.8 MediumAV:N/AC:M/Au:N/C:P/I:P/A:P
Weakness
CWE-476
Updated
2026-11-02
CVE List No score

The agroot() function in cgraph\obj.c in libcgraph.a in Graphviz 2.39.20160612.1140 has a NULL pointer dereference, as demonstrated by graphml2gv.

Record
CVE-2019-11023
Updated
2026-11-02
EUVDEUVD-2019-2732 No score

The agroot() function in cgraph\obj.c in libcgraph.a in Graphviz 2.39.20160612.1140 has a NULL pointer dereference, as demonstrated by graphml2gv.

Record
EUVD-2019-2732
Updated
2026-11-03
GitHub AdvisoriesGHSA-5j8x-q537-j965 8.8

The agroot() function in cgraph\obj.c in libcgraph.a in Graphviz 2.39.20160612.1140 has a NULL...

The agroot() function in cgraph\obj.c in libcgraph.a in Graphviz 2.39.20160612.1140 has a NULL pointer dereference, as demonstrated by graphml2gv.

Record
GHSA-5j8x-q537-j965
CVSS 3.0
8.8 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness
CWE-476
Updated
2026-11-02
OSVBELL-CVE-2019-11023 8.8

CVE-2019-11023 does not affect BellSoft software

Record
BELL-CVE-2019-11023
CVSS 3.0
8.8 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSV 8.8

The agroot() function in cgraph\obj.c in libcgraph.a in Graphviz 2.39.20160612.1140 has a NULL pointer dereference, as demonstrated by graphml2gv.

Record
CVE-2019-11023
CVSS 3.0
8.8 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
Show 13 moreShow less
OSVDEBIAN-CVE-2019-11023 8.8

The agroot() function in cgraph\obj.c in libcgraph.a in Graphviz 2.39.20160612.1140 has a NULL pointer dereference, as demonstrated by graphml2gv.

Record
DEBIAN-CVE-2019-11023
CVSS 3.0
8.8 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2019-11023 8.8

The agroot() function in cgraph\obj.c in libcgraph.a in Graphviz 2.39.20160612.1140 has a NULL pointer dereference, as demonstrated by graphml2gv.

Record
UBUNTU-CVE-2019-11023
CVSS 3.0
8.8 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVMGASA-2019-0305 No score

Updated graphviz packages fix security vulnerability

The updated packages fix a security vulnerability:

The agroot() function in cgraph\obj.c in libcgraph.a in Graphviz 2.39.20160612.1140 has a NULL pointer dereference, as demonstrated by graphml2gv. (CVE-2019-11023)

Record
MGASA-2019-0305
Updated
2026-11-02
OSVopenSUSE-SU-2019:1434-1 No score

Security update for graphviz

This update for graphviz fixes the following issues:

Security issue fixed:

  • CVE-2019-11023: Fixed a denial of service vulnerability, which was caused by a NULL pointer dereference in agroot() (bsc#1132091).

This update was imported from the SUSE:SLE-15:Update update project.

Record
openSUSE-SU-2019:1434-1
Updated
2026-11-02
OSVopenSUSE-SU-2019:1459-1 No score

Security update for graphviz

This update for graphviz fixes the following issues:

Security issue fixed:

  • CVE-2019-11023: Fixed a denial of service vulnerability, which was caused by a NULL pointer dereference in agroot() (bsc#1132091).

This update was imported from the SUSE:SLE-15:Update update project.

Record
openSUSE-SU-2019:1459-1
Updated
2026-11-02
OSVopenSUSE-SU-2020:0876-1 No score

Security update for graphviz

This update for graphviz fixes the following issues:

Security issue fixed:

  • CVE-2019-11023: Fixed a denial of service vulnerability, which was caused by a NULL pointer dereference in agroot() (bsc#1132091).

This update was imported from the SUSE:SLE-15:Update update project.

Record
openSUSE-SU-2020:0876-1
Updated
2026-11-02
OSVopenSUSE-SU-2020:0906-1 No score

Security update for graphviz

This update for graphviz fixes the following issues:

Security issue fixed:

  • CVE-2019-11023: Fixed a denial of service vulnerability, which was caused by a NULL pointer dereference in agroot() (bsc#1132091).

This update was imported from the SUSE:SLE-15:Update update project.

Record
openSUSE-SU-2020:0906-1
Updated
2026-11-02
OSVopenSUSE-SU-2024:10821-1 No score

graphviz-2.48.0-4.2 on GA media

These are all security issues fixed in the graphviz-2.48.0-4.2 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:10821-1
Updated
2026-11-02
OSVSUSE-SU-2019:1267-1 No score

Security update for graphviz

This update for graphviz fixes the following issues:

Security issue fixed:

  • CVE-2019-11023: Fixed a denial of service vulnerability, which was caused by a NULL pointer dereference in agroot() (bsc#1132091).
Record
SUSE-SU-2019:1267-1
Updated
2026-11-02
OSVSUSE-SU-2019:1267-2 No score

Security update for graphviz

This update for graphviz fixes the following issues:

Security issue fixed:

  • CVE-2019-11023: Fixed a denial of service vulnerability, which was caused by a NULL pointer dereference in agroot() (bsc#1132091).
Record
SUSE-SU-2019:1267-2
Updated
2026-11-02
OSVSUSE-SU-2019:1267-3 No score

Security update for graphviz

This update for graphviz fixes the following issues:

Security issue fixed:

  • CVE-2019-11023: Fixed a denial of service vulnerability, which was caused by a NULL pointer dereference in agroot() (bsc#1132091).
Record
SUSE-SU-2019:1267-3
Updated
2026-11-02
OSVUSN-5264-1 No score

graphviz vulnerabilities

It was discovered that graphviz contains null pointer dereference vulnerabilities. Exploitation via a specially crafted input file can cause a denial of service. (CVE-2018-10196, CVE-2019-11023)

It was discovered that graphviz contains a buffer overflow vulnerability. Exploitation via a specially crafted input file can cause a denial of service or possibly allow for arbitrary code execution. (CVE-2020-18032)

Record
USN-5264-1
Updated
2026-11-02
OSVUSN-5971-1 No score

graphviz vulnerabilities

It was discovered that graphviz contains null pointer dereference vulnerabilities. Exploitation via a specially crafted input file can cause a denial of service. This issue only affected Ubuntu 18.04 LTS. (CVE-2018-10196)

It was discovered that graphviz contains null pointer dereference vulnerabilities. Exploitation via a specially crafted input file can cause a denial of service. These issues only affected Ubuntu 14.04 ESM and Ubuntu 18.04 LTS. (CVE-2019-11023)

It was discovered that graphviz contains a buffer overflow vulnerability. Exploitation via a specially crafted input file can cause a denial of service or possibly allow for arbitrary code execution. These issues only affected Ubuntu 14.04 ESM, Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2020-18032)

Record
USN-5971-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
graphviz
Debian:12
 All versions, plus listed versions
10.0.0~git231018-110.0.0~git231105-110.0.0~git231111-110.0.0~git231209-110.0.0~git231210-1
Show 32 moreShow less
10.0.0~git231218-110.0.1-111.0.0-112.0.0-112.1.0-112.1.1-112.1.2-112.2.0-112.2.1-113.1.1-113.1.2-114.0.1-114.0.2-114.0.4-114.0.5-114.0.5-214.1.1-114.1.1-214.1.2-116.0.0-116.1.0-12.42.2-102.42.2-72.42.2-7+deb12u12.42.2-82.42.2-92.42.4-12.42.4-22.42.4-38.1.0-18.1.0-29.0.0-1
 None known
graphviz
Debian:13
 All versions, plus listed versions
10.0.0~git231018-110.0.0~git231105-110.0.0~git231111-110.0.0~git231209-110.0.0~git231210-1
Show 25 moreShow less
10.0.0~git231218-110.0.1-111.0.0-112.0.0-112.1.0-112.1.1-112.1.2-112.2.0-112.2.1-113.1.1-113.1.2-114.0.1-114.0.2-114.0.4-114.0.5-114.0.5-214.1.1-114.1.1-214.1.2-116.0.0-116.1.0-12.42.4-38.1.0-18.1.0-29.0.0-1
 None known
graphviz
Debian:14
 All versions, plus listed versions
10.0.0~git231018-110.0.0~git231105-110.0.0~git231111-110.0.0~git231209-110.0.0~git231210-1
Show 25 moreShow less
10.0.0~git231218-110.0.1-111.0.0-112.0.0-112.1.0-112.1.1-112.1.2-112.2.0-112.2.1-113.1.1-113.1.2-114.0.1-114.0.2-114.0.4-114.0.5-114.0.5-214.1.1-114.1.1-214.1.2-116.0.0-116.1.0-12.42.4-38.1.0-18.1.0-29.0.0-1
 None known
graphviz
Mageia:7
 before 2.40.1-17.1.mga7
2.40.1-17.1.mga7
graphviz
SUSE:Linux Enterprise Module for Basesystem 15
 before 2.40.1-6.3.2
2.40.1-6.3.2
graphviz-addons
SUSE:Linux Enterprise Module for Development Tools 15
 before 2.40.1-6.3.2
2.40.1-6.3.2
graphviz-addons
SUSE:Linux Enterprise Module for Package Hub 15
 before 2.40.1-6.3.2
2.40.1-6.3.2
graphviz-addons
SUSE:Linux Enterprise Module for Server Applications 15
 before 2.40.1-6.3.2
2.40.1-6.3.2
graphviz-addons
SUSE:Linux Enterprise High Availability Extension 15
 before 2.40.1-6.3.2
2.40.1-6.3.2
graphviz
SUSE:Linux Enterprise Module for Basesystem 15 SP1
 before 2.40.1-6.3.2
2.40.1-6.3.2
Show 25 moreShow less
Affected packages
PackageAffectedFixed
graphviz-addons
SUSE:Linux Enterprise Module for Development Tools 15 SP1
 before 2.40.1-6.3.2
2.40.1-6.3.2
graphviz-addons
SUSE:Linux Enterprise Module for Server Applications 15 SP1
 before 2.40.1-6.3.2
2.40.1-6.3.2
graphviz-addons
SUSE:Linux Enterprise High Availability Extension 15 SP1
 before 2.40.1-6.3.2
2.40.1-6.3.2
graphviz
SUSE:Linux Enterprise Module for Basesystem 15 SP2
 before 2.40.1-6.3.2
2.40.1-6.3.2
graphviz-addons
SUSE:Linux Enterprise Module for Development Tools 15 SP2
 before 2.40.1-6.3.2
2.40.1-6.3.2
graphviz-addons
SUSE:Linux Enterprise Module for Package Hub 15 SP1
 before 2.40.1-6.3.2
2.40.1-6.3.2
graphviz-addons
SUSE:Linux Enterprise Module for Package Hub 15 SP2
 before 2.40.1-6.3.2
2.40.1-6.3.2
graphviz-addons
SUSE:Linux Enterprise Module for Server Applications 15 SP2
 before 2.40.1-6.3.2
2.40.1-6.3.2
graphviz-addons
SUSE:Linux Enterprise High Availability Extension 15 SP2
 before 2.40.1-6.3.2
2.40.1-6.3.2
graphviz
Ubuntu:Pro:14.04:LTS
 before 2.36.0-0ubuntu3.2+esm1, plus listed versions
2.26.3-15ubuntu42.34.0-0ubuntu42.34.0-0ubuntu52.36.0-0ubuntu12.36.0-0ubuntu22.36.0-0ubuntu32.36.0-0ubuntu3.12.36.0-0ubuntu3.2
2.36.0-0ubuntu3.2+esm1
graphviz
Ubuntu:Pro:16.04:LTS
 before 2.38.0-12ubuntu2.1+esm1, plus listed versions
2.38.0-10build12.38.0-112.38.0-122.38.0-12build12.38.0-12ubuntu12.38.0-12ubuntu22.38.0-12ubuntu2.1
2.38.0-12ubuntu2.1+esm1
graphviz
Ubuntu:Pro:18.04:LTS
 before 2.40.1-2ubuntu0.1~esm1, plus listed versions
2.38.0-16ubuntu22.38.0-18ubuntu12.40.1-0ubuntu52.40.1-0ubuntu62.40.1-2
2.40.1-2ubuntu0.1~esm1
graphviz
Ubuntu:Pro:16.04:LTS
From an advisory covering 3 CVEs
 before 2.38.0-12ubuntu2.1+esm1, plus listed versions
2.38.0-10build12.38.0-112.38.0-122.38.0-12build12.38.0-12ubuntu12.38.0-12ubuntu22.38.0-12ubuntu2.1
2.38.0-12ubuntu2.1+esm1
graphviz
Ubuntu:Pro:14.04:LTS
From an advisory covering 3 CVEs
 before 2.36.0-0ubuntu3.2+esm1, plus listed versions
2.26.3-15ubuntu42.34.0-0ubuntu42.34.0-0ubuntu52.36.0-0ubuntu12.36.0-0ubuntu22.36.0-0ubuntu32.36.0-0ubuntu3.12.36.0-0ubuntu3.2
2.36.0-0ubuntu3.2+esm1
graphviz
Ubuntu:Pro:18.04:LTS
From an advisory covering 3 CVEs
 before 2.40.1-2ubuntu0.1~esm1, plus listed versions
2.38.0-16ubuntu22.38.0-18ubuntu12.40.1-0ubuntu52.40.1-0ubuntu62.40.1-2
2.40.1-2ubuntu0.1~esm1
graphviz
Ubuntu:Pro:20.04:LTS
From an advisory covering 3 CVEs
 before 2.42.2-3ubuntu0.1~esm1, plus listed versions
2.40.1-7build12.40.1-7build22.42.2-32.42.2-3build12.42.2-3build2
2.42.2-3ubuntu0.1~esm1
graphviz
openSUSE:Leap 15.1
 before 2.40.1-lp151.6.3.1
2.40.1-lp151.6.3.1
graphviz-addons
openSUSE:Leap 15.1
 before 2.40.1-lp151.6.3.1
2.40.1-lp151.6.3.1
graphviz
openSUSE:Leap 15.0
 before 2.40.1-lp150.5.3.1
2.40.1-lp150.5.3.1
graphviz-addons
openSUSE:Leap 15.0
 before 2.40.1-lp150.5.3.1
2.40.1-lp150.5.3.1
graphviz
openSUSE:Leap 15.2
 before 2.40.1-lp152.7.2.1
2.40.1-lp152.7.2.1
graphviz-addons
openSUSE:Leap 15.2
 before 2.40.1-lp152.7.3.1
2.40.1-lp152.7.3.1
graphviz
openSUSE:Leap 15.2
 before 2.40.1-lp152.7.4.2
2.40.1-lp152.7.4.2
graphviz-addons
openSUSE:Leap 15.2
 before 2.40.1-lp152.7.4.2
2.40.1-lp152.7.4.2
graphviz
openSUSE:Tumbleweed
From an advisory covering 2 CVEs
 before 2.48.0-4.2
2.48.0-4.2

History

History
RecordedChangedSources
affected, facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2019-11023 is a high vulnerability (CVSS 8.8) in Graphviz, published April 8, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 4.89%, the 92nd percentile. Fixed in graphviz 2.40.1-17.1.mga7.

References

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