NULL pointer dereference vulnerability in the rebuild_vlists function in lib/dotgen/conc.c in the dotgen library in Graphviz 2.40.1 allows remote attackers to cause a denial of service (application crash) via a crafted file.

The remote Ubuntu 18.04 ESM / 20.04 ESM host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-5971-1 advisory.

    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)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Ubuntu 16.04 ESM host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-5264-1 advisory.

    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)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

CVE-2018-10196

NULL pointer dereference vulnerability in the rebuild_vlists function in lib/dotgen/conc.c in the dotgen library allows remote attackers to cause a denial of service (application crash) via a crafted file.

CVE-2020-18032

A buffer overflow was discovered in Graphviz, which could potentially result in the execution of arbitrary code when processing a malformed file.

For Debian 9 stretch, these problems have been fixed in version 2.38.0-17+deb9u1.

We recommend that you upgrade your graphviz packages.

For the detailed security status of graphviz please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/graphviz

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the version of the graphviz packages installed, the EulerOS installation on the remote host is affected by the following vulnerability :

  - NULL pointer dereference vulnerability in the     rebuild_vlists function in lib/dotgen/conc.c in the     dotgen library in Graphviz 2.40.1 allows remote     attackers to cause a denial of service (application     crash) via a crafted file.(CVE-2018-10196)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for graphviz fixes the following issues :

CVE-2018-10196: Fixed a null dereference in rebuild_vlis (bsc#1093447).

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for graphviz fixes the following issues :

  - CVE-2018-10196: Fixed a null dereference in rebuild_vlis     (bsc#1093447).&#9; 

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

Rename python2 subpackage to graphviz-python2.

----

Fixed CVE-2018-10196.

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Fixed CVE-2018-10196.

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
173372	Ubuntu 18.04 ESM / 20.04 ESM : Graphviz vulnerabilities (USN-5971-1)	Nessus	Ubuntu Local Security Checks	high
157371	Ubuntu 16.04 ESM : Graphviz vulnerabilities (USN-5264-1)	Nessus	Ubuntu Local Security Checks	high
149485	Debian DLA-2659-1 : graphviz security update	Nessus	Debian Local Security Checks	high
149186	EulerOS 2.0 SP3 : graphviz (EulerOS-SA-2021-1793)	Nessus	Huawei Local Security Checks	medium
146646	EulerOS 2.0 SP2 : graphviz (EulerOS-SA-2021-1303)	Nessus	Huawei Local Security Checks	medium
143816	SUSE SLES12 Security Update : graphviz (SUSE-SU-2020:3090-1)	Nessus	SuSE Local Security Checks	medium
142088	EulerOS 2.0 SP5 : graphviz (EulerOS-SA-2020-2284)	Nessus	Huawei Local Security Checks	medium
140081	openSUSE Security Update : graphviz (openSUSE-2020-1303)	Nessus	SuSE Local Security Checks	medium
140079	openSUSE Security Update : graphviz (openSUSE-2020-1294)	Nessus	SuSE Local Security Checks	medium
139907	SUSE SLED15 / SLES15 Security Update : graphviz (SUSE-SU-2020:2346-1)	Nessus	SuSE Local Security Checks	medium
120298	Fedora 28 : graphviz (2018-25674bb48e)	Nessus	Fedora Local Security Checks	medium
110211	Fedora 27 : graphviz (2018-fd850e033d)	Nessus	Fedora Local Security Checks	medium

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