Ubuntu update for graphviz



Risk Medium
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2018-10196
CVE-2019-11023
CVE-2020-18032
CWE-ID CWE-476
CWE-122
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Ubuntu
Operating systems & Components / Operating system

libxdot4 (Ubuntu package)
Operating systems & Components / Operating system package or component

libpathplan4 (Ubuntu package)
Operating systems & Components / Operating system package or component

libgvpr2 (Ubuntu package)
Operating systems & Components / Operating system package or component

libgvc6-plugins-gtk (Ubuntu package)
Operating systems & Components / Operating system package or component

libgvc6 (Ubuntu package)
Operating systems & Components / Operating system package or component

libcgraph6 (Ubuntu package)
Operating systems & Components / Operating system package or component

libcdt5 (Ubuntu package)
Operating systems & Components / Operating system package or component

graphviz (Ubuntu package)
Operating systems & Components / Operating system package or component

Vendor Canonical Ltd.

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) NULL pointer dereference

EUVDB-ID: #VU76078

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-10196

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error in the rebuild_vlists() function in lib/dotgen/conc.c within the dotgen library. A remote attacker can trick the victim to open a specially crafted file and crash the application.

Mitigation

Update the affected package graphviz to the latest version.

Vulnerable software versions

Ubuntu: 16.04

libxdot4 (Ubuntu package): before 2.38.012u buntu2.1+esm1

libpathplan4 (Ubuntu package): before 2.38.012u buntu2.1+esm1

libgvpr2 (Ubuntu package): before 2.38.012u buntu2.1+esm1

libgvc6-plugins-gtk (Ubuntu package): before 2.38.012u buntu2.1+esm1

libgvc6 (Ubuntu package): before 2.38.012u buntu2.1+esm1

libcgraph6 (Ubuntu package): before 2.38.012u buntu2.1+esm1

libcdt5 (Ubuntu package): before 2.38.012u buntu2.1+esm1

graphviz (Ubuntu package): before 2.38.012u buntu2.1+esm1

CPE2.3 External links

https://ubuntu.com/security/notices/USN-5264-1


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) NULL pointer dereference

EUVDB-ID: #VU18637

Risk: Low

CVSSv4.0: 0.5 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2019-11023

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dreference error in the agroot() function within cgraphobj.c of the libcgraph.a. A remote attacker can pass specially crafted GraphML input to the affected application and perform a denial of service (DoS) attack.

Mitigation

Update the affected package graphviz to the latest version.

Vulnerable software versions

Ubuntu: 16.04

libxdot4 (Ubuntu package): before 2.38.012u buntu2.1+esm1

libpathplan4 (Ubuntu package): before 2.38.012u buntu2.1+esm1

libgvpr2 (Ubuntu package): before 2.38.012u buntu2.1+esm1

libgvc6-plugins-gtk (Ubuntu package): before 2.38.012u buntu2.1+esm1

libgvc6 (Ubuntu package): before 2.38.012u buntu2.1+esm1

libcgraph6 (Ubuntu package): before 2.38.012u buntu2.1+esm1

libcdt5 (Ubuntu package): before 2.38.012u buntu2.1+esm1

graphviz (Ubuntu package): before 2.38.012u buntu2.1+esm1

CPE2.3 External links

https://ubuntu.com/security/notices/USN-5264-1


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Heap-based buffer overflow

EUVDB-ID: #VU53290

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-18032

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error in lib/common/shapes.c. A remote attacker can pass specially crafted data to the application, trigger heap-based buffer overflow and perform a denial of service (DoS) attack.


Mitigation

Update the affected package graphviz to the latest version.

Vulnerable software versions

Ubuntu: 16.04

libxdot4 (Ubuntu package): before 2.38.012u buntu2.1+esm1

libpathplan4 (Ubuntu package): before 2.38.012u buntu2.1+esm1

libgvpr2 (Ubuntu package): before 2.38.012u buntu2.1+esm1

libgvc6-plugins-gtk (Ubuntu package): before 2.38.012u buntu2.1+esm1

libgvc6 (Ubuntu package): before 2.38.012u buntu2.1+esm1

libcgraph6 (Ubuntu package): before 2.38.012u buntu2.1+esm1

libcdt5 (Ubuntu package): before 2.38.012u buntu2.1+esm1

graphviz (Ubuntu package): before 2.38.012u buntu2.1+esm1

CPE2.3 External links

https://ubuntu.com/security/notices/USN-5264-1


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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