SB2022020343 - Ubuntu update for graphviz

Description

This security bulletin contains information about 3 vulnerabilities.

1) NULL pointer dereference (CVE-ID: CVE-2018-10196)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: 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

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.

2) NULL pointer dereference (CVE-ID: CVE-2019-11023)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: 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

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.

3) Heap-based buffer overflow (CVE-ID: CVE-2020-18032)

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

CVSSv4: 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

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.

Remediation

Install update from vendor's website.

References

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