SB2018072027 - Multiple vulnerabilities in GNU LibreDWG
Published: July 20, 2018 Updated: July 17, 2020
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 secuirty vulnerabilities.
1) Double Free (CVE-ID: CVE-2018-14524)
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
dwg_decode_eed in decode.c in GNU LibreDWG before 0.6 leads to a double free (in dwg_free_eed in free.c) because it does not properly manage the obj->eed value after a free occurs.
2) NULL pointer dereference (CVE-ID: CVE-2018-14471)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error. A remote attacker can trigger denial of service conditions via a crafted dwg file.
3) Buffer overflow (CVE-ID: CVE-2018-14443)
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
get_first_owned_object in dwg.c in GNU LibreDWG 0.5.1036 allows remote attackers to cause a denial of service (SEGV).
Remediation
Install update from vendor's website.