CVE-2019-5020: An exploitable denial of service vulnerability exists in the object lookup functionality of Yara 3.8.1. A specially crafted binary file can cause a negative…

PriorityP418medium5.5CVSS 3.1

AVLACLPRNUIRSUCNINAH

EPSS

1.08%

61.3th percentile

An exploitable denial of service vulnerability exists in the object lookup functionality of Yara 3.8.1. A specially crafted binary file can cause a negative value to be read to satisfy an assert, resulting in Denial of Service. An attacker can create a malicious binary to trigger this vulnerability.

Affected

6 ranges

Vendor	Product	Version range	Fixed in
debian	yara	< yara 3.9.0-1 (bookworm)	yara 3.9.0-1 (bookworm)
virustotal	yara	—	—
virustotal	yara	>= 0 < 3.9.0-1	3.9.0-1
virustotal	yara	>= 0 < 3.9.0-1	3.9.0-1
virustotal	yara	>= 0 < 3.9.0-1	3.9.0-1
virustotal	yara	>= 0 < 3.9.0-1	3.9.0-1

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

nvdv3.06.5MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

nvdv2.04.3MEDIUMAV:N/AC:M/Au:N/C:N/I:N/A:P

osv5.5MEDIUM

vendor_debian5.5MEDIUM

Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.