CVE-2018-1000654
libtasn1: Infinite loop in _asn1_expand_object_id(ptree) leads to memory exhaustion
Severity
LowRed Hat Product Security
CVSS 3.0
Review impact separately from score.
Published · August 12, 2018
Updated · June 27, 2026
Description
A vulnerability was found in GNU Libtasn1, where a resource management issue can lead to a denial of service, here an attacker could exploit this flaw by persuading a victim to parse a specially crafted file, exhausting all available CPU resources.
Statement
This vulnerability is rated as low severity because it causes a denial of service by exhausting CPU resources, it impacts availability, it does not compromise system security or integrity.
This flaw is in the asn1Parser binary included in libtasn1-tools RPM. The dynamic library libtasn1 and libtasn1-devel RPMs are not affected.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.0 · 4CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CWE-835 · Loop with Unreachable Exit Condition ('Infinite Loop')