FreeBSD : rubygem-uri -- ReDoS vulnerability (9b60bba1-cf18-11ed-bd44-080027f5fec9)

medium Nessus Plugin ID 173719



The remote FreeBSD host is missing one or more security-related updates.


The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the 9b60bba1-cf18-11ed-bd44-080027f5fec9 advisory.

- Dominic Couture reports: A ReDoS issue was discovered in the URI component. The URI parser mishandles invalid URLs that have specific characters. It causes an increase in execution time for parsing strings to URI objects. (CVE-2023-28755)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.


Update the affected packages.

See Also

Plugin Details

Severity: Medium

ID: 173719

File Name: freebsd_pkg_9b60bba1cf1811edbd44080027f5fec9.nasl

Version: 1.3

Type: local

Published: 3/30/2023

Updated: 5/31/2023

Risk Information


Risk Factor: Low

Score: 2.2


Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS Score Source: CVE-2023-28755


Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:ruby, p-cpe:/a:freebsd:freebsd:ruby27, p-cpe:/a:freebsd:freebsd:ruby30, p-cpe:/a:freebsd:freebsd:ruby31, p-cpe:/a:freebsd:freebsd:ruby32, p-cpe:/a:freebsd:freebsd:rubygem-uri, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Exploit Ease: No known exploits are available

Patch Publication Date: 3/30/2023

Vulnerability Publication Date: 3/30/2023

Reference Information

CVE: CVE-2023-28755