Detections
Analytics
FreeBSD : FreeBSD -- Multiple vulnerabilities in ppp(8) (204af099-a0ff-11f1-ae1f-bc241121aa0a)
critical Nessus Plugin ID 340058
Language:
Synopsis
The remote FreeBSD host is missing one or more security-related updates.Description
The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the 204af099-a0ff-11f1-ae1f-bc241121aa0a advisory.ppp(8) contained three memory safety errors in its handling of multilink endpoint discriminator options.
mp_Enddisc() used incorrect length calculations when formatting endpoint discriminator addresses for display, allowing a received endpoint option to overflow a global result buffer. [CVE-2026-58095] LcpDecodeConfig() did not validate the length of received endpoint discriminator options against the minimum required by RFC 1717.
Undersized options would trigger an out-of-bounds write. [CVE-2026-58096] mp_SetEnddisc() copied a user-supplied PSN endpoint value without length validation, allowing a buffer overflow via the ppp(8) command interface. [CVE-2026-58097] A malicious PPP peer can exploit CVE-2026-58095 and CVE-2026-58096 to crash ppp(8) or potentially execute arbitrary code as root. A local user with access to the ppp(8) command interface can exploit CVE-2026-58097 similarly.
Tenable has extracted the preceding description block directly from the FreeBSD security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Update the affected packages.See Also
Plugin Details
Severity: Critical
ID: 340058
File Name: freebsd_pkg_204af099a0ff11f1ae1fbc241121aa0a.nasl
Version: 1.2
Type: Local
Family: FreeBSD Local Security Checks
Published: 8/26/2026
Updated: 8/27/2026
Configuration: Enable paranoid mode
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.9
Percentile: 58.17
CVSS v2
Risk Factor: High
Base Score: 7.2
Temporal Score: 5.3
Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2026-58097
CVSS v3
Risk Factor: Critical
Base Score: 9.8
Temporal Score: 8.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
CVSS Score Source: CVE-2026-58096
Vulnerability Information
CPE: cpe:/o:freebsd:freebsd, p-cpe:/a:freebsd:freebsd:freebsd-kernel
Required KB Items: Host/local_checks_enabled, Settings/ParanoidReport, Host/FreeBSD/release, Host/FreeBSD/pkg_info
Exploit Ease: No known exploits are available
Patch Publication Date: 8/26/2026
Vulnerability Publication Date: 8/26/2026