FreeBSD : LibreSSL -- Memory leak and buffer overflow (e75a96df-73ca-11e5-9b45-b499baebfeaf)

High Nessus Plugin ID 86434

New! Vulnerability Priority Rating (VPR)

Tenable calculates a dynamic VPR for every vulnerability. VPR combines vulnerability information with threat intelligence and machine learning algorithms to predict which vulnerabilities are most likely to be exploited in attacks. Read more about what VPR is and how it's different from CVSS.

VPR Score: 5.9

Synopsis

The remote FreeBSD host is missing a security-related update.

Description

Qualys reports :

During the code review of OpenSMTPD a memory leak and buffer overflow (an off-by-one, usually stack-based) were discovered in LibreSSL's OBJ_obj2txt() function. This function is called automatically during a TLS handshake (both client-side, unless an anonymous mode is used, and server-side, if client authentication is requested).

Solution

Update the affected package.

See Also

https://marc.info/?l=openbsd-announce&m=144495690528446

http://www.nessus.org/u?c110994e

Plugin Details

Severity: High

ID: 86434

File Name: freebsd_pkg_e75a96df73ca11e59b45b499baebfeaf.nasl

Version: 2.8

Type: local

Published: 2015/10/19

Updated: 2021/01/06

Dependencies: 12634

Risk Information

Risk Factor: High

VPR Score: 5.9

CVSS v2.0

Base Score: 7.5

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

CVSS v3.0

Base Score: 9.8

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

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:libressl, cpe:/o:freebsd:freebsd

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

Patch Publication Date: 2015/10/16

Vulnerability Publication Date: 2015/10/15

Reference Information

CVE: CVE-2015-5333, CVE-2015-5334