GLSA-200710-01 : RPCSEC_GSS library: Buffer overflow
critical Nessus Plugin ID 26941
New! Plugin Severity Now Using CVSS v3
The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.
Synopsis
The remote Gentoo host is missing one or more security-related patches.Description
The remote host is affected by the vulnerability described in GLSA-200710-01 (RPCSEC_GSS library: Buffer overflow)A stack based buffer overflow has been discovered in the svcauth_gss_validate() function in file lib/rpc/svc_auth_gss.c when processing an overly long string in a RPC message.
Impact :
A remote attacker could send a specially crafted RPC request to an application relying on this library, e.g NFSv4 or Kerberos (GLSA-200709-01), resulting in the execution of arbitrary code with the privileges of the user running the application.
Workaround :
There is no known workaround at this time.
Solution
All librpcsecgss users should upgrade to the latest version:# emerge --sync # emerge --ask --oneshot --verbose '>=net-libs/librpcsecgss-0.16'
See Also
https://security.gentoo.org/glsa/200709-01
Plugin Details
Severity: Critical
ID: 26941
File Name: gentoo_GLSA-200710-01.nasl
Version: 1.24
Type: local
Family: Gentoo Local Security Checks
Published: 10/9/2007
Updated: 1/6/2021
Dependencies: ssh_get_info.nasl
Risk Information
VPR
Risk Factor: Medium
Score: 5.9
CVSS v2
Risk Factor: Critical
Base Score: 10
Temporal Score: 7.4
Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C
Temporal Vector: E:U/RL:OF/RC:C
Vulnerability Information
CPE: p-cpe:/a:gentoo:linux:librpcsecgss, cpe:/o:gentoo:linux
Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list
Exploit Ease: No known exploits are available
Patch Publication Date: 10/4/2007
Reference Information
CVE: CVE-2007-3999