Detections
Analytics
Virtuozzo 6 : kernel / kernel-abi-whitelists / kernel-debug / etc (VZLSA-2017-1486)
high Nessus Plugin ID 101484
Synopsis
The remote Virtuozzo host is missing a security update.Description
An update for kernel is now available for Red Hat Enterprise Linux 6.Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es) :
* A flaw was found in the way memory was being allocated on the stack for user space binaries. If heap (or different memory region) and stack memory regions were adjacent to each other, an attacker could use this flaw to jump over the stack guard gap, cause controlled memory corruption on process stack or the adjacent memory region, and thus increase their privileges on the system. This is a kernel-side mitigation which increases the stack guard gap size from one page to 1 MiB to make successful exploitation of this issue more difficult.
(CVE-2017-1000364, Important)
Red Hat would like to thank Qualys Research Labs for reporting this issue.
Note that Tenable Network Security has attempted to extract the preceding description block directly from the corresponding Red Hat security advisory. Virtuozzo provides no description for VZLSA advisories. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
Solution
Update the affected kernel / kernel-abi-whitelists / kernel-debug / etc package.See Also
Plugin Details
Severity: High
ID: 101484
File Name: Virtuozzo_VZLSA-2017-1486.nasl
Version: 1.13
Type: local
Family: Virtuozzo Local Security Checks
Published: 7/13/2017
Updated: 1/4/2021
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: High
Score: 7.4
CVSS v2
Risk Factor: High
Base Score: 7.2
Temporal Score: 6
Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS v3
Risk Factor: High
Base Score: 7.8
Temporal Score: 7.2
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:F/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:virtuozzo:virtuozzo:kernel, p-cpe:/a:virtuozzo:virtuozzo:kernel-abi-whitelists, p-cpe:/a:virtuozzo:virtuozzo:kernel-debug, p-cpe:/a:virtuozzo:virtuozzo:kernel-debug-devel, p-cpe:/a:virtuozzo:virtuozzo:kernel-devel, p-cpe:/a:virtuozzo:virtuozzo:kernel-doc, p-cpe:/a:virtuozzo:virtuozzo:kernel-firmware, p-cpe:/a:virtuozzo:virtuozzo:kernel-headers, p-cpe:/a:virtuozzo:virtuozzo:perf, p-cpe:/a:virtuozzo:virtuozzo:python-perf, cpe:/o:virtuozzo:virtuozzo:6
Required KB Items: Host/local_checks_enabled, Host/Virtuozzo/release, Host/Virtuozzo/rpm-list
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 6/20/2017
Exploitable With
Metasploit (rsh_stack_clash_priv_esc.rb)