Detections
Analytics
Virtuozzo 6 : parallels-server-bm-release / etc (VZA-2018-017)
critical Nessus Plugin ID 108596
Synopsis
The remote Virtuozzo host is missing multiple security updates.Description
According to the versions of the parallels-server-bm-release / etc packages installed, the Virtuozzo installation on the remote host is affected by the following vulnerabilities :- In the Linux kernel through 4.14.13, the rds_message_alloc_sgs() function does not validate a value that is used during DMA page allocation, leading to a heap-based out-of-bounds write (related to the rds_rdma_extra_size() function in 'net/rds/rdma.c') and thus to a system panic.
- The rds_cmsg_atomic() function in 'net/rds/rdma.c' mishandles cases where page pinning fails or an invalid address is supplied by a user. This can lead to a NULL pointer dereference in rds_atomic_free_op() and thus to a system panic.
- The tcpmss_mangle_packet function in net/netfilter/xt_TCPMSS.c allows remote attackers to cause a denial of service (use-after-free and memory corruption) or possibly have unspecified other impact by leveraging the presence of xt_TCPMSS in an iptables action.
Note that Tenable Network Security has extracted the preceding description block directly from the Virtuozzo security advisory.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
Solution
Update the affected parallels-server-bm-release / etc packages.See Also
https://help.virtuozzo.com/customer/portal/articles/2930690
https://access.redhat.com/errata/RHBA-2018:0513
Plugin Details
Severity: Critical
ID: 108596
File Name: Virtuozzo_VZA-2018-017.nasl
Version: 1.9
Type: local
Family: Virtuozzo Local Security Checks
Published: 3/27/2018
Updated: 1/4/2021
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.7
CVSS v2
Risk Factor: Critical
Base Score: 10
Temporal Score: 7.4
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
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
Vulnerability Information
CPE: p-cpe:/a:virtuozzo:virtuozzo:pstorage-libs-shared, p-cpe:/a:virtuozzo:virtuozzo:pstorage-chunk-server, p-cpe:/a:virtuozzo:virtuozzo:pstorage-iscsi, p-cpe:/a:virtuozzo:virtuozzo:vzkernel-devel, p-cpe:/a:virtuozzo:virtuozzo:vzmodules, p-cpe:/a:virtuozzo:virtuozzo:vzkernel-firmware, p-cpe:/a:virtuozzo:virtuozzo:vzmodules-devel, p-cpe:/a:virtuozzo:virtuozzo:pstorage-ctl, p-cpe:/a:virtuozzo:virtuozzo:pstorage-client, p-cpe:/a:virtuozzo:virtuozzo:pstorage-metadata-server, p-cpe:/a:virtuozzo:virtuozzo:parallels-server-bm-release, p-cpe:/a:virtuozzo:virtuozzo:vzkernel, 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: 3/26/2018
Exploitable With
Metasploit (Reliable Datagram Sockets (RDS) rds_atomic_free_op NULL pointer dereference Privilege Escalation)