Red Hat update for Red Hat Enterprise MRG Realtime 2.5



Risk Medium
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2018-5332
CVE-2018-5333
CWE-ID CWE-787
CWE-476
Exploitation vector Network
Public exploit Public exploit code for vulnerability #2 is available.
Vulnerable software
 MRG Realtime
Server applications / Application servers

Vendor Red Hat Inc.

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Heap out-of-bounds write

EUVDB-ID: #VU10002

Risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-5332

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a local attacker to  cause DoS condition on the target system.

The weakness exists in the rds_message_alloc_sgs() function due to improper validation of DMA page allocation values. A local attacker can trigger a heap-based out-of-bounds write and cause the system to crash.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

MRG Realtime: 2

CPE2.3 External links

https://access.redhat.com/errata/RHSA-2018:0470


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Null pointer dereference

EUVDB-ID: #VU10001

Risk: Medium

CVSSv4.0: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:A/U:Green]

CVE-ID: CVE-2018-5333

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists in the rds_cmsg_atomic function due to insufficient handling of user-supplied input. A remote attacker can send a specially crafted HTTP request, trigger NULL pointer dereference and cause the system to crash.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

MRG Realtime: 2

CPE2.3 External links

https://access.redhat.com/errata/RHSA-2018:0470


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, a fully functional exploit for this vulnerability is available.



###SIDEBAR###