Red Hat update for qemu-kvm-rhev

Published: 2019-11-07
Severity Medium
Patch available YES
Number of vulnerabilities 2
CVE ID CVE-2019-12155
CVE-2019-14378
CWE ID CWE-476
CWE-122
Exploitation vector Network
Public exploit N/A
Vulnerable software Red Hat OpenStack for IBM Power Subscribe
Red Hat OpenStack
Vendor Red Hat Inc.

Security Advisory

1) NULL pointer dereference

Severity: Medium

CVSSv3: 5.7 [CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2019-12155

CWE-ID: CWE-476 - NULL Pointer Dereference

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error in "hw/display/qxl.c". A remote attacker can perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat OpenStack for IBM Power: 13.0

Red Hat OpenStack: 13.0

CPE External links

https://access.redhat.com/errata/RHSA-2019:3787

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.

2) Heap-based buffer overflow

Severity: Medium

CVSSv3: 6.9 [CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C] [PCI]

CVE-ID: CVE-2019-14378

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error within the ip_reass() function in ip_input.c in libslirp. A remote authenticated attacker can send a large packet, trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat OpenStack for IBM Power: 13.0

Red Hat OpenStack: 13.0

CPE External links

https://access.redhat.com/errata/RHSA-2019:3787

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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