Risk | Low |
Patch available | YES |
Number of vulnerabilities | 3 |
CVE-ID | CVE-2019-13164 CVE-2019-15034 CVE-2019-15890 |
CWE-ID | CWE-284 CWE-119 CWE-416 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
QEMU Client/Desktop applications / Virtualization software libslirp Universal components / Libraries / Libraries used by multiple products |
Vendor |
QEMU Freedesktop.org |
Security Bulletin
This security bulletin contains information about 3 vulnerabilities.
Updated: 28.04.2020
Added vulnerabilities #2-3, updated bulletin status to patched.
EUVDB-ID: #VU19054
Risk: Low
CVSSv3.1: 2.2 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2019-13164
CWE-ID:
CWE-284 - Improper Access Control
Exploit availability: No
DescriptionThe vulnerability allows a local attacker to gain unauthorized access to sensitive information.
The vulnerability exists due to qemu-bridge-helper.c does not ensure that a network interface name (obtained from bridge.conf or a --br=bridge option) is limited to the IFNAMSIZ size. A local attacker can create a tap device and attach it to a denied bridge interface, bypass the Access Control List (ACL) and get access to confidential data transmitted on the bridge.
Mitigation
Install update from vendor's website.
QEMU: 4.0.0
External linkshttp://www.openwall.com/lists/oss-security/2019/07/02/2
http://lists.gnu.org/archive/html/qemu-devel/2019-07/msg00145.html
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.
How the attacker can exploit this vulnerability?
The attacker would have to trick the victim to open a a specially crafted file.
The attacker would have to login to the system and perform certain actions in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
EUVDB-ID: #VU27386
Risk: Low
CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2019-15034
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a local user to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within the hw/display/bochs-display.c in QEMU due to application does not ensure a sufficient PCI config space allocation. A local user can trigger a buffer overflow and escalate privileges on the system.
Install updates from vendor's website.
Vulnerable software versionsQEMU: 4.0.0
External linkshttp://lists.gnu.org/archive/html/qemu-devel/2019-08/msg01959.html
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.
How the attacker can exploit this vulnerability?
The attacker would have to trick the victim to open a a specially crafted file.
The attacker would have to login to the system and perform certain actions in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
EUVDB-ID: #VU20964
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2019-15890
CWE-ID:
CWE-416 - Use After Free
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists in "ip_reass()" routine in "ip_input.c" file while reassembling incoming packets, if the first fragment is bigger than the m->m_dat[] buffer. A remote attacker can send a specially crafted packet and cause the application to crash.
Install update from vendor's website.
Vulnerable software versionslibslirp: 4.0.0
External linkshttp://www.openwall.com/lists/oss-security/2019/09/06/3
http://gitlab.freedesktop.org/slirp/libslirp/commit/c5927943
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.