openEuler 20.03 LTS SP1 update for qemu



Risk Low
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2020-13791
CVE-2020-24165
CWE-ID CWE-125
CWE-20
Exploitation vector Local network
Public exploit N/A
Vulnerable software
openEuler
Operating systems & Components / Operating system

qemu-seabios
Operating systems & Components / Operating system package or component

qemu-help
Operating systems & Components / Operating system package or component

qemu-block-ssh
Operating systems & Components / Operating system package or component

qemu-img
Operating systems & Components / Operating system package or component

qemu-guest-agent
Operating systems & Components / Operating system package or component

qemu-block-curl
Operating systems & Components / Operating system package or component

qemu-debugsource
Operating systems & Components / Operating system package or component

qemu-block-rbd
Operating systems & Components / Operating system package or component

qemu-debuginfo
Operating systems & Components / Operating system package or component

qemu-block-iscsi
Operating systems & Components / Operating system package or component

qemu
Operating systems & Components / Operating system package or component

Vendor openEuler

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Out-of-bounds read

EUVDB-ID: #VU31807

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2020-13791

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in hw/pci/pci.c. A local user on the guest operating system can trigger out-of-bounds read error by providing an address near the end of the PCI configuration space and read contents of memory on the system.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1

qemu-seabios: before 4.1.0-76

qemu-help: before 4.1.0-76

qemu-block-ssh: before 4.1.0-76

qemu-img: before 4.1.0-76

qemu-guest-agent: before 4.1.0-76

qemu-block-curl: before 4.1.0-76

qemu-debugsource: before 4.1.0-76

qemu-block-rbd: before 4.1.0-76

qemu-debuginfo: before 4.1.0-76

qemu-block-iscsi: before 4.1.0-76

qemu: before 4.1.0-76

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1654


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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

2) Input validation error

EUVDB-ID: #VU85832

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2020-24165

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to insufficient validation of user-supplied input in TCG Accelerator. A local user can escalate privileges on the system.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1

qemu-seabios: before 4.1.0-76

qemu-help: before 4.1.0-76

qemu-block-ssh: before 4.1.0-76

qemu-img: before 4.1.0-76

qemu-guest-agent: before 4.1.0-76

qemu-block-curl: before 4.1.0-76

qemu-debugsource: before 4.1.0-76

qemu-block-rbd: before 4.1.0-76

qemu-debuginfo: before 4.1.0-76

qemu-block-iscsi: before 4.1.0-76

qemu: before 4.1.0-76

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1654


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.



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