openEuler update for qemu



Risk Low
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2021-3593
CVE-2021-3592
CVE-2021-3595
CWE-ID CWE-763
Exploitation vector Local
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-debugsource
Operating systems & Components / Operating system package or component

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

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

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

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

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

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

qemu-guest-agent
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 3 vulnerabilities.

1) Release of invalid pointer or reference

EUVDB-ID: #VU54309

Risk: Low

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

CVE-ID: CVE-2021-3593

CWE-ID: CWE-763 - Release of invalid pointer or reference

Exploit availability: No

Description

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

The vulnerability exists due to invalid pointer initialization within the udp6_input() function while processing UDP packets in the SLiRP networking implementation of QEMU. A malicious guest could use this vulnerability to read host memory.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 20.03 LTS SP2

qemu-seabios: before 4.1.0-58

qemu-help: before 4.1.0-58

qemu-debugsource: before 4.1.0-58

qemu-block-rbd: before 4.1.0-58

qemu-block-ssh: before 4.1.0-58

qemu-block-iscsi: before 4.1.0-58

qemu-img: before 4.1.0-58

qemu-block-curl: before 4.1.0-58

qemu-debuginfo: before 4.1.0-58

qemu-guest-agent: before 4.1.0-58

qemu: before 4.1.0-58

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1411


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) Release of invalid pointer or reference

EUVDB-ID: #VU54308

Risk: Low

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

CVE-ID: CVE-2021-3592

CWE-ID: CWE-763 - Release of invalid pointer or reference

Exploit availability: No

Description

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

The vulnerability exists due to invalid pointer initialization within the bootp_input() function while processing UDP packets in the SLiRP networking implementation of QEMU. A malicious guest could use this flaw to leak 10 bytes of uninitialized heap memory from the host.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 20.03 LTS SP2

qemu-seabios: before 4.1.0-58

qemu-help: before 4.1.0-58

qemu-debugsource: before 4.1.0-58

qemu-block-rbd: before 4.1.0-58

qemu-block-ssh: before 4.1.0-58

qemu-block-iscsi: before 4.1.0-58

qemu-img: before 4.1.0-58

qemu-block-curl: before 4.1.0-58

qemu-debuginfo: before 4.1.0-58

qemu-guest-agent: before 4.1.0-58

qemu: before 4.1.0-58

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1411


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.

3) Release of invalid pointer or reference

EUVDB-ID: #VU54311

Risk: Low

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

CVE-ID: CVE-2021-3595

CWE-ID: CWE-763 - Release of invalid pointer or reference

Exploit availability: No

Description

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

The vulnerability exists due to invalid pointer initialization within the tftp_input() function while processing UDP packets in the SLiRP networking implementation of QEMU. A malicious guest could use this vulnerability to read host memory.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 20.03 LTS SP2

qemu-seabios: before 4.1.0-58

qemu-help: before 4.1.0-58

qemu-debugsource: before 4.1.0-58

qemu-block-rbd: before 4.1.0-58

qemu-block-ssh: before 4.1.0-58

qemu-block-iscsi: before 4.1.0-58

qemu-img: before 4.1.0-58

qemu-block-curl: before 4.1.0-58

qemu-debuginfo: before 4.1.0-58

qemu-guest-agent: before 4.1.0-58

qemu: before 4.1.0-58

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1411


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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