openEuler 22.03 LTS SP1 update for qemu
Security Bulletin
This security bulletin contains information about 3 vulnerabilities.
1) Use-after-free
EUVDB-ID: #VU85734
Risk: Low
CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2023-3019
CWE-ID:
CWE-416 - Use After Free
Exploit availability: No
DescriptionThe vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a use-after-free error within the e1000e_write_packet_to_guest() function in the e1000e NIC emulation code in QEMU. A local user can trigger DMA reentrancy and crash the QEMU process on the host.
MitigationInstall updates from vendor's repository.
Vulnerable software versionsopenEuler: 22.03 LTS SP1
qemu-seabios: before 6.2.0-89
qemu-help: before 6.2.0-89
qemu-system-x86_64: before 6.2.0-89
qemu-block-iscsi: before 6.2.0-89
qemu-img: before 6.2.0-89
qemu-system-riscv: before 6.2.0-89
qemu-block-curl: before 6.2.0-89
qemu-debuginfo: before 6.2.0-89
qemu-block-rbd: before 6.2.0-89
qemu-block-ssh: before 6.2.0-89
qemu-debugsource: before 6.2.0-89
qemu-guest-agent: before 6.2.0-89
qemu-system-aarch64: before 6.2.0-89
qemu-system-arm: before 6.2.0-89
qemu-hw-usb-host: before 6.2.0-89
qemu: before 6.2.0-89
External linkshttp://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2024-1312
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: #VU87738
Risk: Medium
CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2023-6683
CWE-ID:
CWE-476 - NULL Pointer Dereference
Exploit availability: No
DescriptionThe vulnerability allows a remote user to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error when processing ClientCutText messages within the QEMU built-in VNC server. A remote authenticated VNC client can pass specially crafted data to the application and perform a denial of service (DoS) attack.
MitigationInstall updates from vendor's repository.
Vulnerable software versionsopenEuler: 22.03 LTS SP1
qemu-seabios: before 6.2.0-89
qemu-help: before 6.2.0-89
qemu-system-x86_64: before 6.2.0-89
qemu-block-iscsi: before 6.2.0-89
qemu-img: before 6.2.0-89
qemu-system-riscv: before 6.2.0-89
qemu-block-curl: before 6.2.0-89
qemu-debuginfo: before 6.2.0-89
qemu-block-rbd: before 6.2.0-89
qemu-block-ssh: before 6.2.0-89
qemu-debugsource: before 6.2.0-89
qemu-guest-agent: before 6.2.0-89
qemu-system-aarch64: before 6.2.0-89
qemu-system-arm: before 6.2.0-89
qemu-hw-usb-host: before 6.2.0-89
qemu: before 6.2.0-89
External linkshttp://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2024-1312
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.
3) Stack-based buffer overflow
EUVDB-ID: #VU87161
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-2023-6693
CWE-ID:
CWE-121 - Stack-based buffer overflow
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error when flushing TX in the virtio_net_flush_tx() function if guest features
VIRTIO_NET_F_HASH_REPORT, VIRTIO_F_VERSION_1 and VIRTIO_NET_F_MRG_RXBUF
are enabled. A local user can trigger a stack based buffer overflow and execute arbitrary code on the system.
Install updates from vendor's repository.
Vulnerable software versionsopenEuler: 22.03 LTS SP1
qemu-seabios: before 6.2.0-89
qemu-help: before 6.2.0-89
qemu-system-x86_64: before 6.2.0-89
qemu-block-iscsi: before 6.2.0-89
qemu-img: before 6.2.0-89
qemu-system-riscv: before 6.2.0-89
qemu-block-curl: before 6.2.0-89
qemu-debuginfo: before 6.2.0-89
qemu-block-rbd: before 6.2.0-89
qemu-block-ssh: before 6.2.0-89
qemu-debugsource: before 6.2.0-89
qemu-guest-agent: before 6.2.0-89
qemu-system-aarch64: before 6.2.0-89
qemu-system-arm: before 6.2.0-89
qemu-hw-usb-host: before 6.2.0-89
qemu: before 6.2.0-89
External linkshttp://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2024-1312
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.
