Huawei EulerOS: Security Advisory for qemu (EulerOS-SA-2021-1632)

Published: 2021-03-12 07:24:14
CVE Author: NIST National Vulnerability Database

CVSS Base Vector:
AV:N/AC:M/Au:N/C:P/I:P/A:P

Summary:
The remote host is missing an update for the Huawei EulerOS 'qemu' Linux Distribution Package(s) announced via the EulerOS-SA-2021-1632 advisory.

Detection Method:
Checks if a vulnerable Linux Distribution Package version is present on the target host.

Technical Details:
In QEMU through 5.0.0, an integer overflow was found in the SM501 display driver implementation. This flaw occurs in the COPY_AREA macro while handling MMIO write operations through the sm501_2d_engine_write() callback. A local attacker could abuse this flaw to crash the QEMU process in sm501_2d_operation() in hw/display/sm501.c on the host, resulting in a denial of service.CVE-2020-12829 slirp.c in libslirp through 4.3.1 has a buffer over-read because it tries to read a certain amount of header data even if that exceeds the total packet length.(CVE-2020-29130) ncsi.c in libslirp through 4.3.1 has a buffer over-read because it tries to read a certain amount of header data even if that exceeds the total packet length.(CVE-2020-29129) hw/net/e1000e_core.c in QEMU 5.0.0 has an infinite loop via an RX descriptor with a NULL buffer address.(CVE-2020-28916) ati_2d_blt in hw/display/ati_2d.c in QEMU 4.2.1 can encounter an outside-limits situation in a calculation. A guest can crash the QEMU process.(CVE-2020-27616) eth_get_gso_type in net/eth.c in QEMU 4.2.1 allows guest OS users to trigger an assertion failure. A guest can crash the QEMU process via packet data that lacks a valid Layer 3 protocol.(CVE-2020-27617) A reachable assertion issue was found in the USB EHCI emulation code of QEMU. It could occur while processing USB requests due to missing handling of DMA memory map failure. A malicious privileged user within the guest may abuse this flaw to send bogus USB requests and crash the QEMU process on the host, resulting in a denial of service.(CVE-2020-25723) hw/usb/hcd-ohci.c in QEMU 5.0.0 has a stack-based buffer over-read via values obtained from the host controller driver.(CVE-2020-25624) hw/usb/hcd-ohci.c in QEMU 5.0.0 has an infinite loop when a TD list has a loop.(CVE-2020-25625) In libslirp 4.1.0, as used in QEMU 4.2.0, tcp_subr.c misuses snprintf return values, leading to a buffer overflow in later code.(CVE-2020-8608) tcp_emu in tcp_subr.c in libslirp 4.1.0, as used in QEMU 4.2.0, mismanages memory, as demonstrated by IRC DCC commands in EMU_IRC. This can cause a heap-based buffer overflow or other out-of-bounds access which can lead to a DoS or potential execute arbitrary code.(CVE-2020-7039) ip_reass in ip_input.c in libslirp 4.0.0 has a heap-based buffer overflow via a large packet because it mishandles a case involving the first fragment.(CVE-2019-14378) A flaw was found in the memory management API of QEMU during the initialization of a memory region cache. This issue could lead to an out-of-bounds write access to the MSI-X table while performing M ... Description truncated. Please see the references for more information.

Affected Versions:
'qemu' Linux Distribution Package(s) on Huawei EulerOS Virtualization release 2.9.1.

Recommendations:
Please install the updated Linux Distribution Package(s).

Solution Type:
Vendor Patch

Detection Type:
Linux Distribution Package

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2018-12617
https://nvd.nist.gov/vuln/detail/CVE-2019-14378
https://nvd.nist.gov/vuln/detail/CVE-2019-15890
https://nvd.nist.gov/vuln/detail/CVE-2019-20175
https://nvd.nist.gov/vuln/detail/CVE-2019-20382
https://nvd.nist.gov/vuln/detail/CVE-2020-10702
https://nvd.nist.gov/vuln/detail/CVE-2020-10756
https://nvd.nist.gov/vuln/detail/CVE-2020-11869
https://nvd.nist.gov/vuln/detail/CVE-2020-12829
https://nvd.nist.gov/vuln/detail/CVE-2020-13253
https://nvd.nist.gov/vuln/detail/CVE-2020-13361
https://nvd.nist.gov/vuln/detail/CVE-2020-13362
https://nvd.nist.gov/vuln/detail/CVE-2020-13659
https://nvd.nist.gov/vuln/detail/CVE-2020-13765
https://nvd.nist.gov/vuln/detail/CVE-2020-13791
https://nvd.nist.gov/vuln/detail/CVE-2020-13800
https://nvd.nist.gov/vuln/detail/CVE-2020-15863
https://nvd.nist.gov/vuln/detail/CVE-2020-16092
https://nvd.nist.gov/vuln/detail/CVE-2020-1711
https://nvd.nist.gov/vuln/detail/CVE-2020-1983
https://nvd.nist.gov/vuln/detail/CVE-2020-25624
https://nvd.nist.gov/vuln/detail/CVE-2020-25625
https://nvd.nist.gov/vuln/detail/CVE-2020-25723
https://nvd.nist.gov/vuln/detail/CVE-2020-27616
https://nvd.nist.gov/vuln/detail/CVE-2020-27617
https://nvd.nist.gov/vuln/detail/CVE-2020-27821
https://nvd.nist.gov/vuln/detail/CVE-2020-28916
https://nvd.nist.gov/vuln/detail/CVE-2020-29129
https://nvd.nist.gov/vuln/detail/CVE-2020-29130
https://nvd.nist.gov/vuln/detail/CVE-2020-7039
https://nvd.nist.gov/vuln/detail/CVE-2020-7211
https://nvd.nist.gov/vuln/detail/CVE-2020-8608

References:


https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2021-1632

Severity
Medium
CVSS Score
6.8
Published
2021-03-12
Modified
2021-03-12
Category
Huawei EulerOS Local Security Checks

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