CVE-2020-1711

Advisory lineage Upstream: 0 Downstream: 26
Modified
Published: 11 Feb 2020, 19:42
Last modified:04 Aug 2024, 06:46

Vulnerability Summary

Overall Risk (default)
medium
31/100
CVSS Score
7.7 HIGH
v3.1 (cve.org)
EPSS Score
0.56% LOW
1% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

11 Feb 2020, 19:42
Published
Vulnerability first disclosed
04 Aug 2024, 06:46
Last Modified
Vulnerability information updated

Description

An out-of-bounds heap buffer access flaw was found in the way the iSCSI Block driver in QEMU versions 2.12.0 before 4.2.1 handled a response coming from an iSCSI server while checking the status of a Logical Address Block (LBA) in an iscsi_co_block_status() routine. A remote user could use this flaw to crash the QEMU process, resulting in a denial of service or potential execution of arbitrary code with privileges of the QEMU process on the host.

CVSS Metrics

  • v3.1•HIGH•Score: 7.7CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:H
  • v3.1•MEDIUM•Score: 6CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L
  • v2.0•MEDIUM•Score: 6AV:N/AC:M/Au:S/C:P/I:P/A:P

EPSS Trends

Current EPSS score: 0.56%• Percentile: 69%

Techniques & Countermeasures

  • CWE-787•Out-of-bounds Write

    The product writes data past the end, or before the beginning, of the intended buffer.

  • CWE-122•Heap-based Buffer Overflow

    A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

Affected Systems

  • debian•debian_linux

    8.0 | 9.0

  • opensuse•leap

    15.1

  • qemu•qemu

    ≥ 2.12.0, < 4.2.1

  • red hat•qemu

    All qemu versions 2.12.0 before 4.2.1

  • redhat•enterprise_linux

    7.0 | 8.0

  • redhat•openstack

    10 | 13

References (12)