CVE-2017-2630: qemu Stack-based Buffer Overflow

Vulnerability summary

CVE-2017-2630 is a high (CVSS 8.8) Stack-based Buffer Overflow vulnerability in qemu. EPSS estimates a 2.65% chance of exploitation in the next 30 days, higher than 85.6% of scored vulnerabilities.

Timeline

1. 27-07-2018
   PublishedVulnerability first disclosed.
2. 05-08-2024
   Last modifiedVulnerability information updated.

Description

A stack buffer overflow flaw was found in the Quick Emulator (QEMU) before 2.9 built with the Network Block Device (NBD) client support. The flaw could occur while processing server's response to a 'NBD_OPT_LIST' request. A malicious NBD server could use this issue to crash a remote NBD client resulting in DoS or potentially execute arbitrary code on client host with privileges of the QEMU process.

• CWE-121Stack-based Buffer OverflowThe product writes past the end of a buffer that was allocated on the stack.
• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferThe product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary.