Vulnerabilities > CVE-2020-11947 - Out-of-bounds Read vulnerability in Qemu 4.1.0
Attack vector
LOCAL Attack complexity
LOW Privileges required
LOW Confidentiality impact
LOW Integrity impact
NONE Availability impact
NONE Summary
iscsi_aio_ioctl_cb in block/iscsi.c in QEMU 4.1.0 has a heap-based buffer over-read that may disclose unrelated information from process memory to an attacker.
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Overread Buffers An adversary attacks a target by providing input that causes an application to read beyond the boundary of a defined buffer. This typically occurs when a value influencing where to start or stop reading is set to reflect positions outside of the valid memory location of the buffer. This type of attack may result in exposure of sensitive information, a system crash, or arbitrary code execution.
References
- http://www.openwall.com/lists/oss-security/2021/01/13/4
- https://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=ff0507c239a246fd7215b31c5658fc6a3ee1e4c5
- https://security.netapp.com/advisory/ntap-20210212-0001/
- http://www.openwall.com/lists/oss-security/2021/01/13/4
- https://security.netapp.com/advisory/ntap-20210212-0001/
- https://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=ff0507c239a246fd7215b31c5658fc6a3ee1e4c5