Vulnerabilities > CVE-2020-10756 - Out-of-bounds Read vulnerability in multiple products
Attack vector
LOCAL Attack complexity
LOW Privileges required
LOW Confidentiality impact
HIGH Integrity impact
NONE Availability impact
NONE Summary
An out-of-bounds read vulnerability was found in the SLiRP networking implementation of the QEMU emulator. This flaw occurs in the icmp6_send_echoreply() routine while replying to an ICMP echo request, also known as ping. This flaw allows a malicious guest to leak the contents of the host memory, resulting in possible information disclosure. This flaw affects versions of libslirp before 4.3.1.
Vulnerable Configurations
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
- https://bugzilla.redhat.com/show_bug.cgi?id=1835986
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00035.html
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00040.html
- https://www.debian.org/security/2020/dsa-4728
- https://lists.debian.org/debian-lts-announce/2020/07/msg00020.html
- https://usn.ubuntu.com/4437-1/
- https://www.zerodayinitiative.com/advisories/ZDI-20-1005/
- https://usn.ubuntu.com/4467-1/
- https://security.netapp.com/advisory/ntap-20201001-0001/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JYTZ32P67PZER6P7TW6FQK3SZRKQLVEI/