Vulnerability CVE-2021-3595


Published: 2021-06-15

Description:
An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the tftp_input() function and could occur while processing a udp packet that is smaller than the size of the 'tftp_t' structure. This issue may lead to out-of-bounds read access or indirect host memory disclosure to the guest. The highest threat from this vulnerability is to data confidentiality. This flaw affects libslirp versions prior to 4.6.0.

Type:

CWE-824

(Access of Uninitialized Pointer)

CVSS2 => (AV:L/AC:L/Au:N/C:P/I:N/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
2.1/10
2.9/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
None
None
Affected software
Redhat -> Enterprise linux 
Libslirp project -> Libslirp 

 References:
https://bugzilla.redhat.com/show_bug.cgi?id=1970489

Copyright 2024, cxsecurity.com

 

Back to Top