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[email protected]CVE-2021-3595

HistoryJun 15, 2021 - 9:15 p.m.

CVE-2021-3595

2021-06-1521:15:10

CWE-824

[email protected]

web.nvd.nist.gov

236

cve-2021-3595

qemu

slirp

networking

out-of-bounds access

memory disclosure

data confidentiality

nvd

vulnerability

CVSS2

2.1

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:L/AC:L/Au:N/C:P/I:N/A:N

CVSS3

3.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N

AI Score

5.2

Confidence

Low

EPSS

0.001

Percentile

16.3%

JSON

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.

Affected configurations

Vulners

NVD

Node

qemuqemuRange≤4.6.0

VendorProductVersionCPE
qemuqemu*cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
qemu	qemu	*	cpe:2.3:a:qemu:qemu::::::::

CNA Affected

[
  {
    "vendor": "n/a",
    "product": "QEMU",
    "versions": [
      {
        "version": "libslirp 4.6.0",
        "status": "affected"
      }
    ]
  }
]