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[email protected]CVE-2021-3593

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

CVE-2021-3593

2021-06-1521:15:09

CWE-824

[email protected]

web.nvd.nist.gov

296

cve-2021-3593

qemu

slirp

networking

vulnerability

data confidentiality

nvd

libslirp

2.1 Low

CVSS2

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

3.8 Low

CVSS3

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

5 Medium

AI Score

Confidence

Low

0.0005 Low

EPSS

Percentile

16.5%

JSON

An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the udp6_input() function and could occur while processing a udp packet that is smaller than the size of the ‘udphdr’ 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"
      }
    ]
  }
]