CVE-2021-3593

CVSS V2 Low 2.1 CVSS V3 Low 3.8
Description
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.
Overview
  • CVE ID
  • CVE-2021-3593
  • Assigner
  • secalert@redhat.com
  • Vulnerability Status
  • Modified
  • Published Version
  • 2021-06-15T21:15:09
  • Last Modified Date
  • 2023-03-15T00:15:10
Weakness Enumerations
CWE URL
CWE-824 http://cwe.mitre.org/data/definitions/824.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:libslirp_project:libslirp:*:*:*:*:*:*:*:* 1 OR 4.6.0
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:advanced_virtualization:*:*:* 1 OR
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:L/AC:L/Au:N/C:P/I:N/A:N
  • Access Vector
  • LOCAL
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • NONE
  • Availability Impact
  • NONE
  • Base Score
  • 2.1
  • Severity
  • LOW
  • Exploitability Score
  • 3.9
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • LOW
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • CHANGED
  • Confidentiality Impact
  • LOW
  • Availability Impact
  • NONE
  • Base Score
  • 3.8
  • Base Severity
  • LOW
  • Exploitability Score
  • 2
  • Impact Score
  • 1.4
References
Reference URL Reference Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1970487 Issue Tracking Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/04/msg00002.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/03/msg00013.html
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GCKWZWY64EHTOQMLVLTSZ4AA27EWRJMH/ Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SGPQZFVJCFGDSISFXPCQTTBBD7QZLJKI/ Mailing List Third Party Advisory
https://security.gentoo.org/glsa/202107-44 Third Party Advisory
https://security.netapp.com/advisory/ntap-20210805-0004/ Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-3593
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3593
History
Created Old Value New Value Data Type Notes
2022-05-10 06:30:05 Added to TrackCVE
2022-12-05 04:27:54 2021-06-15T21:15Z 2021-06-15T21:15:09 CVE Published Date updated
2022-12-05 04:27:54 2022-05-13T17:30:18 CVE Modified Date updated
2022-12-05 04:27:54 Analyzed Vulnerability Status updated
2023-03-15 01:10:24 2023-03-15T00:15:10 CVE Modified Date updated
2023-03-15 01:10:24 Analyzed Modified Vulnerability Status updated
2023-03-15 01:10:24 References updated