CVE-2021-3592

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 bootp_input() function and could occur while processing a udp packet that is smaller than the size of the 'bootp_t' structure. A malicious guest could use this flaw to leak 10 bytes of uninitialized heap memory from the host. The highest threat from this vulnerability is to data confidentiality. This flaw affects libslirp versions prior to 4.6.0.
Overview
  • CVE ID
  • CVE-2021-3592
  • 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:debian:debian_linux:9.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* 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=1970484 Issue Tracking Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/09/msg00000.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/09/msg00004.html 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-2021-3592
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3592
History
Created Old Value New Value Data Type Notes
2022-05-10 06:54:14 Added to TrackCVE
2022-12-05 04:27:50 2021-06-15T21:15Z 2021-06-15T21:15:09 CVE Published Date updated
2022-12-05 04:27:50 2021-09-21T18:04:54 CVE Modified Date updated
2022-12-05 04:27:50 Analyzed Vulnerability Status updated
2023-03-15 01:10:23 2023-03-15T00:15:10 CVE Modified Date updated
2023-03-15 01:10:23 Analyzed Modified Vulnerability Status updated
2023-03-15 01:10:24 References updated