synced 13 MIN AGO
01 Record

CVE-2021-33194

golang.org/x/net before v0.0.0-20210520170846-37e1c6afe023 allows attackers to cause a denial of service (infinite loop) via crafted ParseFragment input.

UnratedPUBLISHEDCNA: mitre
CNA base scoreUnratedNo CNA CVSS vector

02 Description

golang.org/x/net before v0.0.0-20210520170846-37e1c6afe023 allows attackers to cause a denial of service (infinite loop) via crafted ParseFragment input.

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
7.49% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 94.4% of scored records. A rank, not a probability.
NVD base score
7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2021-05-26 14:49Z5 YR AGO
Last updated
2024-08-03 23:42Z2 YR AGO
Reserved
2021-05-19
Assigning CNA
mitre
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
  • CWE-835Loop with Unreachable Exit Condition ('Infinite Loop')Base
Data version
5.1
Document digest
36f1cd0bf4bca68e938d7ac6afa356b73138d0e31ddb2fe05d01f0934c358449

05 Affected products

VendorProductVersionsPlatforms
fedoraprojectfedoraNot specified—
golanggoNot specified—
redhatassisted_installerNot specified—
redhatceph_storageNot specified—
redhatcontainer_native_virtualizationNot specified—
redhatenterprise_linuxNot specified—
redhatloggingNot specified—
redhatopenshiftNot specified—
redhatopenshift_container_storageNot specified—
redhatopenstackNot specified—
redhatserverlessNot specified—
redhatservice_meshNot specified—
redhatstorageNot specified—

06 References

07 Fixed in

Debian 12

  • golang-golang-x-net
    Fixed in 1:0.0+git20210119.5f4716e+dfsg-4

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • golang-golang-x-net
    Fixed in 1:0.0+git20210119.5f4716e+dfsg-4

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • golang-golang-x-net
    Fixed in 1:0.0+git20210119.5f4716e+dfsg-4

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 18.04 LTS

  • lxd
    Fixed in 3.0.3-0ubuntu1~18.04.2+esm2
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 20.04 LTS

  • golang-golang-x-net-dev
    Fixed in 1:0.0+git20190811.74dc4d7+dfsg-1ubuntu0.1~esm2
    Available with Ubuntu Pro: https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.