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Fencer Vulns
high 7.5

CVE-2019-3833 in the critical feed json

Openwsman, versions up to and including 2.6.9, are vulnerable to infinite loop in process_connection() when parsing specially crafted HTTP…

published 2019-03-14 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-13453

cvss
7.5
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
15.2%
EPSS 15.2% chance of exploitation in 30 days, percentile 96%
public exploits
0
none known

Summary

Openwsman, versions up to and including 2.6.9, are vulnerable to infinite loop in process_connection() when parsing specially crafted HTTP requests. A remote, unauthenticated attacker can exploit this vulnerability by sending malicious HTTP request to cause denial of service to openwsman server.

Patch / fix

  • openwsman RHEL 8 2.6.5-7.el8
  • libwsman1 RHEL 8 2.6.5-7.el8
  • openwsman-client RHEL 8 2.6.5-7.el8
  • openwsman-server RHEL 8 2.6.5-7.el8
  • openwsman-python3 RHEL 8 2.6.5-7.el8
  • openwsman RHEL 7 2.6.3-7.git4391e5c.el7
  • libwsman1 RHEL 7 2.6.3-7.git4391e5c.el7
  • openwsman-perl RHEL 7 2.6.3-7.git4391e5c.el7

red hat advisories RHSA-2020:4689RHSA-2020:3940

  • openwsman SLES for SAP 12 SP4, SLES for SAP 12 SP3, SLES 12 SP4 +5 more 2.4.11-21.8.1
  • openwsman SLE Module for Server Applications 15 2.6.7-3.3.1
  • openwsman SLES for SAP 11 SP4, SLES 11 SP4, SLE Software Development Kit 11 SP4 2.2.3-0.16.8.1

suse advisories SUSE-SU-2019:0656-1SUSE-SU-2019:0654-1SUSE-SU-2019:13981-1

  • openwsman openSUSE Leap 15.0 2.6.7-lp150.2.3.1

opensuse advisories openSUSE-SU-2019:1111-1

  • libwsman1 AlmaLinux 8 2.6.5-7.el8
  • openwsman-client AlmaLinux 8 2.6.5-7.el8
  • openwsman-server AlmaLinux 8 2.6.5-7.el8
  • openwsman-python3 AlmaLinux 8 2.6.5-7.el8

almalinux advisories ALSA-2020:4689

  • openwsman Rocky Linux 8 2.6.5-7.el8_3

rocky linux advisories RLSA-2020:4689

  • openwsman CBL-Mariner 2.0, Azure Linux 3.0 2.6.8-13

azure linux advisories AZL-36970AZL-37152

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2019-3833 updated cvss 7.5

openwsman: Infinite loop in process_connection() allows denial of service

  • Red Hat Enterprise Linux 6 libwsman1, openwsman-perl, openwsman-ruby, openwsman-client, openwsman-python, openwsman-server Red Hat OpenStack Platform 8 (Liberty) Director openwsman-python Red Hat OpenStack Platform 9 (Mitaka) Director openwsman-python
    affected: no fix planned “Will not fix”
  • Red Hat CodeReady Linux Builder (v. 8) libwsman-devel 2.6.5-7.el8, libwsman1-debuginfo 2.6.5-7.el8, openwsman-debuginfo 2.6.5-7.el8, openwsman-debugsource 2.6.5-7.el8, openwsman-perl-debuginfo 2.6.5-7.el8, openwsman-client-debuginfo 2.6.5-7.el8, +3 more Red Hat Enterprise Linux AppStream (v. 8) libwsman1 2.6.5-7.el8, openwsman 2.6.5-7.el8, openwsman-client 2.6.5-7.el8, openwsman-server 2.6.5-7.el8, openwsman-python3 2.6.5-7.el8
    fixed: vendor fix RHSA-2020:4689
  • Red Hat Enterprise Linux Client (v. 7) libwsman1 2.6.3-7.git4391e5c.el7, openwsman 2.6.3-7.git4391e5c.el7, openwsman-client 2.6.3-7.git4391e5c.el7, openwsman-server 2.6.3-7.git4391e5c.el7 Red Hat Enterprise Linux Client Optional (v. 7) openwsman-perl 2.6.3-7.git4391e5c.el7, openwsman-ruby 2.6.3-7.git4391e5c.el7, openwsman-python 2.6.3-7.git4391e5c.el7 Red Hat Enterprise Linux ComputeNode (v. 7) libwsman1 2.6.3-7.git4391e5c.el7, openwsman 2.6.3-7.git4391e5c.el7, openwsman-client 2.6.3-7.git4391e5c.el7, openwsman-python 2.6.3-7.git4391e5c.el7, openwsman-server 2.6.3-7.git4391e5c.el7 Red Hat Enterprise Linux ComputeNode Optional (v. 7) openwsman-perl 2.6.3-7.git4391e5c.el7, openwsman-ruby 2.6.3-7.git4391e5c.el7 Red Hat Enterprise Linux Server (v. 7) libwsman1 2.6.3-7.git4391e5c.el7, openwsman 2.6.3-7.git4391e5c.el7, openwsman-client 2.6.3-7.git4391e5c.el7, openwsman-python 2.6.3-7.git4391e5c.el7, openwsman-server 2.6.3-7.git4391e5c.el7 Red Hat Enterprise Linux Server Optional (v. 7) openwsman-perl 2.6.3-7.git4391e5c.el7, openwsman-ruby 2.6.3-7.git4391e5c.el7
    +2 more products
    Red Hat Enterprise Linux Workstation (v. 7) libwsman1 2.6.3-7.git4391e5c.el7, openwsman 2.6.3-7.git4391e5c.el7, openwsman-client 2.6.3-7.git4391e5c.el7, openwsman-python 2.6.3-7.git4391e5c.el7, openwsman-server 2.6.3-7.git4391e5c.el7 Red Hat Enterprise Linux Workstation Optional (v. 7) openwsman-perl 2.6.3-7.git4391e5c.el7, openwsman-ruby 2.6.3-7.git4391e5c.el7
    fixed: vendor fix RHSA-2020:3940
  • Red Hat Virtualization 4 redhat-virtualization-host-image-update
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

15.24% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected products

  • [UNKNOWN] openwsman

Classification

Weakness
  • CWE-835 Loop with Unreachable Exit Condition

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.