CVE-2019-9735: debian debian_linux
Vulnerability summary
CVE-2019-9735 is a medium (CVSS 6.5) vulnerability in debian debian_linux. EPSS estimates a 3.71% chance of exploitation in the next 30 days, higher than 89.7% of scored vulnerabilities. 1 public exploit is recorded.
Not severe (CVSS 6.5, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 4 · Related 2Timeline
- 13-03-2019PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
An issue was discovered in the iptables firewall module in OpenStack Neutron before 10.0.8, 11.x before 11.0.7, 12.x before 12.0.6, and 13.x before 13.0.3. By setting a destination port in a security group rule along with a protocol that doesn't support that option (for example, VRRP), an authenticated user may block further application of security group rules for instances from any project/tenant on the compute hosts to which it's applied. (Only deployments using the iptables security group driver are affected.)
CVSS metrics
7 scores · 5 sources · 3 versions- OSV · PypiEcosystem advisory · calculated6.5MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · Red hatEcosystem advisory · calculated7.1HighCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:HDiffers
- OSV · UbuntuEcosystem advisory · calculated6.5MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated6.5MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
3.71%
Chance of exploitation in the next 30 days
Percentile
90%
Versus all other CVEs
30-day change
No change 0.00 pp
From 3.71% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
1 foundExploit Reference (launchpad.net)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Redhat18 products
- openstack10 | 13 | 14
- openstack-neutron< 1:9.4.1-40.el7ost
- openstack-neutron-bigswitch-agent< 2:9.42.14-1.el7ost
- openstack-neutron-bigswitch-lldp< 2:9.42.14-1.el7ost
- openstack-neutron-common< 1:9.4.1-40.el7ost
Debian2 products
- neutron< 2:13.0.2-13 | < 2:9.1.1-3+deb9u1
- debian_linuxEOL9.0
Openstack1 product
- neutron< 10.0.8 | ≥ 11.0.0, < 11.0.7 | ≥ 12.0.0, < 12.0.6 | ≥ 13.0.0, < 13.0.3
PyPI1 product
- neutron≥ 11.0.0, < 11.0.7 | ≥ 12.0.0, < 12.0.6 | ≥ 13.0.0, < 13.0.3 | < 10.0.8
Ubuntu1 product
- neutron< 2:12.0.6-0ubuntu1 | < 2:8.4.0-0ubuntu7.4
5 vendors · 23 products
References
34 links- www.openwall.com/lists/oss-security/2019/03/18/2Mailing ListX Refsource MLISTWEBThird Party Advisory
- www.debian.org/security/2019/dsa-4409Vendor AdvisoryX Refsource DEBIANWEBAdvisoryThird Party Advisory
- access.redhat.com/errata/RHSA-2019:0916Vendor AdvisoryX Refsource REDHATWEBAdvisoryThird Party Advisory
- access.redhat.com/errata/RHSA-2019:0935Vendor AdvisoryX Refsource REDHATWEBAdvisoryThird Party Advisory
- access.redhat.com/errata/RHSA-2019:0879Vendor AdvisoryX Refsource REDHATWEBAdvisoryThird Party Advisory
Show all 34 references
- github.com/openstack/neutronPACKAGE