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CVE-2018-17019

In Bro through 2.5.5, there is a DoS in IRC protocol names command parsing in analyzer/protocol...

7.5 High

CVE-2018-17019 is a high vulnerability (CVSS 7.5) in Bro, published September 13, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.40%, the 72nd percentile. No source names a fixed version.

In Bro through 2.5.5, there is a DoS in IRC protocol names command parsing in analyzer/protocol/irc/IRC.cc.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

1.40%Up 1.0 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 7.5

In Bro through 2.5.5, there is a DoS in IRC protocol names command parsing in analyzer/protocol/irc/IRC.cc.

Record
CVE-2018-17019
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness
CWE-20
Updated
2026-11-02
CVE List No score

In Bro through 2.5.5, there is a DoS in IRC protocol names command parsing in analyzer/protocol/irc/IRC.cc.

Record
CVE-2018-17019
Updated
2026-11-02
EUVDEUVD-2018-8803 No score

In Bro through 2.5.5, there is a DoS in IRC protocol names command parsing in analyzer/protocol/irc/IRC.cc.

Record
EUVD-2018-8803
Updated
2026-11-03
GitHub AdvisoriesGHSA-fcrf-wj6f-p332 7.5

In Bro through 2.5.5, there is a DoS in IRC protocol names command parsing in analyzer/protocol...

In Bro through 2.5.5, there is a DoS in IRC protocol names command parsing in analyzer/protocol/irc/IRC.cc.

Record
GHSA-fcrf-wj6f-p332
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-20
Updated
2026-11-02
OSV 7.5

In Bro through 2.5.5, there is a DoS in IRC protocol names command parsing in analyzer/protocol/irc/IRC.cc.

Record
CVE-2018-17019
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2018-17019 7.5

In Bro through 2.5.5, there is a DoS in IRC protocol names command parsing in analyzer/protocol/irc/IRC.cc.

Record
UBUNTU-CVE-2018-17019
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
bro
Ubuntu:16.04:LTS
All versions, plus listed versions
2.4+dfsg-12.4.1+dfsg-12.4.1+dfsg-22.4.1+dfsg-2build1
None known
bro
Ubuntu:18.04:LTS
All versions, plus listed versions
2.5.1-1build12.5.2-12.5.2-22.5.3-12.5.3-1build1
None known

History

History
WhenChangedSources
2026-11-03aliasesEUVD
2026-11-02createdCVE List, GitHub Advisories, NVD, OSV

References

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