CVE-2017-15923

Konversation 1.4.x, 1.5.x, 1.6.x, and 1.7.x before 1.7.3 allow remote attackers to cause a denial...

7.5 HighFix available

Konversation 1.4.x, 1.5.x, 1.6.x, and 1.7.x before 1.7.3 allow remote attackers to cause a denial of service (crash) via vectors related to parsing of IRC color formatting codes.

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

2.73%Up 1.1 points since Apr 14, 2021

What each source reports

NVD Score used 7.5

Konversation 1.4.x, 1.5.x, 1.6.x, and 1.7.x before 1.7.3 allow remote attackers to cause a denial of service (crash) via vectors related to parsing of IRC color formatting codes.

Record: CVE-2017-15923
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
Updated: 2026-11-02

CVE List No score

Konversation 1.4.x, 1.5.x, 1.6.x, and 1.7.x before 1.7.3 allow remote attackers to cause a denial of service (crash) via vectors related to parsing of IRC color formatting codes.

Record: CVE-2017-15923
Updated: 2026-11-02

EUVDEUVD-2017-7340 No score

Konversation 1.4.x, 1.5.x, 1.6.x, and 1.7.x before 1.7.3 allow remote attackers to cause a denial of service (crash) via vectors related to parsing of IRC color formatting codes.

Record: EUVD-2017-7340
Updated: 2026-11-03

GitHub AdvisoriesGHSA-gmxc-2h86-8gwf 7.5

Konversation 1.4.x, 1.5.x, 1.6.x, and 1.7.x before 1.7.3 allow remote attackers to cause a denial...

Konversation 1.4.x, 1.5.x, 1.6.x, and 1.7.x before 1.7.3 allow remote attackers to cause a denial of service (crash) via vectors related to parsing of IRC color formatting codes.

Record: GHSA-gmxc-2h86-8gwf
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

OSV 7.5

Konversation 1.4.x, 1.5.x, 1.6.x, and 1.7.x before 1.7.3 allow remote attackers to cause a denial of service (crash) via vectors related to parsing of IRC color formatting codes.

Record: CVE-2017-15923
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

OSVDEBIAN-CVE-2017-15923 7.5

Konversation 1.4.x, 1.5.x, 1.6.x, and 1.7.x before 1.7.3 allow remote attackers to cause a denial of service (crash) via vectors related to parsing of IRC color formatting codes.

Record: DEBIAN-CVE-2017-15923
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-2017-15923 7.5

Konversation 1.4.x, 1.5.x, 1.6.x, and 1.7.x before 1.7.3 allow remote attackers to cause a denial of service (crash) via vectors related to parsing of IRC color formatting codes.

Record: UBUNTU-CVE-2017-15923
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

OSVMGASA-2017-0419 No score

Updated konversation packages fix security vulnerability

Joseph Bisch discovered that Konversation could crash when parsing certain IRC color formatting codes (CVE-2017-15923).

Record: MGASA-2017-0419
Updated: 2026-11-02

OSVopenSUSE-SU-2024:10898-1 No score

konversation-21.08.1-1.2 on GA media

These are all security issues fixed in the konversation-21.08.1-1.2 package on the GA media of openSUSE Tumbleweed.

Record: openSUSE-SU-2024:10898-1
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`konversation` Debian:12	before 1.7.3-1	1.7.3-1
`konversation` Debian:13	before 1.7.3-1	1.7.3-1
`konversation` Debian:14	before 1.7.3-1	1.7.3-1
`konversation` Debian:7	before 1.4-1+deb7u2, plus listed versions 1.4-11.4-1+deb7u1	1.4-1+deb7u2
`konversation` Debian:8	before 1.5-2+deb8u1, plus listed versions 1.5-2	1.5-2+deb8u1
`konversation` Debian:9	before 1.6.2-2+deb9u1, plus listed versions 1.6.2-2	1.6.2-2+deb9u1
`konversation` Mageia:5	before 1.5.1-1.1.mga5	1.5.1-1.1.mga5
`konversation` Mageia:6	before 1.7.3-1.mga6	1.7.3-1.mga6
`konversation` Ubuntu:14.04:LTS	before 1.5-1ubuntu1.14.04.2, plus listed versions 1.5~rc1+git20130415-0ubuntu11.5-0ubuntu11.5-1ubuntu11.5-1ubuntu1.14.04.1	1.5-1ubuntu1.14.04.2
`konversation` Ubuntu:16.04:LTS	before 1.6-0ubuntu1.1, plus listed versions 1.6-0ubuntu1	1.6-0ubuntu1.1
`konversation` openSUSE:Tumbleweed	before 21.08.1-1.2	21.08.1-1.2

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2017-15923 is a high vulnerability (CVSS 7.5) in Konversation, published November 13, 2017. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.73%, the 86th percentile. Fixed in konversation 1.7.3-1.

References

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