CVE-2019-9917
published 2019-03-27CVE-2019-9917: ZNC before 1.7.3-rc1 allows an existing remote user to cause a Denial of Service (crash) via invalid encoding.
PriorityP427medium6.5CVSS 3.0
AVNACLPRLUINSUCNINAH
EPSS
3.08%
86.4th percentile
ZNC before 1.7.3-rc1 allows an existing remote user to cause a Denial of Service (crash) via invalid encoding.
Affected
10 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| canonical | ubuntu_linux | — | — |
| debian | znc | < znc 1.7.2-2 (bookworm) | znc 1.7.2-2 (bookworm) |
| fedoraproject | fedora | — | — |
| fedoraproject | fedora | — | — |
| fedoraproject | fedora | — | — |
| znc | znc | <= 1.7.2 | — |
| znc | znc | >= 0 < 1.7.2-2 | 1.7.2-2 |
| znc | znc | >= 0 < 1.7.2-2 | 1.7.2-2 |
| znc | znc | >= 0 < 1.7.2-2 | 1.7.2-2 |
| znc | znc | >= 0 < 1.7.2-2 | 1.7.2-2 |
CVSS provenance
nvdv3.06.5MEDIUMCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
nvdv2.04.0MEDIUMAV:N/AC:L/Au:S/C:N/I:N/A:P
osv6.5MEDIUM
vendor_debian6.5MEDIUM
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GHSA
GHSA-qwh2-7wpp-c8p6: ZNC before 1
ghsa_unreviewed·2022-05-14
CVE-2019-9917 [MEDIUM] CWE-20 GHSA-qwh2-7wpp-c8p6: ZNC before 1
ZNC before 1.7.3-rc1 allows an existing remote user to cause a Denial of Service (crash) via invalid encoding.
OSV
CVE-2019-9917: ZNC before 1
osv·2019-03-27·CVSS 6.5
CVE-2019-9917 [MEDIUM] CVE-2019-9917: ZNC before 1
ZNC before 1.7.3-rc1 allows an existing remote user to cause a Denial of Service (crash) via invalid encoding.
Ubuntu
ZNC vulnerability
vendor_ubuntu·2019-04-18
CVE-2019-9917 ZNC vulnerability
Title: ZNC vulnerability
Summary: ZNC could be made to crash or run programs if it received specially
crafted network traffic.
It was discovered that ZNC incorrectly handled certain invalid encodings.
An authenticated remote user could use this issue to cause ZNC to crash,
resulting in a denial of service, or possibly execute arbitrary code.
Instructions: In general, a standard system update will make all the necessary changes.
Debian
CVE-2019-9917: znc - ZNC before 1.7.3-rc1 allows an existing remote user to cause a Denial of Service...
vendor_debian·2019·CVSS 6.5
CVE-2019-9917 [MEDIUM] CVE-2019-9917: znc - ZNC before 1.7.3-rc1 allows an existing remote user to cause a Denial of Service...
ZNC before 1.7.3-rc1 allows an existing remote user to cause a Denial of Service (crash) via invalid encoding.
Scope: local
bookworm: resolved (fixed in 1.7.2-2)
bullseye: resolved (fixed in 1.7.2-2)
forky: resolved (fixed in 1.7.2-2)
sid: resolved (fixed in 1.7.2-2)
trixie: resolved (fixed in 1.7.2-2)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2019-12816 znc: invalid encoding leading to remote code execution
bugzilla·2019-07-02·CVSS 8.8
CVE-2019-12816 [HIGH] CVE-2019-12816 znc: invalid encoding leading to remote code execution
CVE-2019-12816 znc: invalid encoding leading to remote code execution
Two vulnerabilities were discovered in the ZNC IRC bouncer which could result in remote code execution (CVE-2019-12816) or denial of service via invalid encoding (CVE-2019-9917).
Reference:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=925285
Discussion:
Created znc tracking bugs for this issue:
Affects: epel-7 [bug 1726159]
Affects: fedora-all [bug 1726160]
---
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.
Bugzilla
CVE-2019-9917 znc: crash on invalid encoding [fedora-all]
bugzilla·2019-03-26·CVSS 6.5
CVE-2019-9917 [MEDIUM] CVE-2019-9917 znc: crash on invalid encoding [fedora-all]
CVE-2019-9917 znc: crash on invalid encoding [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple supported versions of Fedora. While on
Bugzilla
CVE-2019-9917 znc: crash on invalid encoding
bugzilla·2019-03-26·CVSS 6.5
CVE-2019-9917 [MEDIUM] CVE-2019-9917 znc: crash on invalid encoding
CVE-2019-9917 znc: crash on invalid encoding
description not found
Reference:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=925285
Upstream commit:
https://github.com/znc/znc/commit/64613bc8b6b4adf1e32231f9844d99cd512b8973
Discussion:
Created znc tracking bugs for this issue:
Affects: fedora-all [bug 1692770]
---
Created znc tracking bugs for this issue:
Affects: epel-7 [bug 1692771]
---
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.
Bugzilla
CVE-2019-9917 znc: crash on invalid encoding [epel-7]
bugzilla·2019-03-26·CVSS 6.5
CVE-2019-9917 [MEDIUM] CVE-2019-9917 znc: crash on invalid encoding [epel-7]
CVE-2019-9917 znc: crash on invalid encoding [epel-7]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of epel-7.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
Discussion:
Use the following template to for the 'fedpkg update' request to su
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00037.htmlhttp://lists.opensuse.org/opensuse-security-announce/2019-08/msg00018.htmlhttps://github.com/znc/znc/commit/64613bc8b6b4adf1e32231f9844d99cd512b8973https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7WTRBTPL7WWKQ7DZ2ALDTCGYUWSE6SL3/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WRHCMHI44AW5CJ22WV676BKFUWWCLA7T/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZRVSINQHM623GJYYNDSBYSXT2MHKFCYQ/https://seclists.org/bugtraq/2019/Jun/23https://usn.ubuntu.com/3950-1/https://www.debian.org/security/2019/dsa-4463http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00037.htmlhttp://lists.opensuse.org/opensuse-security-announce/2019-08/msg00018.htmlhttps://github.com/znc/znc/commit/64613bc8b6b4adf1e32231f9844d99cd512b8973https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7WTRBTPL7WWKQ7DZ2ALDTCGYUWSE6SL3/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WRHCMHI44AW5CJ22WV676BKFUWWCLA7T/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZRVSINQHM623GJYYNDSBYSXT2MHKFCYQ/https://seclists.org/bugtraq/2019/Jun/23https://usn.ubuntu.com/3950-1/https://www.debian.org/security/2019/dsa-4463
2019-03-27
Published