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AUSCERT External Security Bulletin Redistribution
ESB-2018.2285
openSUSE Security Update: Security update for znc
8 August 2018
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AusCERT Security Bulletin Summary
---------------------------------
Product: znc
Publisher: SUSE
Operating System: SUSE
Impact/Access: Increased Privileges -- Existing Account
Access Confidential Data -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2018-14056 CVE-2018-14055
Reference: ESB-2018.2093
ESB-2018.2060
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openSUSE Security Update: Security update for znc
______________________________________________________________________________
Announcement ID: openSUSE-SU-2018:2228-1
Rating: moderate
References: #1101280 #1101281
Cross-References: CVE-2018-14055 CVE-2018-14056
Affected Products:
SUSE Package Hub for SUSE Linux Enterprise 12
______________________________________________________________________________
An update that fixes two vulnerabilities is now available.
Description:
This update for znc fixes the following issues:
- Update to version 1.7.1
* CVE-2018-14055: non-admin user could gain admin privileges and shell
access by injecting values into znc.conf (bnc#1101281)
* CVE-2018-14056: path traversal in HTTP handler via ../ in a web skin
name. (bnc#1101280)
- Update to version 1.7.0
* Make ZNC UI translateable to different languages
* Configs written before ZNC 0.206 can't be read anymore
* Implement IRCv3.2 capabilities away-notify, account-notify,
extended-join
* Implement IRCv3.2 capabilities echo-message, cap-notify on the "client
side"
* Update capability names as they are named in IRCv3.2:
znc.in/server-time-iso→server-time, znc.in/batch→batch. Old names
will continue working for a while, then will be removed in some future
version.
* Make ZNC request server-time from server when available
* Add "AuthOnlyViaModule" global/user setting
* Stop defaulting real name to "Got ZNC?"
* Add SNI SSL client support
* Add support for CIDR notation in allowed hosts list and in trusted
proxy list
* Add network-specific config for cert validation in addition to
user-supplied fingerprints: TrustAllCerts, defaults to false, and
TrustPKI, defaults to true.
* Add /attach command for symmetry with /detach. Unlike /join it allows
wildcards.
- Update to version 1.6.6:
* Fix use-after-free in znc --makepem. It was broken for a long time,
but started segfaulting only now. This is a useability fix, not a
security fix, because self-signed (or signed by a CA) certificates can
be created without using --makepem, and then combined into znc.pem.
Patch Instructions:
To install this openSUSE Security Update use the SUSE recommended installation methods
like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:
- SUSE Package Hub for SUSE Linux Enterprise 12:
zypper in -t patch openSUSE-2018-819=1
Package List:
- SUSE Package Hub for SUSE Linux Enterprise 12 (aarch64 ppc64le s390x x86_64):
znc-1.7.1-2.1
znc-devel-1.7.1-2.1
znc-perl-1.7.1-2.1
znc-python3-1.7.1-2.1
znc-tcl-1.7.1-2.1
- SUSE Package Hub for SUSE Linux Enterprise 12 (noarch):
znc-lang-1.7.1-2.1
References:
https://www.suse.com/security/cve/CVE-2018-14055.html
https://www.suse.com/security/cve/CVE-2018-14056.html
https://bugzilla.suse.com/1101280
https://bugzilla.suse.com/1101281
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