{"document":{"aggregate_severity":{"namespace":"https://www.suse.com/support/security/rating/","text":"important"},"category":"csaf_vex","csaf_version":"2.0","distribution":{"text":"Copyright 2024 SUSE LLC. All rights reserved.","tlp":{"label":"WHITE","url":"https://www.first.org/tlp/"}},"lang":"en","notes":[{"category":"summary","text":"SUSE CVE-2018-12551","title":"Title"},{"category":"description","text":"When Eclipse Mosquitto version 1.0 to 1.5.5 (inclusive) is configured to use a password file for authentication, any malformed data in the password file will be treated as valid. This typically means that the malformed data becomes a username and no password. If this occurs, clients can circumvent authentication and get access to the broker by using the malformed username. In particular, a blank line will be treated as a valid empty username. Other security measures are unaffected. Users who have only used the mosquitto_passwd utility to create and modify their password files are unaffected by this vulnerability.","title":"Description of the CVE"},{"category":"legal_disclaimer","text":"CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).","title":"Terms of use"}],"publisher":{"category":"vendor","contact_details":"https://www.suse.com/support/security/contact/","name":"SUSE Product Security Team","namespace":"https://www.suse.com/"},"references":[{"category":"external","summary":"CVE-2018-12551","url":"https://www.suse.com/security/cve/CVE-2018-12551"},{"category":"external","summary":"SUSE Security Ratings","url":"https://www.suse.com/support/security/rating/"},{"category":"external","summary":"SUSE Bug 1125020 for CVE-2018-12551","url":"https://bugzilla.suse.com/1125020"},{"category":"external","summary":"Advisory link for openSUSE-SU-2019:0233-1","url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/SRF6WPNSL7W2K6AHOK3GYIPB4F2ISYFN/#SRF6WPNSL7W2K6AHOK3GYIPB4F2ISYFN"},{"category":"external","summary":"Advisory link for openSUSE-SU-2019:0237-1","url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/YSX4D64TRLDVQNQZHRPNZIOVDOBKHJEA/#YSX4D64TRLDVQNQZHRPNZIOVDOBKHJEA"}],"title":"SUSE CVE CVE-2018-12551","tracking":{"current_release_date":"2025-03-15T12:03:47Z","generator":{"date":"2023-02-15T04:26:23Z","engine":{"name":"cve-database.git:bin/generate-csaf-vex.pl","version":"1"}},"id":"CVE-2018-12551","initial_release_date":"2023-02-15T04:26:23Z","revision_history":[{"date":"2023-02-15T04:26:23Z","number":"2","summary":"Current version"},{"date":"2023-12-08T04:11:12Z","number":"3","summary":"Current version"},{"date":"2023-12-09T02:56:02Z","number":"4","summary":"Current 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to 1.5.5 (inclusive) is configured to use a password file for authentication, any malformed data in the password file will be treated as valid. This typically means that the malformed data becomes a username and no password. If this occurs, clients can circumvent authentication and get access to the broker by using the malformed username. In particular, a blank line will be treated as a valid empty username. Other security measures are unaffected. Users who have only used the mosquitto_passwd utility to create and modify their password files are unaffected by this vulnerability.","title":"CVE description"}],"product_status":{"recommended":["SUSE Package Hub 15:libmosquitto1-1.4.15-bp150.3.3.1","SUSE Package Hub 15:libmosquittopp1-1.4.15-bp150.3.3.1","SUSE Package Hub 15:mosquitto-1.4.15-bp150.3.3.1","SUSE Package Hub 15:mosquitto-clients-1.4.15-bp150.3.3.1","SUSE Package Hub 15:mosquitto-devel-1.4.15-bp150.3.3.1","openSUSE Leap 15.0:libmosquitto1-1.4.15-lp150.2.3.1","openSUSE Leap 15.0:libmosquittopp1-1.4.15-lp150.2.3.1","openSUSE Leap 15.0:mosquitto-1.4.15-lp150.2.3.1","openSUSE Leap 15.0:mosquitto-clients-1.4.15-lp150.2.3.1","openSUSE Leap 15.0:mosquitto-devel-1.4.15-lp150.2.3.1","openSUSE Tumbleweed:libmosquitto1-2.0.11-1.2","openSUSE Tumbleweed:libmosquittopp1-2.0.11-1.2","openSUSE Tumbleweed:mosquitto-2.0.11-1.2","openSUSE Tumbleweed:mosquitto-clients-2.0.11-1.2","openSUSE Tumbleweed:mosquitto-devel-2.0.11-1.2"]},"references":[{"category":"external","summary":"CVE-2018-12551","url":"https://www.suse.com/security/cve/CVE-2018-12551"},{"category":"external","summary":"SUSE Security Ratings","url":"https://www.suse.com/support/security/rating/"},{"category":"external","summary":"SUSE Bug 1125020 for CVE-2018-12551","url":"https://bugzilla.suse.com/1125020"},{"category":"external","summary":"Advisory link for openSUSE-SU-2019:0233-1","url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/SRF6WPNSL7W2K6AHOK3GYIPB4F2ISYFN/#SRF6WPNSL7W2K6AHOK3GYIPB4F2ISYFN"},{"category":"external","summary":"Advisory link for openSUSE-SU-2019:0237-1","url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/YSX4D64TRLDVQNQZHRPNZIOVDOBKHJEA/#YSX4D64TRLDVQNQZHRPNZIOVDOBKHJEA"}],"remediations":[{"category":"vendor_fix","details":"To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n","product_ids":["SUSE Package Hub 15:libmosquitto1-1.4.15-bp150.3.3.1","SUSE Package Hub 15:libmosquittopp1-1.4.15-bp150.3.3.1","SUSE Package Hub 15:mosquitto-1.4.15-bp150.3.3.1","SUSE Package Hub 15:mosquitto-clients-1.4.15-bp150.3.3.1","SUSE Package Hub 15:mosquitto-devel-1.4.15-bp150.3.3.1","openSUSE Leap 15.0:libmosquitto1-1.4.15-lp150.2.3.1","openSUSE Leap 15.0:libmosquittopp1-1.4.15-lp150.2.3.1","openSUSE Leap 15.0:mosquitto-1.4.15-lp150.2.3.1","openSUSE Leap 15.0:mosquitto-clients-1.4.15-lp150.2.3.1","openSUSE Leap 15.0:mosquitto-devel-1.4.15-lp150.2.3.1","openSUSE Tumbleweed:libmosquitto1-2.0.11-1.2","openSUSE Tumbleweed:libmosquittopp1-2.0.11-1.2","openSUSE Tumbleweed:mosquitto-2.0.11-1.2","openSUSE Tumbleweed:mosquitto-clients-2.0.11-1.2","openSUSE Tumbleweed:mosquitto-devel-2.0.11-1.2"]}],"scores":[{"cvss_v3":{"baseScore":8.1,"baseSeverity":"HIGH","vectorString":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.0"},"products":["SUSE Package Hub 15:libmosquitto1-1.4.15-bp150.3.3.1","SUSE Package Hub 15:libmosquittopp1-1.4.15-bp150.3.3.1","SUSE Package Hub 15:mosquitto-1.4.15-bp150.3.3.1","SUSE Package Hub 15:mosquitto-clients-1.4.15-bp150.3.3.1","SUSE Package Hub 15:mosquitto-devel-1.4.15-bp150.3.3.1","openSUSE Leap 15.0:libmosquitto1-1.4.15-lp150.2.3.1","openSUSE Leap 15.0:libmosquittopp1-1.4.15-lp150.2.3.1","openSUSE Leap 15.0:mosquitto-1.4.15-lp150.2.3.1","openSUSE Leap 15.0:mosquitto-clients-1.4.15-lp150.2.3.1","openSUSE Leap 15.0:mosquitto-devel-1.4.15-lp150.2.3.1","openSUSE Tumbleweed:libmosquitto1-2.0.11-1.2","openSUSE Tumbleweed:libmosquittopp1-2.0.11-1.2","openSUSE Tumbleweed:mosquitto-2.0.11-1.2","openSUSE Tumbleweed:mosquitto-clients-2.0.11-1.2","openSUSE Tumbleweed:mosquitto-devel-2.0.11-1.2"]}],"threats":[{"category":"impact","date":"2019-02-11T16:03:41Z","details":"important"}],"title":"CVE-2018-12551"}]}