{"schemaVersion":3,"id":"SUSE-SU-2026:22956-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Security update for libssh\n\nThis update for libssh fixes the following issues:\n\n- CVE-2026-15370: stack buffer overflow in SFTP server longname construction (bsc#1272162).\n- CVE-2026-59843: denial of service via zero advertised channel packet size (bsc#1272164).\n- CVE-2026-59844: denial of service via oversized SFTP read length (bsc#1272165).\n- CVE-2026-59845: denial of service via unchecked ProxyCommand fork() failure (bsc#1272166).\n- CVE-2026-59846: information disclosure via ProxyCommand %r username expansion (bsc#1272167).\n- CVE-2026-59847: integrity downgrade via OpenSSL AES-GCM tag verification (bsc#1272168).\n- CVE-2026-59848: denial of service via SFTP responses with unknown request IDs (bsc#1272169).\n- CVE-2026-59849: denial of service via automatic certificate authentication loop (bsc#1272170).\n- CVE-2026-59850: use-after-free via data callbacks on closed channels (bsc#1272171).\n\nChanges for libssh:\n\n- Update to 0.11.5:\n\n * Zero-initialize every ssh_string\n * Fix compatibility with C23 / gcc16\n * Fix multiple memory leaks, null checks, and error checks\n * Validate peer public key in DH key exchange\n * Avoid remote window overflow\n * Avoid off-by-one overflow during kbdint authentication\n * Avoid logging uninitialized sequence numbers\n * Avoid double conversion of SFTP version number\n * Send correct SFTP server version number\n * Avoid handling repeated SFTP INIT messages\n * Harmonize return values from SFTP server callbacks\n\n- Update %suse_version checks for SLES 16.x (jsc#PED-15815)","dates":{"published":"2026-07-25T17:15:12.000Z","modified":"2026-07-29T18:24:23.609Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":null,"severity":"unknown","version":null,"versionLabel":null,"source":null,"vector":null,"computed":false,"selection":"none"},"metrics":[]},"epss":{"probability":null,"percentile":null,"severity":"unknown","asOf":null,"change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[],"last30":[]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[],"affected":[{"vendor":"suse","product":"libssh&distro=SUSE Linux Enterprise Server 16.0","name":"libssh","label":"libssh&distro=SUSE Linux Enterprise Server 16.0","ecosystem":"SUSE Linux Enterprise","cpePart":null,"purl":"pkg:rpm/suse/libssh&distro=SUSE Linux Enterprise Server 16.0","purlType":"rpm","versions":[{"text":"< 0.11.5-160000.1.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0.11.5-160000.1.1","eol":null,"hubHref":null},{"vendor":"suse","product":"libssh&distro=SUSE Linux Enterprise Server for SAP applications 16.0","name":"libssh","label":"libssh&distro=SUSE Linux Enterprise Server for SAP applications 16.0","ecosystem":"SUSE Linux Enterprise","cpePart":null,"purl":"pkg:rpm/suse/libssh&distro=SUSE Linux Enterprise Server for SAP applications 16.0","purlType":"rpm","versions":[{"text":"< 0.11.5-160000.1.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0.11.5-160000.1.1","eol":null,"hubHref":null}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://www.suse.com/support/update/announcement/2026/suse-su-202622956-1/","label":"www.suse.com/support/update/announcement/2026/suse-su-202622956-1/","hostname":"www.suse.com","tags":["Advisory"]},{"url":"https://bugzilla.suse.com/1272162","label":"bugzilla.suse.com/1272162","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1272164","label":"bugzilla.suse.com/1272164","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1272165","label":"bugzilla.suse.com/1272165","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1272166","label":"bugzilla.suse.com/1272166","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1272167","label":"bugzilla.suse.com/1272167","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1272168","label":"bugzilla.suse.com/1272168","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1272169","label":"bugzilla.suse.com/1272169","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1272170","label":"bugzilla.suse.com/1272170","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1272171","label":"bugzilla.suse.com/1272171","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://www.suse.com/security/cve/CVE-2026-15370","label":"www.suse.com/security/cve/CVE-2026-15370","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-59843","label":"www.suse.com/security/cve/CVE-2026-59843","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-59844","label":"www.suse.com/security/cve/CVE-2026-59844","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-59845","label":"www.suse.com/security/cve/CVE-2026-59845","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-59846","label":"www.suse.com/security/cve/CVE-2026-59846","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-59847","label":"www.suse.com/security/cve/CVE-2026-59847","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-59848","label":"www.suse.com/security/cve/CVE-2026-59848","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-59849","label":"www.suse.com/security/cve/CVE-2026-59849","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-59850","label":"www.suse.com/security/cve/CVE-2026-59850","hostname":"www.suse.com","tags":["WEB"]}],"lineage":{"upstream":["CVE-2026-15370","CVE-2026-59843","CVE-2026-59844","CVE-2026-59845","CVE-2026-59846","CVE-2026-59847","CVE-2026-59848","CVE-2026-59849","CVE-2026-59850"],"downstream":[],"duplicates":[],"related":["CVE-2026-15370","CVE-2026-59843","CVE-2026-59844","CVE-2026-59845","CVE-2026-59846","CVE-2026-59847","CVE-2026-59848","CVE-2026-59849","CVE-2026-59850"]},"timeline":[{"kind":"published","date":"2026-07-25T17:15:12.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-07-29T18:24:23.609Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":0,"level":"minimal","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T11:35:53.122Z","stale":false,"partial":false}}