{"id":"CVE-2026-56968","aliases":["DEBIAN-CVE-2026-56968","EUVD-2026-38512","GHSA-2qgp-6c6g-cmwv","OESA-2026-3372","OESA-2026-3373","OESA-2026-3374","OESA-2026-3375","OESA-2026-3443","SUSE-SU-2026:22631-1","UBUNTU-CVE-2026-56968","openSUSE-SU-2026:21303-1"],"status":"published","title":"GNU SASL before 2.2.4 lacks sanitization of a short challenge in _gsasl_ntlm_client_step in the...","description":"GNU SASL before 2.2.4 lacks sanitization of a short challenge in _gsasl_ntlm_client_step in the NTLM client, which could result in memory disclosure via a crafted server.","severity":{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00413,"percentile":0.36039,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-839","CWE-908"],"published":"2026-06-23T16:18:29Z","modified":"2026-10-26T11:47:31Z","fixes":[{"ecosystem":"Debian:12","package":"gsasl","fixed_in":["2.2.0-1+deb12u2"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"gsasl","fixed_in":["2.2.2-1.1+deb13u2"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"gsasl","fixed_in":["2.2.4-1"],"sources":["osv"]},{"ecosystem":"SUSE:Linux Enterprise Server 16.0","package":"gsasl","fixed_in":["2.2.1-160000.4.1"],"sources":["osv"]},{"ecosystem":"SUSE:Linux Enterprise Server for SAP applications 16.0","package":"gsasl","fixed_in":["2.2.1-160000.4.1"],"sources":["osv"]},{"ecosystem":"openSUSE:Leap 16.0","package":"gsasl","fixed_in":["2.2.1-160000.4.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"gsasl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.2.0-1+deb12u2"}]}],"versions":["2.2.0-1","2.2.0-1+deb12u1"]},{"source":"osv","ecosystem":"Debian:13","package":"gsasl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.2.2-1.1+deb13u2"}]}],"versions":["2.2.2-1.1","2.2.2-1.1+deb13u1"]},{"source":"osv","ecosystem":"Debian:14","package":"gsasl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.2.4-1"}]}],"versions":["2.2.2-1.1","2.2.2-2","2.2.2-3","2.2.2-4","2.2.3-1"]},{"source":"osv","ecosystem":"openEuler:24.03-LTS-SP1","package":"libgsasl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.10.0-3.oe2403sp1"}]}],"bundled":2},{"source":"osv","ecosystem":"openEuler:24.03-LTS-SP3","package":"libgsasl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.10.0-3.oe2403sp3"}]}],"bundled":2},{"source":"osv","ecosystem":"openEuler:20.03-LTS-SP4","package":"libgsasl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.1-3.oe2003sp4"}]}],"bundled":2},{"source":"osv","ecosystem":"openEuler:22.03-LTS-SP4","package":"libgsasl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.1-3.oe2203sp4"}]}],"bundled":2},{"source":"osv","ecosystem":"openEuler:24.03-LTS-SP4","package":"libgsasl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.10.0-3.oe2403sp4"}]}],"bundled":2},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Server 16.0","package":"gsasl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.2.1-160000.4.1"}]}]},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Server for SAP applications 16.0","package":"gsasl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.2.1-160000.4.1"}]}]},{"source":"osv","ecosystem":"Ubuntu:Pro:14.04:LTS","package":"gsasl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.8.0-2ubuntu1","1.8.0-2ubuntu2","1.8.0-2ubuntu2+esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"gsasl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.8.0-8ubuntu1","1.8.0-8ubuntu2","1.8.0-8ubuntu2+esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"gsasl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.8.0-8ubuntu3","1.8.0-8ubuntu3+esm2"]},{"source":"osv","ecosystem":"Ubuntu:Pro:20.04:LTS","package":"gsasl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.8.0-8ubuntu3","1.8.1-1","1.8.1-1ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:22.04:LTS","package":"gsasl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.10.0-4","1.10.0-5","1.10.0-5ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"gsasl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.2.0-2ubuntu1","2.2.0-2ubuntu2","2.2.1-1ubuntu1","2.2.1-1willsync1","2.2.1-1willsync1build1","2.2.1-1willsync1build2","2.2.1-1willsync1ubuntu0.1"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"gsasl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.2.1-1willsync1ubuntu1","2.2.2-2ubuntu1","2.2.2-2ubuntu1.1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"gsasl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.2.2-2ubuntu1","2.2.2-4ubuntu1","2.2.2-4ubuntu1.1"]},{"source":"osv","ecosystem":"openSUSE:Leap 16.0","package":"gsasl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.2.1-160000.4.1"}]}]}],"products":[{"vendor":"debian","product":"debian_linux"},{"vendor":"gnu","product":"gnu sasl"},{"vendor":"gnu","product":"sasl"}],"references":[{"url":"https://lists.gnu.org/archive/html/help-gsasl/2026-06/msg00000.html","tags":["Exploit","Mailing List","Vendor Advisory","report"]},{"url":"https://lists.debian.org/debian-security-announce/2026/msg00259.html","tags":["Mailing List"]},{"url":"https://ftp.gnu.org/gnu/gsasl/","tags":["Product"]},{"url":"https://www.gnu.org/software/gsasl/","tags":["Product"]},{"url":"https://lists.debian.org/debian-lts-announce/2026/07/msg00049.html"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-56968","tags":["advisory"]},{"url":"https://ftp.gnu.org/gnu/gsasl"},{"url":"https://www.gnu.org/software/gsasl"},{"url":"https://github.com/advisories/GHSA-2qgp-6c6g-cmwv"},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-56968","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3372","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-48829","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3373","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3374","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3375","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3443","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2026/suse-su-202622631-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1268885","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2026-56968","tags":["web"]},{"url":"https://ubuntu.com/security/CVE-2026-56968","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-56968","tags":["report"]},{"url":"","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-56968","description":"GNU SASL before 2.2.4 lacks sanitization of a short challenge in _gsasl_ntlm_client_step in the NTLM client, which could result in memory disclosure via a crafted server.","status":"published","published":"2026-06-23T16:18:29.15Z","modified":"2026-07-31T05:10:08.575Z","cvss":[{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"low","assessor":"cna"}],"cwes":["CWE-839"],"updated_at":"2026-11-02T13:37:02.780526Z"}],"euvd":[{"id":"EUVD-2026-38512","description":"GNU SASL before 2.2.4 lacks sanitization of a short challenge in _gsasl_ntlm_client_step in the NTLM client, which could result in memory disclosure via a crafted server.","status":"published","published":"2026-06-23T16:18:29Z","modified":"2026-07-31T05:10:08Z","cvss":[{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"low"}],"updated_at":"2026-11-02T18:02:26.304051Z"}],"ghsa":[{"id":"GHSA-2qgp-6c6g-cmwv","title":"GNU SASL before 2.2.4 lacks sanitization of a short challenge in _gsasl_ntlm_client_step in the...","description":"GNU SASL before 2.2.4 lacks sanitization of a short challenge in _gsasl_ntlm_client_step in the NTLM client, which could result in memory disclosure via a crafted server.","status":"published","published":"2026-06-23T18:31:43Z","modified":"2026-07-31T06:30:27Z","cvss":[{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"low"}],"cwes":["CWE-839","CWE-908"],"updated_at":"2026-11-02T15:09:59.725505Z"}],"nvd":[{"id":"CVE-2026-56968","description":"GNU SASL before 2.2.4 lacks sanitization of a short challenge in _gsasl_ntlm_client_step in the NTLM client, which could result in memory disclosure via a crafted server.","status":"published","published":"2026-06-23T17:17:09.883Z","modified":"2026-10-25T23:10:00.167Z","cvss":[{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"low","assessor":"secondary"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-839","CWE-908"],"updated_at":"2026-11-02T14:12:25.288279Z"}],"osv":[{"id":"DEBIAN-CVE-2026-56968","description":"GNU SASL before 2.2.4 lacks sanitization of a short challenge in _gsasl_ntlm_client_step in the NTLM client, which could result in memory disclosure via a crafted server.","status":"published","published":"2026-06-23T17:17:09.883Z","modified":"2026-10-26T11:47:31.316155801Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:45:57.590991Z"},{"id":"OESA-2026-3372","title":"libgsasl security update","description":"The library includes support for the SASL framework and at least partial support for the CRAM-MD5, EXTERNAL, GSSAPI, ANONYMOUS, PLAIN, SECURID, DIGEST-MD5, LOGIN, and NTLM mechanisms.\r\n\r\nSecurity Fix(es):\n\nIn GNU SASL before 2.2.3, DIGEST-MD5 has a NULL pointer dereference affecting both clients and servers, via a known token with no accompanying = character. This occurs in lib/digest-md5/getsubopt.c.(CVE-2026-48829)\n\nGNU SASL before 2.2.4 lacks sanitization of a short challenge in _gsasl_ntlm_client_step in the NTLM client, which could result in memory disclosure via a crafted server.(CVE-2026-56968)","status":"published","published":"2026-08-13T14:01:58Z","modified":"2026-08-16T01:45:17.700338466Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:52:47.217107Z"},{"id":"OESA-2026-3373","title":"libgsasl security update","description":"The library includes support for the SASL framework and at least partial support for the CRAM-MD5, EXTERNAL, GSSAPI, ANONYMOUS, PLAIN, SECURID, DIGEST-MD5, LOGIN, and NTLM mechanisms.\r\n\r\nSecurity Fix(es):\n\nIn GNU SASL before 2.2.3, DIGEST-MD5 has a NULL pointer dereference affecting both clients and servers, via a known token with no accompanying = character. This occurs in lib/digest-md5/getsubopt.c.(CVE-2026-48829)\n\nGNU SASL before 2.2.4 lacks sanitization of a short challenge in _gsasl_ntlm_client_step in the NTLM client, which could result in memory disclosure via a crafted server.(CVE-2026-56968)","status":"published","published":"2026-08-13T14:01:59Z","modified":"2026-08-16T01:45:17.792390856Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:52:47.217107Z"},{"id":"OESA-2026-3374","title":"libgsasl security update","description":"The library includes support for the SASL framework and at least partial support for the CRAM-MD5, EXTERNAL, GSSAPI, ANONYMOUS, PLAIN, SECURID, DIGEST-MD5, LOGIN, and NTLM mechanisms.\r\n\r\nSecurity Fix(es):\n\nIn GNU SASL before 2.2.3, DIGEST-MD5 has a NULL pointer dereference affecting both clients and servers, via a known token with no accompanying = character. This occurs in lib/digest-md5/getsubopt.c.(CVE-2026-48829)\n\nGNU SASL before 2.2.4 lacks sanitization of a short challenge in _gsasl_ntlm_client_step in the NTLM client, which could result in memory disclosure via a crafted server.(CVE-2026-56968)","status":"published","published":"2026-08-13T14:02:01Z","modified":"2026-08-16T01:45:17.693977402Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:52:47.217107Z"},{"id":"OESA-2026-3375","title":"libgsasl security update","description":"The library includes support for the SASL framework and at least partial support for the CRAM-MD5, EXTERNAL, GSSAPI, ANONYMOUS, PLAIN, SECURID, DIGEST-MD5, LOGIN, and NTLM mechanisms.\r\n\r\nSecurity Fix(es):\n\nIn GNU SASL before 2.2.3, DIGEST-MD5 has a NULL pointer dereference affecting both clients and servers, via a known token with no accompanying = character. This occurs in lib/digest-md5/getsubopt.c.(CVE-2026-48829)\n\nGNU SASL before 2.2.4 lacks sanitization of a short challenge in _gsasl_ntlm_client_step in the NTLM client, which could result in memory disclosure via a crafted server.(CVE-2026-56968)","status":"published","published":"2026-08-13T14:02:03Z","modified":"2026-08-16T01:45:17.708794816Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:52:47.217107Z"},{"id":"OESA-2026-3443","title":"libgsasl security update","description":"The library includes support for the SASL framework and at least partial support for the CRAM-MD5, EXTERNAL, GSSAPI, ANONYMOUS, PLAIN, SECURID, DIGEST-MD5, LOGIN, and NTLM mechanisms.\r\n\r\nSecurity Fix(es):\n\nIn GNU SASL before 2.2.3, DIGEST-MD5 has a NULL pointer dereference affecting both clients and servers, via a known token with no accompanying = character. This occurs in lib/digest-md5/getsubopt.c.(CVE-2026-48829)\n\nGNU SASL before 2.2.4 lacks sanitization of a short challenge in _gsasl_ntlm_client_step in the NTLM client, which could result in memory disclosure via a crafted server.(CVE-2026-56968)","status":"published","published":"2026-08-20T09:58:16Z","modified":"2026-08-20T10:15:10.853307041Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:52:47.217107Z"},{"id":"UBUNTU-CVE-2026-56968","description":"GNU SASL before 2.2.4 lacks sanitization of a short challenge in _gsasl_ntlm_client_step in the NTLM client, which could result in memory disclosure via a crafted server.","status":"published","published":"2026-06-23T17:17:00Z","modified":"2026-06-30T18:18:01.89188254Z","cvss":[{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"low"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T16:56:41.911783Z"},{"id":"openSUSE-SU-2026:21303-1","title":"Security update for gsasl","description":"This update for gsasl fixes the following issue\n\n- CVE-2026-56968: improper sanitization of a short challenge in `_gsasl_ntlm_client_step` of the NTLM client can lead to\n  memory disclosure (bsc#1268885).\n","status":"published","published":"2026-07-10T14:15:54Z","modified":"2026-07-13T18:24:58.599316093Z","updated_at":"2026-11-02T16:58:41.885092Z"},{"id":"SUSE-SU-2026:22631-1","title":"Security update for gsasl","description":"This update for gsasl fixes the following issue\n\n- CVE-2026-56968: improper sanitization of a short challenge in `_gsasl_ntlm_client_step` of the NTLM client can lead to\n  memory disclosure (bsc#1268885).\n","status":"published","published":"2026-07-10T14:16:00Z","modified":"2026-07-17T18:24:03.823231598Z","updated_at":"2026-11-02T15:54:03.080707Z"}]}}