Security update for gssntlmssp SUSE Patch security@suse.de SUSE Security Team openSUSE-SU-2023:0048-1 Final 1 1 2023-02-18T15:01:17Z current 2023-02-18T15:01:17Z 2023-02-18T15:01:17Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for gssntlmssp This update for gssntlmssp fixes the following issues: Update to version 1.2.0 * Implement gss_set_cred_option. * Allow to gss_wrap even if NEGOTIATE_SEAL is not negotiated. * Move HMAC code to OpenSSL EVP API. * Fix crash bug when acceptor credentials are NULL. * Translations update from Fedora Weblate. Fix security issues: * CVE-2023-25563 (boo#1208278): multiple out-of-bounds read when decoding NTLM fields. * CVE-2023-25564 (boo#1208279): memory corruption when decoding UTF16 strings. * CVE-2023-25565 (boo#1208280): incorrect free when decoding target information. * CVE-2023-25566 (boo#1208281): memory leak when parsing usernames. * CVE-2023-25567 (boo#1208282): out-of-bounds read when decoding target information. Update to version 1.1 * various build fixes and better compatibility when a MIC is requested. Update to version 1.0 * Fix test_gssapi_rfc5587. * Actually run tests with make check. * Add two tests around NTLMSSP_NEGOTIATE_LMKEY. * Refine LM compatibility level logic. * Refactor the gssntlm_required_security function. * Implement reading LM/NT hashes. * Add test for smpasswd-like user files. * Return confidentiality status. * Fix segfault in sign/seal functions. * Fix dummy signature generation. * Use UCS16LE instead of UCS-2LE. * Provide a zero lm key if the password is too long. * Completely omit CBs AV pairs when no CB provided. * Change license to the more permissive ISC. * Do not require cached users with winbind. * Add ability to pass keyfile via cred store. * Remove unused parts of Makefile.am. * Move attribute names to allocated strings. * Adjust serialization for name attributes. * Fix crash in acquiring credentials. * Fix fallback to external_creds interface. * Introduce parse_user_name() function. * Add test for parse_user_name. * Change how we assemble user names in ASC. * Use thread local storage for winbind context. * Make per thread winbind context optional. * Fixed memleak of usr_cred. * Support get_sids request via name attributes. * Fixed memory leaks found by valgrind. - Update to version 0.9 * add support for getting session key. * Add gss_inquire_attrs_for_mech(). * Return actual data for RFC5587 API. * Add new Windows version flags. * Add Key exchange also when wanting integrity only. * Drop support for GSS_C_MA_NOT_DFLT_MECH. The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). openSUSE-2023-48 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/WXCOTOTL4ZIZB65QEGM65YZZILOED4A3/ E-Mail link for openSUSE-SU-2023:0048-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1208278 SUSE Bug 1208278 https://bugzilla.suse.com/1208279 SUSE Bug 1208279 https://bugzilla.suse.com/1208280 SUSE Bug 1208280 https://bugzilla.suse.com/1208281 SUSE Bug 1208281 https://bugzilla.suse.com/1208282 SUSE Bug 1208282 https://www.suse.com/security/cve/CVE-2023-25563/ SUSE CVE CVE-2023-25563 page https://www.suse.com/security/cve/CVE-2023-25564/ SUSE CVE CVE-2023-25564 page https://www.suse.com/security/cve/CVE-2023-25565/ SUSE CVE CVE-2023-25565 page https://www.suse.com/security/cve/CVE-2023-25566/ SUSE CVE CVE-2023-25566 page https://www.suse.com/security/cve/CVE-2023-25567/ SUSE CVE CVE-2023-25567 page SUSE Package Hub 15 SP4 openSUSE Leap 15.4 gssntlmssp-1.2.0-bp154.2.3.1 gssntlmssp-devel-1.2.0-bp154.2.3.1 gssntlmssp-1.2.0-bp154.2.3.1 as a component of SUSE Package Hub 15 SP4 gssntlmssp-devel-1.2.0-bp154.2.3.1 as a component of SUSE Package Hub 15 SP4 gssntlmssp-1.2.0-bp154.2.3.1 as a component of openSUSE Leap 15.4 gssntlmssp-devel-1.2.0-bp154.2.3.1 as a component of openSUSE Leap 15.4 GSS-NTLMSSP is a mechglue plugin for the GSSAPI library that implements NTLM authentication. Prior to version 1.2.0, multiple out-of-bounds reads when decoding NTLM fields can trigger a denial of service. A 32-bit integer overflow condition can lead to incorrect checks of consistency of length of internal buffers. Although most applications will error out before accepting a singe input buffer of 4GB in length this could theoretically happen. This vulnerability can be triggered via the main `gss_accept_sec_context` entry point if the application allows tokens greater than 4GB in length. This can lead to a large, up to 65KB, out-of-bounds read which could cause a denial-of-service if it reads from unmapped memory. Version 1.2.0 contains a patch for the out-of-bounds reads. CVE-2023-25563 SUSE Package Hub 15 SP4:gssntlmssp-1.2.0-bp154.2.3.1 SUSE Package Hub 15 SP4:gssntlmssp-devel-1.2.0-bp154.2.3.1 openSUSE Leap 15.4:gssntlmssp-1.2.0-bp154.2.3.1 openSUSE Leap 15.4:gssntlmssp-devel-1.2.0-bp154.2.3.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/WXCOTOTL4ZIZB65QEGM65YZZILOED4A3/ https://www.suse.com/security/cve/CVE-2023-25563.html CVE-2023-25563 https://bugzilla.suse.com/1208278 SUSE Bug 1208278 GSS-NTLMSSP is a mechglue plugin for the GSSAPI library that implements NTLM authentication. Prior to version 1.2.0, memory corruption can be triggered when decoding UTF16 strings. The variable `outlen` was not initialized and could cause writing a zero to an arbitrary place in memory if `ntlm_str_convert()` were to fail, which would leave `outlen` uninitialized. This can lead to a denial of service if the write hits unmapped memory or randomly corrupts a byte in the application memory space. This vulnerability can trigger an out-of-bounds write, leading to memory corruption. This vulnerability can be triggered via the main `gss_accept_sec_context` entry point. This issue is fixed in version 1.2.0. CVE-2023-25564 SUSE Package Hub 15 SP4:gssntlmssp-1.2.0-bp154.2.3.1 SUSE Package Hub 15 SP4:gssntlmssp-devel-1.2.0-bp154.2.3.1 openSUSE Leap 15.4:gssntlmssp-1.2.0-bp154.2.3.1 openSUSE Leap 15.4:gssntlmssp-devel-1.2.0-bp154.2.3.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/WXCOTOTL4ZIZB65QEGM65YZZILOED4A3/ https://www.suse.com/security/cve/CVE-2023-25564.html CVE-2023-25564 https://bugzilla.suse.com/1208279 SUSE Bug 1208279 GSS-NTLMSSP is a mechglue plugin for the GSSAPI library that implements NTLM authentication. Prior to version 1.2.0, an incorrect free when decoding target information can trigger a denial of service. The error condition incorrectly assumes the `cb` and `sh` buffers contain a copy of the data that needs to be freed. However, that is not the case. This vulnerability can be triggered via the main `gss_accept_sec_context` entry point. This will likely trigger an assertion failure in `free`, causing a denial-of-service. This issue is fixed in version 1.2.0. CVE-2023-25565 SUSE Package Hub 15 SP4:gssntlmssp-1.2.0-bp154.2.3.1 SUSE Package Hub 15 SP4:gssntlmssp-devel-1.2.0-bp154.2.3.1 openSUSE Leap 15.4:gssntlmssp-1.2.0-bp154.2.3.1 openSUSE Leap 15.4:gssntlmssp-devel-1.2.0-bp154.2.3.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/WXCOTOTL4ZIZB65QEGM65YZZILOED4A3/ https://www.suse.com/security/cve/CVE-2023-25565.html CVE-2023-25565 https://bugzilla.suse.com/1208280 SUSE Bug 1208280 GSS-NTLMSSP is a mechglue plugin for the GSSAPI library that implements NTLM authentication. Prior to version 1.2.0, a memory leak can be triggered when parsing usernames which can trigger a denial-of-service. The domain portion of a username may be overridden causing an allocated memory area the size of the domain name to be leaked. An attacker can leak memory via the main `gss_accept_sec_context` entry point, potentially causing a denial-of-service. This issue is fixed in version 1.2.0. CVE-2023-25566 SUSE Package Hub 15 SP4:gssntlmssp-1.2.0-bp154.2.3.1 SUSE Package Hub 15 SP4:gssntlmssp-devel-1.2.0-bp154.2.3.1 openSUSE Leap 15.4:gssntlmssp-1.2.0-bp154.2.3.1 openSUSE Leap 15.4:gssntlmssp-devel-1.2.0-bp154.2.3.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/WXCOTOTL4ZIZB65QEGM65YZZILOED4A3/ https://www.suse.com/security/cve/CVE-2023-25566.html CVE-2023-25566 https://bugzilla.suse.com/1208281 SUSE Bug 1208281 GSS-NTLMSSP, a mechglue plugin for the GSSAPI library that implements NTLM authentication, has an out-of-bounds read when decoding target information prior to version 1.2.0. The length of the `av_pair` is not checked properly for two of the elements which can trigger an out-of-bound read. The out-of-bounds read can be triggered via the main `gss_accept_sec_context` entry point and could cause a denial-of-service if the memory is unmapped. The issue is fixed in version 1.2.0. CVE-2023-25567 SUSE Package Hub 15 SP4:gssntlmssp-1.2.0-bp154.2.3.1 SUSE Package Hub 15 SP4:gssntlmssp-devel-1.2.0-bp154.2.3.1 openSUSE Leap 15.4:gssntlmssp-1.2.0-bp154.2.3.1 openSUSE Leap 15.4:gssntlmssp-devel-1.2.0-bp154.2.3.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/WXCOTOTL4ZIZB65QEGM65YZZILOED4A3/ https://www.suse.com/security/cve/CVE-2023-25567.html CVE-2023-25567 https://bugzilla.suse.com/1208282 SUSE Bug 1208282