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SUSE SLED15: cryptsetup / cryptsetup-doc / cryptsetup-lang / cryptsetup-ssh / etc (SUSE-SU-2026:2777-1)

critical Nessus Plugin ID 325371

Synopsis

The remote SUSE host is missing a security update.

Description

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2026:2777-1 advisory.

 This update for cryptsetup, s390-tools fixes the following issue

 Security fixes:

 - CVE-2026-41676: openssl: `Deriver:derive` and `PkeyCtxRef:derive` can overflow short buffers on OpenSSL 1.1.1 (bsc#1270185).

 Changes for s390-tools:

 - Upgrade s390-tools to version 2.41.0 (jsc#PED-15860)
 - Automatically set appropriate MTU for HSCI (bsc#1259314)
 - Changes of existing tools:
 * chreipl: Make --bootparms work for ECKD re-IPL
 * cpacfstats: Add 'unauthorized' state to CPU-MF counters
 * cpictl: Detect RHCOS using VARIANT_ID
 * hsci: Automatically set appropriate MTU for HSCI
 * libutil: Add util_readlink() and util_readlinkat() helpers
 * libutil: Add util_startswith() to util_str
 * libutil: Add utility parsing functions
 * lschp: Add support for structured output (--format)
 * lsreipl: Suppress 'clear' output if not supported
 * pvimg: Add '--format text' support to 'pvimg info'
 * pvimg: Add '--print-schema ' option to 'pvimg info'
 * pvimg: Add '--show-secrets' flag to 'pvimg info'
 * pvimg: Provide improved JSON output to 'pvimg info --format json'
 * pvinfo: Improve User experience on non-SE enabled systems
 * zipl/ngdump: Ensure ext4 file system is used on dump partition
 * zkey: Add support for integrity protected disks using HMAC keys
 - Bug Fixes:
 * cpumf/pai: Handle different size of perf_event_attr
 * lscss: Fix memory leak
 * zipl: Fix dump job on tape devices
 --- s390-tools 2.40 includes ---
 - Add new tools / libraries:
 * Add project-wide .clang-tidy configuration
 * libutil: Introduce util_time for time related functionality
 * libutil: Introduce zsh/bash autocompletion tooling based on util_opt
 * pvinfo: Tool to display Secure Execution system information
 * pvverify: Tool to verify host-key documents
 - Changes of existing tools:
 * cpumf: Implement zsh and bash autocompletion
 * dasdfmt: Implement zsh and bash autocompletion
 * dbginfo.sh: Add NetworkManager and netplan
 * dbginfo.sh: Add kvm_stat
 * dbginfo.sh: Adding stp time information
 * dbginfo.sh: Simplify procfs collection
 * hyptop: Add physical information row
 * hyptop: Calculate sample time delta for physical partition
 * hyptop: Replace long option names using _ with - for consistency For example: --cpu_types > --cpu-types (Options with _ are still supported for backward compatibility)
 * libekmfweb: Add function to validate a certificate against the identity key
 * netboot: Add longer kernel command lines support
 * udev/rules.d: Make virtio-blk devices non-rotational
 * udev/rules.d: Set default io scheduler to 'none' for virtio-blk
 * ziomon: Add support to sample device symlinks (/dev/disk/...)
 * ziorep_config: Add fcp-lun details to -M option output
 * ziorep_config: Add port_id and failed attributes to -A option output
 * netboot: Install on non-s390 architectures
 - Bug Fixes:
 * lib(ekmfweb|kmipclient): Use ln without -r
 * s390-tools: Fix various compilation issues with musl libc
 * zipl/boot: Fix unused loadparm when SCLP line-mode console is absent
 --- s390-tools 2.39 includes ---
 - Changes of existing tools:
 * chpstat: Add options to select IEC units for scaling (SI units are default)
 * chzdev: Introduce --no-module-load option
 * cpi: Disable CPI for SEL guests by default
 * dbginfo.sh: Enhance logging on timeout triggered
 * iucvterm: Install symlink for lsiucvallow.8 man page
 * lshwc: Add command line flag to specify individual counters
 * lspai: Add command line flag for delta values
 * lspai: Add command line flag for short counter names
 * lspai: Add command line flag to specify individual counters
 * lspai: Add command line flags for all cpus
 * lspai: Add command line flags for hexadecimal output
 * man: Use CR for constant width font
 * pvimg: Add '--image-key' option
 * zdev: Allow dynamic control of module load
 * zipl/boot: Fix EBCDIC code page 500 conversion and decrease size by 200 bytes
 * zipl: Add support of heterogeneous mirrors (remove technical limitations on mirrored targets, thus allowing mirrored devices consist of partitions at different offsets on disks of different types and geometry).
 * zkey: Add support for generating and importing exportable secure keys
 - Bug Fixes:
 * chpstat: Fix scaling of DPU utilization calculation
 * zdev/dracut: Prevent loading of unused kernel modules
 * zdev: Fix double device configuration on DPM systems
 * zdev: Fix double device configuration with rd.dasd
 * zipl_helper.device-mapper: Fix segfault in an error path
 --- s390-tools 2.38 includes ---
 * Add new tools
 - udev: New rule to set newly hotplugged CPUs online
 - zmemtopo: Display memory topology information
 - zpwr: Display power readings of a partition and CPC
 * Removed tools / features
 - check_hostkeydoc: Remove installation target
 - scsi_logging_level: Delete SCSI logging script (available in sg3_utils)
 - zdump: Drop build_arch for s390 DASD dumps
 - zdump: Drop non-extended multi-volume DASD dump support
 - zdump: Drop support of 32-bit dump architecture
 - zdump: Drop support of non-extended single volume DASD dumpers
 - zdump: Drop support of obsolete dumps and dumpers
 * Changes of existing tools / libraries
 - Various man-pages fixes
 - check_hostkeydoc: Add deprecation warning
 - check_hostkeydoc: Move to scripts directory
 - cpuplugd: Allow cpu hotplugging on systems without polarization
 - dbginfo.sh: Add Ubuntu snap tool
 - dbginfo.sh: Add missing config data and logs
 - dbginfo.sh: Reworking the container section
 - dbginfo.sh: Update for network commands
 - dbginfo.sh: Updating info for disks and lvm
 - libutil: Add machine type definition for machines 9175 and 9176
 - lscpumf: Add support for IBM z17 counter sets
 - lshwc: Add command line flag for run time
 - lshwc: Add flags to display counter values in hex
 - lshwc: Add output '--format' option
 - lshwc: Add support for delta counter value display
 - lspai: Add output '--format' option
 - lsreipl: Add secure boot state to output
 - lswhc: Add short names to lshwc output
 - pv_tools: Add Bash and Zsh completions
 - pvapconfig: Add '--unbind' option
 - pvimg/boot: Print error messages from stage3a bootloader
 - pvimg: Add support for CCK update
 - pvsecret: Add support for CCK update
 - pvsecret: Allow retrieving secrets by index; warn for duplicated entries
 - pvsecret: Deny adding secrets with duplicated secret IDs
 - zdev: Add support for virtio devices
 - zipl: Enhance mirror support
 - zipl: Implement '--dry-run' option for all dump jobs
 - zipl_helper.device-mapper: Support mirrors over NVMe devices
 - zkey/dracut: Add a dracut config file for zkey
 - zkey/initramfs: Update initramfs hook to correct drivers and include zkey plugins
 - zkey: Add support for converting a clear-key LUKS2 volume to use a secure key
 * Bug Fixes
 - chpstat: Add missing CMG 5 data fields
 - chpstat: Fix DPU utilization calculation
 - libutil/util_file: Handle over-read in util_file_read_fd()
 - pvattest: Fix successful 'check' evaluation
 - pvsecret: Fix some edge cases for plaintext keys
 - zipl_helper.device-mapper: Fix imprecise is_device_mapper() predicate
 - zkey: Fix EP11 secure key reencipher function
 - zpcictl: Fix command line parsing for invalid options
 - Amended the .spec file
 * 'Installing' all shipped rules from etc/udev/rules.d to /usr/lib/udev/rules.d
 * BuildRequires: cryptsetup-devel > 2.8.2
 - Updated the code for IBM z17 machine type 9176:
 * read_values.c
 * cputype
 * Renamed cputype.1 to cputype.8 and amended
 * Amended read_values.8
 - 'Improved' the read_values.c:
 * Added functionalities for '-a' and '-L attributes'
 - Removed legacy suse_version and sle_version conditionals, standardizing on UsrMerge paths.
 - Reworked and combined all s390-tools patches (jsc#PED-14586)
 - Added new combined and reworked patches
 - Removed obsolete patches
 - Applied patches (bsc#1261813)
 * Replace sort_field option with sort
 * hyptop opts Fix long command line option abbreviations
 - Removed obsolete patch
 - Re-vendor-ed vendor.tar.zst

 Changes for cryptsetup:

 - Update to 2.8.4: (jsc#PED-15889)
 * Fix integritysetup resize (grow) of the device if integrity bitmap mode is used. Increasing the integrity device in bitmap mode did not work as integritysetup incorrectly used journal settings that were not applicable.
 * Fix device size status reports in cryptsetup and integritysetup.
 If the device uses a sector size larger than 512 bytes, the newly reported byte sizes (introduced in 2.8.0) in the status report were incorrectly displayed.
 * BITLK: Fix unlocking BitLocker device with recovery passphrase.
 If the recovery passphrase was present in the first keyslot, the device failed to unlock. This bug was introduced in 2.8.2 with Clear Key support.

 - Update to 2.8.3:
 * Stable bug-fix release with minor extensions.
 - Update to 2.8.2:
 * BITLK: Fix for BitLocker metadata validation on big-endian systems.

 - Update to 2.8.1:
 * Fix status and deactivation of TCRYPT (VeraCrypt compatible) devices that use chained ciphers.
 * Fix unlocking BITLK (BitLocker compatible) devices with multibyte UTF8 characters in the passphrase.
 * Do not allow activation of the LUKS2 device if the used keyslot is not encrypted (it uses a null cipher).
 - Such a configuration cannot be created by cryptsetup, but can be crafted outside of it.
 - Null cipher is sometimes used to create an empty container for later reencryption.
 - Only an empty passphrase can activate such a container (the same as in LUKS1).
 * Do not silently decrease PBKDF parallel cost (threads) if set by an option.
 - The maximum parallel cost is limited to 4 threads.
 * Fixes to configuration and installation scripts.
 - Meson and autoconf tools now properly support --prefix option for temporary directory installation.
 - Multiple fixes and cleanups to config.h for compatibility between Meson and autoconf.
 - Fix the luks2-external-tokens-path Meson option to work the same as in autoconf.
 - Fix Meson install for tool binaries, install fvault2Open man page and include test/fuzz/meson.build in release.
 * Major update to manual pages.
 - Try to explain the PBKDF hardcoded limits.
 - Add a better explanation for automatic integrity tag recalculation.
 - Mention crypt/verity/integritytab.
 - Remove or reformulate some misleading warnings present only with old and no longer supported kernels.
 - Clarify that some commands do not wipe data and unify OPAL reset wording.
 - Clarify the --label option.
 - There are also many other grammar and stylistic fixes to unify the man-page style.
 * Fixes for false-positive and annoying (optional) warnings added in recent compilers.

 - Update to 2.8.0:
 * Full release notes in:
 - https://cdn.kernel.org/pub/linux/utils/cryptsetup/v2.8/v2.8.0-ReleaseNotes
 * Introduce support for inline mode (use HW sectors with additional hardware metadata space).
 * Finalize use of keyslot context API.
 * Make all keyslot context types fully self-contained.
 * Add --key-description and --new-key-description cryptsetup options.
 * Support more precise keyslot selection in reencryption initialization.
 * Allow reencryption to resume using token and volume keys.
 * Cryptsetup repair command now tries to check LUKS keyslot areas for corruption.
 * Opal2 SED: PSID keyfile is now expected to be 32 alphanumeric characters.
 * Opal2: Avoid the Erase method and use Secure Erase for locking range.
 * Opal2: Fix some error description (in debug only).
 * Opal2: Do not allow deferred deactivation.
 * Allow --reduce-device-size and --device-size combination for reencryption (encrypt) action.
 * Fix the userspace storage backend to support kernel 'capi:' cipher specification format.
 * Disallow conversion from LUKS2 to LUKS1 if kernel 'capi:' cipher specification is used.
 * Explicitly disallow kernel 'capi:' cipher specification format for LUKS2 keyslot encryption.
 * Do not allow conversion of LUKS2 to LUKS1 if an unbound keyslot is present.
 * cryptsetup: Adjust the XTS key size for kernel 'capi:' cipher specification.
 * Remove keyslot warning about possible failure due to low memory.
 * Do not limit Argon2 KDF memory cost on systems with more than 4GB of available memory.
 * Properly report out of memory error for cryptographic backends implementing Argon2.
 * Avoid KDF2 memory cost overflow on 32-bit platforms.
 * Do not use page size as a fallback for device block size.
 * veritysetup: Check hash device size in advance.
 * Print a better error message for unsupported LUKS2 AEAD device resize.
 * Optimize LUKS2 metadata writes.
 * veritysetup: support --error-as-corruption option.
 * Report all sizes in status and dump command output in the correct units.
 * Add --integrity-key-size option to cryptsetup.
 * Support trusted; encrypted keyrings for plain devices.
 * Support plain format resize with a keyring key.
 * TCRYPT: Clear mapping of system-encrypted partitions.
 * TCRYPT: Print all information from the decrypted metadata header in the tcryptDump command.
 * Always lock the volume key structure in memory.
 * Do not run direct-io read check on block devices.
 * Fix a possible segfault in deferred deactivation.
 * Exclude cipher allocation time from the cryptsetup benchmark.
 * Add Mbed-TLS optional crypto backend.
 * Fix the wrong preprocessor use of #ifdef for config.h processed by Meson.
 * Reorganize license files. The license text files are now in docs/licenses.
 The COPYING file in the root directory is the default license.
 * Remove cc-by-sa-4.0.txt as already shipped now in docs/licenses and named as COPYING.CC-BY-SA-4.0.
 * Libcryptsetup API extensions. The libcryptsetup API is backward compatible with all existing symbols. Due to the self-contained memory allocation, these symbols have the new version:
 - crypt_keyslot_context_init_by_passphrase;
 - crypt_keyslot_context_init_by_keyfile;
 - crypt_keyslot_context_init_by_token;
 - crypt_keyslot_context_init_by_volume_key;
 - crypt_keyslot_context_init_by_signed_key;
 - crypt_keyslot_context_init_by_keyring;
 - crypt_keyslot_context_init_by_vk_in_keyring;
 * New symbols:
 - crypt_format_inline
 - crypt_get_old_volume_key_size
 - crypt_reencrypt_init_by_keyslot_context
 - crypt_safe_memcpy
 * New defines:
 - CRYPT_ACTIVATE_HIGH_PRIORITY
 - CRYPT_ACTIVATE_ERROR_AS_CORRUPTION
 - CRYPT_ACTIVATE_INLINE_MODE
 - CRYPT_REENCRYPT_CREATE_NEW_DIGEST
 * New requirement flag:
 - CRYPT_REQUIREMENT_INLINE_HW_TAGS

 - Add a dependency on device-mapper to libcryptsetup12 to install the required device-mapper udev rules. (bsc#1241612)

 - Update to 2.7.5:
 * Fix possible online reencryption data corruption (only in 2.7.x).
 In some situations (initializing a suspended device-mapper device), cryptsetup disabled direct-io device access. This caused unsafe online reencryption operations that could lead to data corruption.
 The code now adds strict checks (and aborts the operation) and changes direct-io detection code to prevent data corruption.
 * Fix a clang compilation error in SSH token plugin.
 As clang linker treats missing symbols as errors, the linker phase for the SSH token failed as the optional cryptsetup_token_buffer_free was not defined.
 * Fix crypto backend initialization in crypt_format_luks2_opal API call.

 - Update to 2.7.4:
 * Detect device busy failure for device-mapper table-referenced devices.
 * Fix shared activation for dm-verity devices.
 * Add --shared option for veritysetup open action.
 * Do not use exclusive flag for the allocated backing loop files.
 * Fixes for problems found by static analyzers and Valgrind.
 * Fixes to tests and CI scripts.
 - Use fdupes to link identical man pages.

 - Update to 2.7.3:
 * Do not allow formatting LUKS2 with Opal SED (hardware encryption) if the reported logical sector size for the block device and Opal encryption logical block differs.
 * Fixes to wiping LUKS2 headers after Opal locking area erase.
 * Mention the need for possible PSID revert before Opal format for some drives (man page).
 * Fix Bitlocker-compatible code to ignore newly seen metadata entries.
 * Fix interactive query retry if LUKS2 unbound keyslot is present.
 * Detect unsupported zoned devices for LUKS header devices.
 * Allow 'capi' cipher format for benchmark command and fix parsing of plain IV in 'capi' format.
 * Add support for HCTR2 encryption mode.
 * Source code now uses SPDX license identifiers instead of full license preambles.
 * Fix missing includes for cryptographic backend that could cause compilation errors for some systems.
 * Fix tests to work correctly in FIPS mode with recent OpenSSL 3.2.
 * Fix various (mostly false positive) issues detected by Coverity.

 - License: Replace legacy 'AND SUSE-GPL-2.0-with-openssl-exception' with 'WITH cryptsetup-OpenSSL-exception' (the official SPDX exception).

 - update to 2.7.2:
 * Fix activation of OPAL-only encrypted LUKS device with tokens
 * Fix formatting of OPAL devices with 4096-byte sector size
 * Fix incorrect OPAL locking range alignment calculation if used over an unaligned device partition.
 * Do not check the passphrase quality for OPAL Admin PIN, as this passphrase already exists.
 * Update license for FAQ document to CC BY-SA 4.0.
 NOTE: Please note that with OPAL-only (--hw-opal-only) encryption, the configured OPAL administrator PIN (passphrase) allows unlocking all configured locking ranges without LUKS keyslot decryption (without knowledge of LUKS passphrase).
 Because of many observed problems with compatibility, cryptsetup currently DOES NOT use OPAL single-user mode, which would allow such decoupling of OPAL admin PIN access.

 - Update to 2.7.1:
 * Fix interrupted LUKS1 decryption resume.
 With the replacement of the cryptsetup-reencrypt tool by the cryptsetup reencrypt command, resuming the interrupted LUKS1 decryption operation could fail. LUKS2 was not affected.
 * Allow --link-vk-to-keyring with --test-passphrase option.
 This option allows uploading the volume key in a user-specified kernel keyring without activating the device.
 * Fix crash when --active-name was used in decryption initialization.
 * Updates and changes to man pages, including indentation, sorting options alphabetically, fixing mistakes in crypt_set_keyring_to_link, and fixing some typos.
 * Fix compilation with libargon2 when --disable-internal-argon2 was used.
 * Do not require installed argon2.h header and never compile internal libargon2 code if the crypto library directly supports Argon2.
 * Fixes to regression tests to support older Linux distributions.

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://bugzilla.suse.com/1241612

https://bugzilla.suse.com/1259314

https://bugzilla.suse.com/1261813

https://bugzilla.suse.com/1270185

https://lists.suse.com/pipermail/sle-updates/2026-July/048018.html

https://www.suse.com/security/cve/CVE-2026-41676

Plugin Details

Severity: Critical

ID: 325371

File Name: suse_SU-2026-2777-1.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 7/7/2026

Updated: 7/7/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.07

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-41676

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: Critical

Base Score: 9.2

Threat Score: 7.2

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:osasnmpd, p-cpe:/a:novell:suse_linux:s390-tools-chreipl-fcp-mpath, p-cpe:/a:novell:suse_linux:libcryptsetup12-32bit, p-cpe:/a:novell:suse_linux:libekmfweb1, p-cpe:/a:novell:suse_linux:libkmipclient1, p-cpe:/a:novell:suse_linux:s390-tools-genprotimg-data, p-cpe:/a:novell:suse_linux:cryptsetup-doc, p-cpe:/a:novell:suse_linux:cryptsetup-ssh, p-cpe:/a:novell:suse_linux:s390-tools-hmcdrvfs, p-cpe:/a:novell:suse_linux:libcryptsetup-devel, p-cpe:/a:novell:suse_linux:cryptsetup, p-cpe:/a:novell:suse_linux:libekmfweb1-devel, p-cpe:/a:novell:suse_linux:s390-tools, p-cpe:/a:novell:suse_linux:s390-tools-zdsfs, p-cpe:/a:novell:suse_linux:libcryptsetup12, p-cpe:/a:novell:suse_linux:cryptsetup-lang, cpe:/o:novell:suse_linux:15

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 7/6/2026

Vulnerability Publication Date: 4/22/2026

Reference Information

CVE: CVE-2026-41676

SuSE: SUSE-SU-2026:2777-1