CVE-2026-31705
CriticalCVSS 9.8Summary
W jądrze Linuksa naprawiono podatność, która pozwalała na zapis poza granicami bufora w funkcji smb2_get_ea(). Problem występował z powodu braku sprawdzenia długości bufora przed zastosowaniem wyrównania pamięci, co mogło prowadzić do nadpisania sąsiedniej pamięci jądra.
Risk Assessment
Podatność ta może prowadzić do nieautoryzowanego dostępu do pamięci jądra, co stwarza ryzyko destabilizacji systemu oraz potencjalnych ataków na integralność danych.
Recommendation
Zaleca się aktualizację jądra Linuksa do najnowszej wersji, w której wprowadzono poprawki eliminujące tę podatność oraz wdrożenie dodatkowych środków zabezpieczających w celu monitorowania i ochrony pamięci jądra.
Related vulnerabilities
- CVE-2026-19572Critical
A security vulnerability has been identified in FlexNet Publisher lmadmin. The vulnerability exists in a SOAP handler, where a hardcoded authentication bypass could allow an unauthenticated user to obtain a privileged administrator session without providing valid credentials.
- CVE-2026-16516Critical
wolfSSH does not validate that the ECDSA curve identifier in a KEXDH_REPLY host key blob matches the algorithm negotiated during key exchange. An active man-in-the-middle attacker can substitute a host key blob containing a different ECDSA curve, causing the client to import the key on the wrong curve, and because the attacker controls the private key for the substituted curve, signature verification passes.
- CVE-2026-14911Critical
Improper Neutralization of Input During Web Page Generation (Cross-site Scripting) in ASUS router modules allows a remote attacker to read DOM information, modify router settings, and cause a denial-of-service condition when an authenticated user visits a crafted URL.
- CVE-2026-19386Critical
A stack-based buffer overflow in the ASUS router modules allows an authenticated nearby user to execute arbitrary code via a crafted configuration file upload that exceeds the expected buffer size.
- CVE-2026-105324Critical
An HTTP header injection vulnerability in start-page-loader.cgi of ADM allows an unauthenticated remote attacker to read arbitrary files on the host system. By sending a crafted HTTP request with injected headers via the state parameter, the attacker can leverage the underlying web server's X-Sendfile mechanism to retrieve sensitive files without authentication.
- CVE-2026-93674Critical
IBM Langflow OSS 1.0.0 through 1.12.2 could allow a remote attacker to execute arbitrary code due to improper neutralization of special elements used in an OS command.
- CVE-2026-104334Critical
IBM Langflow OSS 1.0.0 through 1.12.2 could allow a remote attacker to execute arbitrary code due to improper control of code generation.
- CVE-2026-106501Critical
Backstage is an open framework for building developer portals. Prior to versions 3.3.1, 3.4.1, 4.0.3 and 4.1.0, the @backstage/plugin-scaffolder-backend package is affected by sensitive information exposure in scaffolder. An authenticated Backstage user who can read another user's Scaffolder task may receive internal execution data.
- CVE-2026-105812Critical
Improper control of code generation in the agent import functionality of Amazon Bedrock AgentCore Starter Toolkit before 0.3.14 might allow an authenticated same-account actor to execute arbitrary code when a user imports and runs or deploys a Bedrock Agent, via crafted configuration values incorporated into generated Python source without safe literal encoding.
- CVE-2026-79805Critical
An authenticated path traversal vulnerability exists in ClearPass Policy Manager. Successful exploitation could allow an attacker to read and modify certain files on the underlying operating system.
Original NVD description (English source)
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix out-of-bounds write in smb2_get_ea() EA alignment smb2_get_ea() applies 4-byte alignment padding via memset() after writing each EA entry. The bounds check on buf_free_len is performed before the value memcpy, but the alignment memset fires unconditionally afterward with no check on remaining space. When the EA value exactly fills the remaining buffer (buf_free_len == 0 after value subtraction), the alignment memset writes 1-3 NUL bytes past the buf_free_len boundary. In compound requests where the response buffer is shared across commands, the first command (e.g., READ) can consume most of the buffer, leaving a tight remainder for the QUERY_INFO EA response. The alignment memset then overwrites past the physical kvmalloc allocation into adjacent kernel heap memory. Add a bounds check before the alignment memset to ensure buf_free_len can accommodate the padding bytes. This is the same bug pattern fixed by commit beef2634f81f ("ksmbd: fix potencial OOB in get_file_all_info() for compound requests") and commit fda9522ed6af ("ksmbd: fix OOB write in QUERY_INFO for compound requests"), both of which added bounds checks before unconditional writes in QUERY_INFO response handlers.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS