Threats Tagged 'openeuler-20-03-lts-sp4'

Unbound is a validating, recursive, caching DNS resolver. It is designed to be fast and lean and incorporates modern features based on open standards. To help increase online privacy, Unbound supports DNS-over-TLS which allows clients to encrypt their communication. Unbound is available for most platforms such as FreeBSD, OpenBSD, NetBSD, MacOS, Linux and Microsoft Windows. Unbound is a totally free, open source software under the BSD license. It doesn't make custom builds or provide specific features to paying customers only. Security Fix(es): In NLnet Labs Unbound up to and including 1.26.0, a vulnerability was found in the DNSSEC validator that enables denial of service and possible remote code execution as a result of digesting DNSKEYs. A DNSKEY with an owner compression pointer to its own RDATA can overflow the digest buffer. Remote code execution is possible through attacker controlled data. An adversary can exploit the vulnerability by controlling a malicious zone and querying a vulnerable Unbound.(CVE-2026-81642)

The alsa-lib is a library to interface with ALSA in the Linux kernel and virtual devices using a plugin system. More detail: https://alsa.opensrc.org/Alsa-lib Security Fix(es): alsa-lib through 1.2.16.1 contains a stack buffer overflow in the __snd_ctl_ascii_elem_id_parse() function that writes one byte past a 64-byte buffer when parsing a name= field with 64 or more characters. Attackers can supply a long control-element identifier string through saved state files or command-line arguments to overwrite adjacent stack memory and crash the calling process.(CVE-2026-90781)

389-ds-base is an LDAPv3 compliant server which includes the LDAP server and command line utilities for server administration. Security Fix(es): A flaw was found in 389 Directory Server. The dereference control plugin does not check for allocation failure before using a BER structure, allowing an unauthenticated remote attacker to crash the LDAP server when the system is under memory pressure.(CVE-2026-11788) A flaw was found in 389 Directory Server in the __aclp__normalize_acltxt() function of aclparse.c. A malformed ACI (Access Control Instruction) string can trigger heap-buffer-overflow writes and reads during ACI parsing. The function fails to validate that the ACI keyword has sufficient length after whitespace stripping, leading to a 1-byte out-of-bounds write and subsequent out-of-bounds reads. An authenticated user with write access to the aci attribute could send a crafted ACI value to silently corrupt heap memory in the directory server process.(CVE-2026-12528)

PCRE2 is a re-working of the original PCRE1 library to provide an entirely new API. Since its initial release in 2015, there has been further development of the code and it now differs from PCRE1 in more than just the API. PCRE2 is written in C, and it has its own API. There are three sets of functions, one for the 8-bit library, which processes strings of bytes, one for the 16-bit library, which processes strings of 16-bit values, and one for the 32-bit library, which processes strings of 32-bit values. Unlike PCRE1, there are no C++ wrappers. Security Fix(es): PCRE2 before 10.48 has a pcre2_match out-of-bounds read after a JIT fallback when an attacker can provide invalid UTF data.(CVE-2026-89156) PCRE2 before 10.48, on 32-bit platforms, has a pcre2_pattern_convert out-of-bounds write when an attacker can provide a large pattern.(CVE-2026-89157) PCRE2 before 10.48, on 32-bit platforms, has a pcre2_compile_32 integer overflow and resultant out-of-bounds write.(CVE-2026-89158) PCRE2 before 10.48 has a pcre2_match out-of-bounds read during the PCRE2_MATCH_INVALID_UTF matching of an invalid UTF subject.(CVE-2026-89160) In PCRE2 before 10.48, pcre2_jit_match mishandles a previously copied subject being passed in as a context. An incorrect free operation can occur.(CVE-2026-89161)

A use-after-free vulnerability (CVE-2025-10729) exists in the Qt SVG module, which handles rendering and displaying SVG images. The flaw occurs when the module parses a <pattern> node not properly nested under a structural node, leading to potential use-after-free conditions. This vulnerability affects multiple versions of qt5-qtsvg and has been rated critical. A security update addressing this issue is available from Red Hat.

Flatpak before version 1.18.1 contains a vulnerability that allows a malicious sandboxed application to gain arbitrary read and write access to host files, potentially leading to arbitrary code execution on the host. This issue arises due to missing symlink protection in app data directories created within the sandbox, which can be exploited to redirect directory mounts to arbitrary host locations.

GNU Emacs before certain patched versions contains an integer overflow vulnerability in its PBM/PPM/PGM image loader. This flaw allows an attacker to leak heap memory contents by supplying a crafted image with large dimensions and an elevated max color index. The vulnerability arises because the image loader uses signed integer arithmetic that can wrap to a negative number, bypassing bounds checks and causing out-of-bounds heap reads. This memory leak is then rendered as pixel color values on screen. A patch is available to address this issue.

Libwebsockets (LWS) is a flexible, lightweight pure C library for implementing modern network protocols easily with a tiny footprint, using a nonblocking event loop. Security Fix(es): libwebsockets HTTP/2 HPACK Path Header Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of libwebsockets. Authentication is not required to exploit this vulnerability. The specific flaw exists within the parsing of HTTP/2 HPACK path header. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-31036.(CVE-2026-19773) A vulnerability classified as critical was found in warmcat libwebsockets 4.5.0. The vulnerability is in the function report_raw_cbor in lib/misc/lecp.c when handling LECP CBOR recordings. This issue allows an out-of-bounds write (CWE-787), which could affect confidentiality, integrity, and availability. A proof-of-concept exploit is available.(CVE-2026-78161)

A heap-based buffer overflow vulnerability exists in the eap-mschapv2 plugin (client-side) of strongSwan before version 6.0.3. This occurs due to an integer underflow triggered by a malicious EAP-MSCHAPv2 server sending a crafted message of size 6 through 8. The vulnerability affects strongSwan versions prior to 5.7.2-21.oe2003sp4 and has a high severity rating with a CVSS score of 8.1.

Implements JWK, JWS, JWE specifications with python-cryptography Security Fix(es): A flaw was found in jwcrypto. The JWK.import_key() function validates the key_ops JWK member for duplicate values using an algorithm with O(n^2) time complexity, and the length of key_ops is not bounded. A remote, unauthenticated attacker can supply a JWK with a large key_ops array to an application that passes attacker-controlled key material to a public key-import API (reachable via ECDH-ES key agreement, OIDC dynamic client registration, DPoP, or ACME account key registration, among others) to consume excessive CPU time, resulting in a denial of service.(CVE-2026-92091)