138 matches found
SUSE-SU-2026:21164-1 Security update for glibc
This update for glibc fixes the following issues: Security fixes: - CVE-2026-4437: incorrect DNS response parsing via crafted DNS server response bsc1260078. - CVE-2026-4438: invalid DNS hostname returned via gethostbyaddr functions bsc1260082. Other fixes: - nss: Missing checks in...
SUSE-SU-2026:21019-1 Security update for glibc
This update for glibc fixes the following issues: Security fixes: - CVE-2026-4437: incorrect DNS response parsing via crafted DNS server response bsc1260078. - CVE-2026-4438: invalid DNS hostname returned via gethostbyaddr functions bsc1260082. Other fixes: - nss: Missing checks in...
SUSE-SU-2026:20999-1 Security update for glibc
This update for glibc fixes the following issues: Security fixes: - CVE-2026-4437: incorrect DNS response parsing via crafted DNS server response bsc1260078. - CVE-2026-4438: invalid DNS hostname returned via gethostbyaddr functions bsc1260082. Other fixes: - nss: Missing checks in...
CVE-2026-34397
Himmelblau is an interoperability suite for Microsoft Azure Entra ID and Intune. From versions 2.0.0-alpha to before 2.3.9 and 3.0.0-alpha to before 3.1.1, there is a conditional local privilege escalation vulnerability in an edge-case naming collision. Only authenticated himmelblau users whose...
CVE-2026-34397 himmelblau: NSS fake-primary group lookup reintroduces name collision risk
Himmelblau is an interoperability suite for Microsoft Azure Entra ID and Intune. From versions 2.0.0-alpha to before 2.3.9 and 3.0.0-alpha to before 3.1.1, there is a conditional local privilege escalation vulnerability in an edge-case naming collision. Only authenticated himmelblau users whose...
CVE-2026-34397 himmelblau: NSS fake-primary group lookup reintroduces name collision risk
Himmelblau is an interoperability suite for Microsoft Azure Entra ID and Intune. From versions 2.0.0-alpha to before 2.3.9 and 3.0.0-alpha to before 3.1.1, there is a conditional local privilege escalation vulnerability in an edge-case naming collision. Only authenticated himmelblau users whose...
Himmelblau 安全漏洞
Himmelblau is an open-source Azure Entra ID authentication module developed by Himmelblau. There is a security vulnerability in Himmelblau, which stems from conditional local privilege escalation due to name conflicts in edge scenarios. If the mapped CN or short name matches the name of a...
CVE-2026-4438 gethostbyaddr and gethostbyaddr_r return invalid DNS hostnames
Calling gethostbyaddr or gethostbyaddrr with a configured nsswitch.conf that specifies the library's DNS backend in the GNU C library version 2.34 to version 2.43 could result in an invalid DNS hostname being returned to the caller in violation of the DNS specification...
CVE-2026-4437 gethostbyaddr and gethostbyaddr_r may incorrectly handle DNS response
Calling gethostbyaddr or gethostbyaddrr with a configured nsswitch.conf that specifies the library's DNS backend in the GNU C Library version 2.34 to version 2.43 could, with a crafted response from the configured DNS server, result in a violation of the DNS specification that causes the...
CVE-2026-3904
A flaw was found in glibc. When calling NSS-backed functions that support caching via nscd, the nscd client under high load on x8664 systems may call the memcmp function on inputs that are concurrently modified by other processes or threads, causing a crash and resulting in a denial of service...
UBUNTU-CVE-2026-3904
Calling NSS-backed functions that support caching via nscd may call th...
📄 sudo 1.9.17 chroot Privilege Escalation
This Metasploit module exploits CVE-2025-32463, a local privilege escalation vulnerability in Sudo's chroot functionality. The vulnerability allows attackers to load malicious NSS Name Service Switch modules from within a chroot environment, leading to arbitrary code execution as root...
OESA-2026-1266 glibc security update
The GNU C Library project provides the core libraries for the GNU system and GNU/Linux systems, as well as many other systems that use Linux as the kernel. These libraries provide critical APIs including ISO C11, POSIX.1-2008, BSD, OS-specific APIs and more. These APIs include such foundational...
CVE-2026-24401
Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. In versions 0.9rc2 and below, avahi-daemon can be crashed via a segmentation fault by sending an unsolicited mDNS response containing a recursive CNAME record, where the alias and canonica...
CVE-2026-0915
Calling getnetbyaddr or getnetbyaddrr with a configured nsswitch.conf that specifies the library's DNS backend for networks and queries for a zero-valued network in the GNU C Library version 2.0 to version 2.42 can leak stack contents to the configured DNS resolver...
📄 sudo 1.9.17 Local Privilege Escalation
sudo version 1.9.17 local privilege escalation proof of concept exploit that leverages NSS module loading. ============================================================================================================================================= | Title : sudo 1.9.17 local Privilege Escalation...
Siemens SIMATIC S7-1500 Use After Free (CVE-2023-4806)
A flaw was found in glibc. In an extremely rare situation, the getaddrinfo function may access memory that has been freed, resulting in an application crash. This issue is only exploitable when a NSS module implements only the nssgethostbyname2r and nssgetcanonnamer hooks without implementing the...
[SECURITY] Fedora 43 Update: sssd-2.11.1-4.fc43
Provides a set of daemons to manage access to remote directories and authentication mechanisms. It provides an NSS and PAM interface toward the system and a pluggable back end system to connect to multiple different account sources. It is also the basis to provide client auditing and policy...
Unity Linux 20.1050a / 20.1060a / 20.1070a Security Update: glibc (UTSA-2025-177646)
The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-177646 advisory. Untrusted LDLIBRARYPATH environment variable vulnerability in the GNU C Library version 2.27 to 2.38 allows attacker controlled loading of dynamically shared library...
