Moderate: glibc security update

The glibc packages provide the standard C libraries libc, POSIX thread libraries libpthread, standard math libraries libm, and the name service cache daemon nscd used by multiple programs on the system. Without these libraries, the Linux system cannot function correctly. Security Fixes: glibc:...

CVE-2026-47703

AdGuard Home is a network-wide software for blocking ads and tracking. Prior to 0.107.75, AdGuard Home's client-triggered DoQ forwarding path to a udp:// upstream reduced backend UDP DNS state by producing dnsid=0 or txid=0 and exposed a quoted-port ICMP source-port oracle, weakening DNS response...

AZL-92198 CVE-2026-14461 affecting package mtr for versions less than 0.95-4

mtr is vulnerable to Out-of-bound read vulnerability in ipinfolookup function. An attacker who can influence the TXT response used for AS lookups can trigger this bug by returning a DNS response that is larger than 512 bytes and uses a crafted compression pointer in the answer NAME...

CVE-2026-14461

The CVE-2026-14461 entry affects mtr up to version 0.96, where ipinfo_lookup() performs DNS AS lookups and can be triggered by a TXT response larger than 512 bytes with a crafted compression pointer, causing an out-of-bounds read. The function uses the response length as the end-of-message bounda...

netty-resolver-dns: Netty: Information disclosure and data manipulation due to improper CNAME record validation

A flaw was found in Netty's DnsResolveContext. This vulnerability allows a remote attacker to achieve information disclosure or data manipulation by crafting malicious DNS responses. The flaw occurs because the DnsResolveContext fails to validate the origin bailiwick of CNAME records in DNS...

OESA-2026-2592 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...

RockyLinux 10 : glibc (RLSA-2026:19061)

The remote RockyLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:19061 advisory. glibc: glibc: Incorrect DNS response parsing via crafted DNS server response CVE-2026-4437 glibc: glibc: Invalid DNS hostname returned via gethostbyadd...

glibc: glibc: Incorrect DNS response parsing via crafted DNS server response

A flaw was found in glibc the GNU C Library. When an application uses the gethostbyaddr or gethostbyaddrr functions with a nsswitch.conf configuration that specifies glibc's DNS backend, a remote attacker can send a specially crafted DNS Domain Name System response. This crafted response can caus...

www/nginx -- Remote Code Execution/DoS

nginx development team reports: When using the "proxysetbody" directive, an attacker might inject data in the proxied request to an HTTP/2 backend A heap memory buffer overflow might occur in a worker process while handling a specially crafted request by ngxhttprewritemodule, potentially resultin...

CVE-2026-5172

A heap out-of-bounds read vulnerability was discovered in dnsmasq's DNS response processing. The extractaddresses function trusts the declared record data length rdlen without verifying that a subsequent call to extractname stays within the record boundary. A crafted DNS response with a mismatche...

ALPINE-CVE-2026-5172

A buffer overflow in dnsmasq’s extractaddresses function allows an attacker to trigger a heap out-of-bounds read and crash by exploiting a malformed DNS response, enabling extractname to advance the pointer past the record’s end...

AZL-86766 CVE-2026-5172 affecting package dnsmasq for versions less than 2.92-1

A buffer overflow in dnsmasq’s extractaddresses function allows an attacker to trigger a heap out-of-bounds read and crash by exploiting a malformed DNS response, enabling extractname to advance the pointer past the record’s end...

CVE-2026-5172

A buffer overflow in dnsmasq’s extractaddresses function allows an attacker to trigger a heap out-of-bounds read and crash by exploiting a malformed DNS response, enabling extractname to advance the pointer past the record’s end...

CLSA-2026-1777946242 php: Fix of 13 CVEs

CVE-2018-14883: fix int overflow leading to heap overflow in exifthumbnailextract - CVE-2019-6977: fix imagecolormatch out-of-bounds write on heap in GD - CVE-2019-9022: fix memcpy with negative length via crafted DNS response - CVE-2019-9640: fix invalid read in exifprocessSOFn - CVE-2019-11042:...

CVE-2026-6238

The deprecated functions nsprintrrf, nsprintrr and fpnquery in the GNU C Library version 2.0.1 to version 2.43 fail to validate the RDATA content against the RDATA length in a DNS response when processing A6, CERT, LOC, TKEY or TSIG records, which may allow an attacker to craft a DNS response,...

CVE-2026-6238

GLIBC: The deprecated debugging functions ns_printrrf, ns_printrr and fp_nquery in GNU C Library (glibc) 2.2 and newer fail to validate RDATA against its length for DNS LOC, CERT, TKEY or TSIG records. This may let an attacker craft a DNS response that crashes a target application or reads uninit...

GNU C Library 安全漏洞

The GNU C Library is an open-source, free C-language compiler program published by the GNU community under the LGPL license. Versions of the GNU C Library 2.2 and later contain security vulnerabilities. These vulnerabilities arise when functions such as nsprintrrf, nsprintrr, and fpnquery handle...

SUSE SLED15 / SLES15 / openSUSE 15 Security Update : glibc (SUSE-SU-2026:1369-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:1369-1 advisory. - CVE-2026-4437: incorrect DNS response parsing via crafted DNS server response bsc1260078. -...

SUSE-SU-2026:1369-1 Security update for glibc

This update for glibc fixes the following issues: - CVE-2026-4437: incorrect DNS response parsing via crafted DNS server response bsc1260078. - CVE-2026-4438: invalid DNS hostname returned via gethostbyaddr functions bsc1260082...

OESA-2026-1804 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...