RHSA-2026:42952 Red Hat Security Advisory: glibc security update

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RHSA-2026:42694 Red Hat Security Advisory: glibc security update

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glibc security update

An update is available for glibc. This update affects Rocky Linux 10. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The glibc packages provide the standard C libraries libc, POSIX thread librari...

Moderate: Red Hat Security Advisory: glibc security update

An update for glibc is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the...

glibc: glibc: Out-of-bounds write via TSIG record processing

A flaw was found in glibc, the GNU C Library. Specifically, deprecated functions responsible for printing TSIG Transaction Signature records fail to properly manage memory buffers. This oversight can lead to an out-of-bounds write when processing specially crafted TSIG records. An attacker could...

AlmaLinux 10 : glibc (ALSA-2026:42694)

The remote AlmaLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:42694 advisory. glibc: glibc: Information disclosure or denial of service via ungetwc function with specific wide character encodings CVE-2026-5928 glibc: glibc:...

glibc: glibc: Application crash or uninitialized memory read via crafted DNS response

A flaw was found in glibc GNU C Library. The deprecated functions nsprintrrf, nsprintrr, and fpnquery do not properly validate the length of RDATA Resource Record Data in a DNS Domain Name System response when processing specific record types like LOC, CERT, TKEY, or TSIG. A remote attacker could...

glibc: glibc: Out-of-bounds write via TSIG record processing

A flaw was found in glibc, the GNU C Library. Specifically, deprecated functions responsible for printing TSIG Transaction Signature records fail to properly manage memory buffers. This oversight can lead to an out-of-bounds write when processing specially crafted TSIG records. An attacker could...

glibc: glibc: Out-of-bounds write via TSIG record processing

A flaw was found in glibc, the GNU C Library. Specifically, deprecated functions responsible for printing TSIG Transaction Signature records fail to properly manage memory buffers. This oversight can lead to an out-of-bounds write when processing specially crafted TSIG records. An attacker could...

Moderate: Red Hat Security Advisory: glibc security update

An update for glibc is now available for Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the...

EulerOS Virtualization 2.10.1 : glibc (EulerOS-SA-2026-2819)

According to the versions of the glibc packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : Calling the ungetwc function on a FILE stream with wide characters encoded in a character set that has overlaps between its single...

ALSA-2026:42733 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:...

EulerOS Virtualization 2.12.1 (EulerOS-SA-2026-2726)

According to the versions of the packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : Calling the ungetwc function on a FILE stream with wide characters encoded in a character set that has overlaps between its single byte an...

EulerOS Virtualization 2.10.0 : glibc (EulerOS-SA-2026-2850)

According to the versions of the glibc packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : Calling the ungetwc function on a FILE stream with wide characters encoded in a character set that has overlaps between its single...

Oracle Linux 10 : glibc (ELSA-2026-18139)

The remote Oracle Linux 10 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2026-18139 advisory. - CVE-2026-5450: Fix buffer overflow in scanf RHEL-172694 - CVE-2026-4046: Fix assertion failure in IBM1390 and IBM1399 iconv modules RHEL-162885 Tenable has...

SUSE SLED15: glibc / glibc-32bit / glibc-devel / glibc-devel-32bit / etc (SUSE-SU-2026:3030-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:3030-1 advisory. This update for glibc fixes the following issues - CVE-2026-5435: unchecked buffer writing in TSIG handling ca...

MiracleLinux 9 : glibc-2.34-270.el9_8 (AXSA:2026-1259:07)

The remote MiracleLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2026-1259:07 advisory. glibc: glibc: Incorrect DNS response parsing via crafted DNS server response CVE-2026-4437 glibc: glibc: Invalid DNS hostname returned via...

CVE-2026-55213 h2o: musl libc stack overflow (QPACK)

h2o is an HTTP server with support for HTTP/1.x, HTTP/2 and HTTP/3. Prior to commit edd7a120bfc4af11ac0cbebce2a43cc1f93f9af1, when h2o processes a QPACK instruction sent from the peer over HTTP/3, lib/http3/qpack.c might allocate an on-stack buffer as large as approximately 800 KB by calling...

glibc: glibc: Heap Buffer Overflow in `scanf` with `%mc` format specifier and large width

A flaw was found in glibc GNU C Library. This vulnerability occurs when an application uses the scanf family of functions with a %mc format specifier, which is used for dynamically allocating memory for character input, and provides an explicit width greater than 1024. This specific combination c...

Moderate: Red Hat Security Advisory: compat-glibc security update

An update for compat-glibc is now available for Red Hat Enterprise Linux 7 Extended Lifecycle Support. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is availabl...