xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: stack buffer overflow in XKB SetMap request via mapWidths indexing

A stack-based buffer overflow flaw was found in the X.Org X server and Xwayland. XkbSetMapChecks declares a fixed-size stack buffer mapWidths256 indexed by key type index. The helper function CheckKeyTypes writes to this buffer at a client-controlled offset, allowing a stack buffer overflow. This...

libxml2: Stack Buffer Overflow in xmllint Interactive Shell Command Handling

A flaw was found in the interactive shell of the xmllint command-line tool, used for parsing XML files. When a user inputs an overly long command, the program does not check the input size properly, which can cause it to crash. This issue might allow attackers to run harmful code in rare...

libtasn1: libtasn1: Denial of Service via stack-based buffer overflow in asn1_expend_octet_string

A flaw was found in libtasn1. A remote attacker could exploit a stack-based buffer overflow vulnerability in the asn1expendoctetstring function. This occurs due to a failure in validating the size of input data. Successful exploitation can lead to a Denial of Service DoS condition, making the...

Low: Red Hat Security Advisory: libtasn1 security update

An update for libtasn1 is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Low. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CV...

xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: stack buffer overflow in XKB key types due to unchecked shift levels

A stack-based buffer overflow flaw was found in the X.Org X server and Xwayland. The X server has multiple stack buffers sized XkbMaxShiftLevel XkbNumKbdGroups but CheckKeyTypes does not verify or clamp non-canonical key types to XkbMaxShiftLevel. A client can change key types to excessive shift...

xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: stack buffer overflow in XKB SetMap request via mapWidths indexing

A stack-based buffer overflow flaw was found in the X.Org X server and Xwayland. XkbSetMapChecks declares a fixed-size stack buffer mapWidths256 indexed by key type index. The helper function CheckKeyTypes writes to this buffer at a client-controlled offset, allowing a stack buffer overflow. This...

xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: stack buffer overflow in XKB key types due to unchecked shift levels

A stack-based buffer overflow flaw was found in the X.Org X server and Xwayland. The X server has multiple stack buffers sized XkbMaxShiftLevel XkbNumKbdGroups but CheckKeyTypes does not verify or clamp non-canonical key types to XkbMaxShiftLevel. A client can change key types to excessive shift...

xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: stack buffer overflow in XKB SetMap request via mapWidths indexing

A stack-based buffer overflow flaw was found in the X.Org X server and Xwayland. XkbSetMapChecks declares a fixed-size stack buffer mapWidths256 indexed by key type index. The helper function CheckKeyTypes writes to this buffer at a client-controlled offset, allowing a stack buffer overflow. This...

Amazon Linux 2 : tigervnc, --advisory ALAS2-2026-3792 (ALAS-2026-3792)

The version of tigervnc installed on the remote host is prior to 1.8.0-24. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2026-3792 advisory. A stack-based buffer overflow flaw was found in the X.Org X server and Xwayland. XkbSetMapChecks declares a fixed-size stack buff...

ALSA-2026:36728 Low: libtasn1 security update

A library that provides Abstract Syntax Notation One ASN.1, as specified by the X.680 ITU-T recommendation parsing and structures management, and Distinguished Encoding Rules DER, as per X.690 encoding and decoding functions. Security Fixes: libtasn1: libtasn1: Denial of Service via stack-based...

Stack-based Buffer Overflow

Overview Affected versions of this package are vulnerable to Stack-based Buffer Overflow in the opensslverifycallback process during a DTLS handshake. An attacker can cause a process crash and disrupt service availability by sending a certificate with an oversized Subject Distinguished Name that...

Low: libtasn1 security update

A library that provides Abstract Syntax Notation One ASN.1, as specified by the X.680 ITU-T recommendation parsing and structures management, and Distinguished Encoding Rules DER, as per X.690 encoding and decoding functions. Security Fixes: libtasn1: libtasn1: Denial of Service via stack-based...

gstreamer1 -- multiple vulnerabilities

The GStreamer project reports: Multiple security issues were identified and fixed in the GStreamer framework. GStreamer-SA-2026-0044: Out-of-bounds read in RTP CELT audio depayloader GStreamer-SA-2026-0049: Heap buffer overflow in MPEG-4 Video parser GStreamer-SA-2026-0050: Heap buffer overflow i...

RHEL 9 : xorg-x11-server-Xwayland (RHSA-2026:36632)

The remote Redhat Enterprise Linux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2026:36632 advisory. Xwayland is an X server for running X clients under Wayland. Security Fixes: xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server:...

ratex-parser has unbounded parser recursion that leads to stack overflow (process abort)

Summary RaTeX’s recursive-descent parser recurses one or more native stack frame per nesting level at , \left, \sqrt, ^, etc, with no maximum depth limit. A short, 10 KB input of nested groups overflows the 8 MB main-thread stack and aborts the process. With panic = "abort" Cargo.toml:48, and...

GHSA-4W5H-HX6R-28Q7 ratex-parser has unbounded parser recursion that leads to stack overflow (process abort)

Summary RaTeX’s recursive-descent parser recurses one or more native stack frame per nesting level at , \left, \sqrt, ^, etc, with no maximum depth limit. A short, 10 KB input of nested groups overflows the 8 MB main-thread stack and aborts the process. With panic = "abort" Cargo.toml:48, and...

OPENSUSE-SU-2026:21251-1 Security update for alloy

This update for alloy fixes the following issues: Update to version 1.17.0. Security issues fixed: - CVE-2026-25680: golang.org/x/net/html: parsing arbitrary HTML can consume excessive CPU time, possibly leading to denial of service bsc1267185. - CVE-2026-25681: golang.org/x/net/html: parsing...

SUSE-SU-2026:22575-1 Security update for alloy

This update for alloy fixes the following issues: Update to version 1.17.0. Security issues fixed: - CVE-2026-25680: golang.org/x/net/html: parsing arbitrary HTML can consume excessive CPU time, possibly leading to denial of service bsc1267185. - CVE-2026-25681: golang.org/x/net/html: parsing...

PYSEC-2026-1609 MaterialX Stack Overflow via Lack of MTLX XML Parsing Recursion Limit

Summary When parsing an MTLX file with multiple nested nodegraph implementations, the MaterialX XML parsing logic can potentially crash due to stack exhaustion. Details By specification, multiple kinds of elements in MTLX support nesting other elements, such as in the case of nodegraph elements...

PYSEC-2026-1559 LlamaIndex vulnerable to DoS attack through uncontrolled recursive JSON parsing

The JSONReader in run-llama/llamaindex versions 0.12.28 is vulnerable to a stack overflow due to uncontrolled recursive JSON parsing. This vulnerability allows attackers to trigger a Denial of Service DoS by submitting deeply nested JSON structures, leading to a RecursionError and crashing...