CVE-2026-52964

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Bound MIDI 2.0 endpoint descriptor scans The USB MIDI 2.0 endpoint parser has the same descriptor walking pattern as the legacy MIDI parser. It validates bLength against bNumGrpTrmBlock before reading...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: can: ucan: Fix infinite loop caused by zero-length messages. If a faulty ucan device receives a message where the message length field is set to 0, the driver will enter an infinite loop in ucanreadbulkcallback, causing the syste...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: kvaserusb: leaf: Fix potential infinite loop in command parsers The functions kvaserusbleafwaitcmd and kvaserusbleafreadbulkcallback contain logic for handling zero-length commands. These commands are used to align data with the...

CURL-CVE-2026-11352 QUIC zero-length UDP datagrams busy-loop

An issue in curl’s QUIC UDP receive function allows a malicious HTTP/3 server to trigger a remote denial of service against a curl or libcurl client. Because the helper function discards zero-length UDP datagrams before counting them toward the per-call packet budget, a connected QUIC peer can...

QUIC zero-length UDP datagrams busy-loop

An issue in curl’s QUIC UDP receive function allows a malicious HTTP/3 server to trigger a remote denial of service against a curl or libcurl client. Because the helper function discards zero-length UDP datagrams before counting them toward the per-call packet budget, a connected QUIC peer can...

PT-2026-51923

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the ntfs3 file system where a zero value for len can lead to the use of an uninitialized lcn variable. This occurs because when run lookup entry fails and returns fals...

Security update for libarchive

This update for libarchive fixes the following issues CVE-2025-60753: bsdtar hangs and OOMs with zero-length pattern matches bsc1253088. CVE-2026-4111: logical deadlock the RAR5 filter subsystem and the half-window output limiter leads to infinite loop and DoS bsc1259635. CVE-2026-4424: informati...

Security update for libarchive

This update for libarchive fixes the following issues CVE-2025-60753: bsdtar hangs and OOMs with zero-length pattern matches bsc1253088. CVE-2026-4111: logical deadlock the RAR5 filter subsystem and the half-window output limiter leads to infinite loop and DoS bsc1259635. CVE-2026-4424: informati...

kernel: netfilter: nf_conntrack_h323: check for zero length in DecodeQ931()

A flaw was found in the Linux kernel's netfilter subsystem, specifically within the nfconntrackh323 module. This vulnerability occurs in the DecodeQ931 function when processing a zero-length value from a packet. An integer underflow during a length calculation results in a large, incorrect value...

SUSE-SU-2026:22241-1 Security update for libarchive

This update for libarchive fixes the following issues - CVE-2025-60753: bsdtar hangs and OOMs with zero-length pattern matches bsc1253088. - CVE-2026-4111: logical deadlock the RAR5 filter subsystem and the half-window output limiter leads to infinite loop and DoS bsc1259635. - CVE-2026-4424:...

EUVD-2026-37521

sppppapinput in sys/net/ifspppsubr.c in OpenBSD before 076e2b1 allows authentication bypass via certain zero values for lengths...

CVE-2026-55706

sppppapinput in sys/net/ifspppsubr.c in OpenBSD before 076e2b1 allows authentication bypass via certain zero values for lengths...

kernel: netfilter: nf_conntrack_h323: check for zero length in DecodeQ931()

A flaw was found in the Linux kernel's netfilter subsystem, specifically within the nfconntrackh323 module. This vulnerability occurs in the DecodeQ931 function when processing a zero-length value from a packet. An integer underflow during a length calculation results in a large, incorrect value...

kernel: netfilter: nf_conntrack_h323: check for zero length in DecodeQ931()

A flaw was found in the Linux kernel's netfilter subsystem, specifically within the nfconntrackh323 module. This vulnerability occurs in the DecodeQ931 function when processing a zero-length value from a packet. An integer underflow during a length calculation results in a large, incorrect value...

CVE-2026-55706

CVE-2026-55706 affects the OpenBSD kernel component sppp_pap_input in sys/net/if_spppsubr.c, where authentication can be bypassed if certain lengths are zero. Affected versions are OpenBSD before the commit 076e2b1. The root cause is input length values being set to zero, enabling bypass of authe...

CVE-2026-55706

sppppapinput in sys/net/ifspppsubr.c in OpenBSD before 076e2b1 allows authentication bypass via certain zero values for lengths...

CVE-2026-55706

sppppapinput in sys/net/ifspppsubr.c in OpenBSD before 076e2b1 allows authentication bypass via certain zero values for lengths...

gnutls: GnuTLS: Denial of Service via DTLS zero-length fragment

A flaw in GnuTLS DTLS handshake parsing allows malformed fragments with zero length and non-zero offset, leading to an integer underflow during reassembly and resulting in an out-of-bounds read. This issue is remotely exploitable and may cause information disclosure or denial of service...

PT-2026-50221

Name of the Vulnerable Software and Affected Versions OpenBSD versions prior to 7.6 Description An authentication bypass exists in the sppp pap input function within sys/net/if spppsubr.c. The issue occurs when a PAP Auth-Request is sent with name len and passwd len set to zero. Because the syste...

kernel: netfilter: nf_conntrack_h323: check for zero length in DecodeQ931()

A flaw was found in the Linux kernel's netfilter subsystem, specifically within the nfconntrackh323 module. This vulnerability occurs in the DecodeQ931 function when processing a zero-length value from a packet. An integer underflow during a length calculation results in a large, incorrect value...