UBUNTU-CVE-2026-20214

A vulnerability in the FSG file format parser of ClamAV could allow an unauthenticated, remote attacker to cause a DoS condition, or possibly other expanded impacts, resulting from memory corruption on an affected device. This vulnerability is due to improper boundary checks for content in FSG...

dnsmasq: RRSIG rdlen underflow leading to heap OOB read

A heap out-of-bounds read vulnerability was discovered in dnsmasq's DNSSEC validation. When processing RRSIG records, dnsmasq calculates the signature length by subtracting the fixed field size from the record's declared data length. A crafted RRSIG record with a data length smaller than the fixe...

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...

CVE-2026-6685

Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority following a notification that the vulnerability determination was made in error. After review, the CNA confirmed the erroneous finding. Thanks to David Brown for reaching out about this issue...

Security Bulletin: Vulnerabilities in xorg-x11-server library (CVE-2026-33999, CVE-2026-34001, CVE-2026-34003) affect Power HMC.

Summary The xorg-x11-server library is used by Power Hardware Management Console HMC. HMC has addressed the applicable CVEs. Vulnerability Details CVEID:CVE-2026-33999 DESCRIPTION: A flaw was found in the X.Org X server. This integer underflow vulnerability, specifically in the XKB compatibility...

CVE-2026-6685

This CVE ID has been rejected or withdrawn by its CVE Numbering Authority following a notification that the vulnerability determination was made in error. After review, the CNA confirmed the erroneous finding. Thanks to David Brown for reaching out about this issue...

EUVD-2026-40996

FatFs R0.16 and earlier exhibits a stale dirty-cache skip via unsigned-subtraction wrap in fread / fwrite fp-sect - sect cc during interleaved read/write on fragmented filesystems. This maps to CWE-191 Integer Underflow. Estimated CVSS v3.1 vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H 6.1...

CVE-2026-6685

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CVE-2026-6685

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CVE-2026-6685

CVE-2026-6685 refers to an Integer Underflow in FatFs during dirty-sector cache flush when handling fragmented volumes. Affected software is FatFs R0.16 and earlier; the issue arises from an unsigned-subtraction wrap in cache handling (fp->sect vs. sect) during interleaved read/write, which ca...

Glib: integer underflow in gio/gdbusintrospection.c via "g_dbus_node_info_new_for_xml"

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SUSE CVE-2026-53130

In the Linux kernel, the following vulnerability has been resolved: fs/omfs: reject ssysblocksize smaller than OMFSDIRSTART omfsfillsuper rejects oversized ssysblocksize values PAGESIZE, but it does not reject values smaller than OMFSDIRSTART 0x1b8 = 440. Later, omfsmakeempty uses sbi-ssysblocksi...

glib2 security update

2.56.1-9.0.5 - Fixes CVE-2025-14078 gvariant parser buffer underflow Orabug: 39418716 2.56.1-9.0.3 - Fixes CVE-2025-13601 gescapeuristring overflow Orabug: 38909821 2.56.1-9.0.1 - Fix overflow of GDBusConnection serial Orabug: 38666376...

FreeBSD : FreeBSD -- Jail reference count underflow (a65c31d1-74e0-11f1-958d-bc241121aa0a)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the a65c31d1-74e0-11f1-958d-bc241121aa0a advisory. When the JAILATDESC flag is specified, kernjailset and kernjailget released the reference to the caller...

PT-2026-54927

Name of the Vulnerable Software and Affected Versions FatFs versions R0.16 and earlier Description An integer underflow occurs during interleaved read and write operations on fragmented filesystems. This issue is caused by an unsigned-subtraction wrap in the f read and f write functions when...

[SECURITY] [DLA 4658-1] librabbitmq security update

------------------------------------------------------------------------- Debian LTS Advisory DLA-4658-1 [email protected] https://www.debian.org/lts/security/ Chris Lamb June 30, 2026 https://wiki.debian.org/LTS -...

SUSE-SU-2026:22459-1 Security update for pcr-oracle

This update for pcr-oracle fixes the following issues Update to 0.6.3: Security issue: - integer underflow vulnerability in parsesbatlevelsection bsc1265042. Non security issue: - Lockout Authorization error for libvirt-emulated TPM bsc1265871. Changes for pcr-oracle: + Relax TPM self-test...

EUVD-2025-31199

Open Babel has out-of-bounds write overlapping memcpy in zipstream basicunzipstreambuf::underflow...

GHSA-8J3X-M868-CPW8 Open Babel has out-of-bounds write (overlapping memcpy) in zipstream basic_unzip_streambuf::underflow

Summary A memory-safety vulnerability in Open Babel's bundled zipstream decompression code caused an out-of-bounds write via overlapping memcpy when reading a crafted gzip-compressed chemistry file. Details The flaw was in basicunzipstreambuf::underflow. The decompression buffer refill path invok...

CVE-2026-58016 Glib: integer underflow in gio/gdbusintrospection.c via "g_dbus_node_info_new_for_xml"

A flaw was found in GLib. A state confusion issue exists in gdbusnodeinfonewforxml in the gio/gdbusintrospection.c file when processing malformed D-Bus introspection XML, specifically with a node element nested within other elements like method, signal, property or arg. This issue can cause an...