Upstream information

CVE-2026-15813 at MITRE

Description

A vulnerability was found in the network packet de-fragmentation engine of kronosnet (Version affected <= 1.34). The internal reassembly code does not properly validate sequence numbers of incoming payload fragments. An attacker can exploit this lack of verification by transmitting malformed packets with corrupted sequence parameters. Under specific conditions, this forces the packet processing layer to parse data outside the designated bounds of the internal memory structures, causing an out-of-bounds memory access or heap corruption. This behavior can result in sudden application crashes or system instability.

SUSE information

Overall state of this security issue: Pending

This issue is currently rated as having moderate severity.

CVSS v3 Scores
CVSS detail CNA (Red Hat) SUSE
Base Score 6.5 6.5
Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
Attack Vector Network Network
Attack Complexity High High
Privileges Required None None
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact None None
Integrity Impact Low Low
Availability Impact High High
CVSSv3 Version 3.1 3.1
SUSE Bugzilla entry: 1271925 [IN_PROGRESS]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
Image SLES-SAP-Azure
Image SLES-SAP-Azure-3P
Image SLES-SAP-BYOS-Azure
Image SLES-SAP-BYOS-EC2
Image SLES-SAP-BYOS-GCE
Image SLES-SAP-EC2
Image SLES-SAP-GCE
Image SLES-SAP-GCE-3P
  • libknet1 >= 1.30-160000.4.1
  • libknet1-crypto-nss-plugin >= 1.30-160000.4.1
SUSE Linux Enterprise High Availability Extension 16.0
  • libknet-devel >= 1.30-160000.4.1
  • libknet1 >= 1.30-160000.4.1
  • libknet1-compress-bzip2-plugin >= 1.30-160000.4.1
  • libknet1-compress-lz4-plugin >= 1.30-160000.4.1
  • libknet1-compress-lzma-plugin >= 1.30-160000.4.1
  • libknet1-compress-lzo2-plugin >= 1.30-160000.4.1
  • libknet1-compress-plugins-all >= 1.30-160000.4.1
  • libknet1-compress-zlib-plugin >= 1.30-160000.4.1
  • libknet1-compress-zstd-plugin >= 1.30-160000.4.1
  • libknet1-crypto-nss-plugin >= 1.30-160000.4.1
  • libknet1-crypto-openssl-plugin >= 1.30-160000.4.1
  • libknet1-crypto-plugins-all >= 1.30-160000.4.1
  • libknet1-plugins-all >= 1.30-160000.4.1
  • libnozzle-devel >= 1.30-160000.4.1
  • libnozzle1 >= 1.30-160000.4.1
 Patchnames:
SUSE-SLES-HA-16.0-1682 (ppc64le,s390x,x86_64)
SUSE Linux Enterprise Server for SAP applications 16.0
  • libknet-devel >= 1.30-160000.4.1
  • libknet1 >= 1.30-160000.4.1
  • libknet1-compress-bzip2-plugin >= 1.30-160000.4.1
  • libknet1-compress-lz4-plugin >= 1.30-160000.4.1
  • libknet1-compress-lzma-plugin >= 1.30-160000.4.1
  • libknet1-compress-lzo2-plugin >= 1.30-160000.4.1
  • libknet1-compress-plugins-all >= 1.30-160000.4.1
  • libknet1-compress-zlib-plugin >= 1.30-160000.4.1
  • libknet1-compress-zstd-plugin >= 1.30-160000.4.1
  • libknet1-crypto-nss-plugin >= 1.30-160000.4.1
  • libknet1-crypto-openssl-plugin >= 1.30-160000.4.1
  • libknet1-crypto-plugins-all >= 1.30-160000.4.1
  • libknet1-plugins-all >= 1.30-160000.4.1
  • libnozzle-devel >= 1.30-160000.4.1
  • libnozzle1 >= 1.30-160000.4.1
 Patchnames:
SUSE-SLES-16.0-1682 (ppc64le,x86_64)
SUSE Linux Enterprise Server for SAP applications 16.1
  • libknet-devel >= 1.33-160100.2.1
  • libknet1 >= 1.33-160100.2.1
  • libknet1-compress-bzip2-plugin >= 1.33-160100.2.1
  • libknet1-compress-lz4-plugin >= 1.33-160100.2.1
  • libknet1-compress-lzma-plugin >= 1.33-160100.2.1
  • libknet1-compress-lzo2-plugin >= 1.33-160100.2.1
  • libknet1-compress-plugins-all >= 1.33-160100.2.1
  • libknet1-compress-zlib-plugin >= 1.33-160100.2.1
  • libknet1-compress-zstd-plugin >= 1.33-160100.2.1
  • libknet1-crypto-nss-plugin >= 1.33-160100.2.1
  • libknet1-crypto-openssl-plugin >= 1.33-160100.2.1
  • libknet1-crypto-plugins-all >= 1.33-160100.2.1
  • libknet1-plugins-all >= 1.33-160100.2.1
  • libnozzle-devel >= 1.33-160100.2.1
  • libnozzle1 >= 1.33-160100.2.1
 Patchnames:
SUSE Linux Enterprise Server for SAP applications 16.1 GA libknet-devel-1.33-160100.2.1 (aarch64,ppc64le,s390x,x86_64)
SUSE Package Hub 15 SP7
  • libknet-devel >= 1.33-bp157.2.3.1
  • libknet1 >= 1.33-bp157.2.3.1
  • libknet1-compress-bzip2-plugin >= 1.33-bp157.2.3.1
  • libknet1-compress-lz4-plugin >= 1.33-bp157.2.3.1
  • libknet1-compress-lzma-plugin >= 1.33-bp157.2.3.1
  • libknet1-compress-lzo2-plugin >= 1.33-bp157.2.3.1
  • libknet1-compress-plugins-all >= 1.33-bp157.2.3.1
  • libknet1-compress-zlib-plugin >= 1.33-bp157.2.3.1
  • libknet1-compress-zstd-plugin >= 1.33-bp157.2.3.1
  • libknet1-crypto-nss-plugin >= 1.33-bp157.2.3.1
  • libknet1-crypto-openssl-plugin >= 1.33-bp157.2.3.1
  • libknet1-crypto-plugins-all >= 1.33-bp157.2.3.1
  • libknet1-plugins-all >= 1.33-bp157.2.3.1
  • libnozzle-devel >= 1.33-bp157.2.3.1
  • libnozzle1 >= 1.33-bp157.2.3.1
 Patchnames:
openSUSE-2026-268 (aarch64,i586,ppc64le,s390x,x86_64)
openSUSE Leap 16.0
  • libknet-devel >= 1.30-160000.4.1
  • libknet1 >= 1.30-160000.4.1
  • libknet1-compress-bzip2-plugin >= 1.30-160000.4.1
  • libknet1-compress-lz4-plugin >= 1.30-160000.4.1
  • libknet1-compress-lzma-plugin >= 1.30-160000.4.1
  • libknet1-compress-lzo2-plugin >= 1.30-160000.4.1
  • libknet1-compress-plugins-all >= 1.30-160000.4.1
  • libknet1-compress-zlib-plugin >= 1.30-160000.4.1
  • libknet1-compress-zstd-plugin >= 1.30-160000.4.1
  • libknet1-crypto-nss-plugin >= 1.30-160000.4.1
  • libknet1-crypto-openssl-plugin >= 1.30-160000.4.1
  • libknet1-crypto-plugins-all >= 1.30-160000.4.1
  • libknet1-plugins-all >= 1.30-160000.4.1
  • libnozzle-devel >= 1.30-160000.4.1
  • libnozzle1 >= 1.30-160000.4.1
 Patchnames:
openSUSE-Leap-16.0-1682
openSUSE Tumbleweed
  • libknet-devel >= 1.33-2.1
  • libknet1 >= 1.33-2.1
  • libknet1-compress-bzip2-plugin >= 1.33-2.1
  • libknet1-compress-lz4-plugin >= 1.33-2.1
  • libknet1-compress-lzma-plugin >= 1.33-2.1
  • libknet1-compress-lzo2-plugin >= 1.33-2.1
  • libknet1-compress-plugins-all >= 1.33-2.1
  • libknet1-compress-zlib-plugin >= 1.33-2.1
  • libknet1-compress-zstd-plugin >= 1.33-2.1
  • libknet1-crypto-nss-plugin >= 1.33-2.1
  • libknet1-crypto-openssl-plugin >= 1.33-2.1
  • libknet1-crypto-plugins-all >= 1.33-2.1
  • libknet1-plugins-all >= 1.33-2.1
  • libnozzle-devel >= 1.33-2.1
  • libnozzle1 >= 1.33-2.1
 Patchnames:
openSUSE-Tumbleweed-2026-11364

First public cloud image revisions this CVE is fixed in:

Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.

Product(s) Source package State
Products under general support and receiving all security fixes.
SUSE Linux Enterprise High Availability Extension 16.0 kronosnet Released
SUSE Linux Enterprise High Availability Extension 16.1 kronosnet Released
SUSE Linux Enterprise High Availability Extension 16.2 kronosnet Affected
SUSE Linux Enterprise Server for SAP applications 16.0 kronosnet Released
SUSE Linux Enterprise Server for SAP applications 16.1 kronosnet Released
SUSE Linux Enterprise Server for SAP applications 16.2 kronosnet Affected
SUSE Package Hub 15 SP7 kronosnet Released
openSUSE Leap 16.0 kronosnet Affected
openSUSE Leap 16.1 kronosnet Released

SUSE Timeline for this CVE

CVE page created: Tue Jul 21 11:27:51 2026
CVE page last modified: Wed Oct 14 17:37:41 2026