High severity7.8NVD Advisory· Published Sep 22, 2023· Updated Jun 17, 2026

CVE-2023-34319

Description

The fix for XSA-423 added logic to Linux'es netback driver to deal with a frontend splitting a packet in a way such that not all of the headers would come in one piece. Unfortunately the logic introduced there didn't account for the extreme case of the entire packet being split into as many pieces as permitted by the protocol, yet still being smaller than the area that's specially dealt with to keep all (possible) headers together. Such an unusual packet would therefore trigger a buffer overrun in the driver.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

220

Linux/netback driverllm-create
osv-coords218 versions
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pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSS pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-LTSS pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP3-ESPOS pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP3-LTSS pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP4 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP5 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSS pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-LTSS pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP3-LTSS 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pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP3-LTSS pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Manager%20Server%204.2 pkg:rpm/suse/kgraft-patch-SLE12-SP5_Update_48&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP5
< 5.3.18-150300.59.133.1+ 217 more
- (no CPE)range: < 5.3.18-150300.59.133.1
- (no CPE)range: < 5.14.21-150500.55.28.1
- (no CPE)range: < 5.14.21-150400.24.88.1
- (no CPE)range: < 5.14.21-150500.55.28.1
- (no CPE)range: < 5.14.21-150400.14.66.1
- (no CPE)range: < 5.14.21-150500.33.17.1
- (no CPE)range: < 4.12.14-150100.197.154.1
- (no CPE)range: < 5.14.21-150500.55.28.1
- (no CPE)range: < 5.14.21-150400.24.88.1.150400.24.40.1
- (no CPE)range: < 5.14.21-150500.55.28.1.150500.6.11.2
- (no CPE)range: < 4.12.14-150100.197.154.1
- (no CPE)range: < 5.14.21-150500.55.28.1
- (no CPE)range: < 5.14.21-150400.24.88.1
- (no CPE)range: < 5.14.21-150500.55.28.1
- (no CPE)range: < 4.12.14-150100.197.154.1
- (no CPE)range: < 5.14.21-150500.55.28.1
- (no CPE)range: < 5.14.21-150400.24.88.1
- (no CPE)range: < 5.14.21-150500.55.28.1
- (no CPE)range: < 5.14.21-150400.24.88.1
- (no CPE)range: < 5.14.21-150500.55.28.1
- (no CPE)range: < 5.14.21-150400.15.53.1
- (no CPE)range: < 5.14.21-150500.13.18.1
- (no CPE)range: < 5.14.21-150400.15.53.1
- (no CPE)range: < 5.14.21-150500.13.18.1
- (no CPE)range: < 5.14.21-150400.14.66.1
- (no CPE)range: < 5.14.21-150500.33.17.1
- (no CPE)range: < 5.14.21-150400.24.88.1
- (no CPE)range: < 5.14.21-150500.55.28.1
- (no CPE)range: < 5.14.21-150400.15.53.1
- (no CPE)range: < 5.14.21-150500.13.18.1
- (no CPE)range: < 5.14.21-150400.14.66.1
- (no CPE)range: < 5.14.21-150500.33.17.1
- (no CPE)range: < 5.14.21-150400.24.88.1
- (no CPE)range: < 5.14.21-150500.55.28.1
- (no CPE)range: < 5.14.21-150400.15.53.1
- (no CPE)range: < 5.14.21-150500.13.18.1
- (no CPE)range: < 4.12.14-150100.197.154.1
- (no CPE)range: < 4.12.14-150100.197.154.1
- (no CPE)range: < 4.12.14-150100.197.154.1
- (no CPE)range: < 5.14.21-150500.55.28.1
- (no CPE)range: < 5.3.18-150300.59.133.1
- (no CPE)range: < 5.3.18-150300.59.133.1
- (no CPE)range: < 5.3.18-150300.59.133.1
- (no CPE)range: < 5.14.21-150400.24.88.1
- (no CPE)range: < 5.14.21-150500.55.28.1
- (no CPE)range: < 5.3.18-150300.59.133.1
- (no CPE)range: < 5.14.21-150400.14.66.1
- (no CPE)range: < 5.14.21-150500.33.17.1
- (no CPE)range: < 4.12.14-16.149.1
- (no CPE)range: < 4.12.14-16.149.1
- (no CPE)range: < 5.3.18-150300.59.133.1.150300.18.78.1
- (no CPE)range: < 5.3.18-150200.24.160.2.150200.9.79.2
- (no CPE)range: < 5.3.18-150300.59.133.1.150300.18.78.1
- (no CPE)range: < 5.3.18-150300.59.133.1.150300.18.78.1
- (no CPE)range: < 5.3.18-150300.59.133.1.150300.18.78.1
- (no CPE)range: < 5.3.18-150300.59.133.1.150300.18.78.1
- (no CPE)range: < 5.14.21-150400.24.88.1.150400.24.40.1
- (no CPE)range: < 5.14.21-150400.24.88.1.150400.24.40.1
- (no CPE)range: < 5.14.21-150500.55.28.1.150500.6.11.2
- (no CPE)range: < 5.14.21-150400.24.88.1.150400.24.40.1
- (no CPE)range: < 5.14.21-150500.55.28.1.150500.6.11.2
- (no CPE)range: < 5.3.18-150200.24.160.2.150200.9.79.2
- (no CPE)range: < 5.3.18-150300.59.133.1.150300.18.78.1
- (no CPE)range: < 5.3.18-150200.24.160.2.150200.9.79.2
- (no CPE)range: < 5.3.18-150300.59.133.1.150300.18.78.1
- (no CPE)range: < 5.3.18-150300.59.133.1.150300.18.78.1
- (no CPE)range: < 5.3.18-150300.59.133.1.150300.18.78.1
- (no CPE)range: < 5.3.18-150300.59.133.1
- (no CPE)range: < 4.12.14-122.176.1
- (no CPE)range: < 4.12.14-150100.197.154.1
- (no CPE)range: < 5.3.18-150200.24.160.2
- (no CPE)range: < 5.3.18-150300.59.133.1
- (no CPE)range: < 5.14.21-150400.24.88.1
- (no CPE)range: < 5.14.21-150500.55.28.1
- (no CPE)range: < 4.12.14-150100.197.154.1
- (no CPE)range: < 5.3.18-150200.24.160.2
- (no CPE)range: < 5.3.18-150300.59.133.1
- (no CPE)range: < 5.3.18-150300.59.133.1
- (no CPE)range: < 4.12.14-122.176.1
- (no CPE)range: < 4.12.14-150100.197.154.1
- (no CPE)range: < 5.3.18-150200.24.160.2
- (no CPE)range: < 5.3.18-150300.59.133.1
- (no CPE)range: < 5.14.21-150400.24.88.1
- (no CPE)range: < 5.14.21-150500.55.28.1
- (no CPE)range: < 5.3.18-150300.59.133.1
- (no CPE)range: < 5.3.18-150300.59.133.1
- (no CPE)range: < 5.14.21-150400.24.88.1
- (no CPE)range: < 5.14.21-150400.24.88.1
- (no CPE)range: < 5.14.21-150500.55.28.1
- (no CPE)range: < 5.14.21-150400.24.88.1
- (no CPE)range: < 5.14.21-150500.55.28.1
- (no CPE)range: < 5.14.21-150400.24.88.1
- (no CPE)range: < 5.14.21-150500.55.28.1
- (no CPE)range: < 4.12.14-122.176.1
- (no CPE)range: < 4.12.14-150100.197.154.1
- (no CPE)range: < 5.3.18-150200.24.160.2
- (no CPE)range: < 5.3.18-150300.59.133.1
- (no CPE)range: < 4.12.14-122.176.1
- (no CPE)range: < 4.12.14-150100.197.154.1
- (no CPE)range: < 5.3.18-150200.24.160.2
- (no CPE)range: < 5.3.18-150300.59.133.1
- (no CPE)range: < 4.12.14-122.176.1
- (no CPE)range: < 5.14.21-150400.24.88.1
- (no CPE)range: < 5.14.21-150500.55.28.1
- (no CPE)range: < 5.3.18-150300.59.133.1
- (no CPE)range: < 5.3.18-150300.59.133.1
- (no CPE)range: < 5.3.18-150300.59.133.1
- (no CPE)range: < 4.12.14-150100.197.154.1
- (no CPE)range: < 5.3.18-150200.24.160.3
- (no CPE)range: < 5.3.18-150300.59.133.1
- (no CPE)range: < 5.3.18-150300.59.133.1
- (no CPE)range: < 5.14.21-150400.24.88.1
- (no CPE)range: < 5.14.21-150500.55.28.1
- (no CPE)range: < 4.12.14-150100.197.154.1
- (no CPE)range: < 5.3.18-150200.24.160.3
- (no CPE)range: < 5.3.18-150300.59.133.1
- (no CPE)range: < 4.12.14-150100.197.154.1
- (no CPE)range: < 5.3.18-150200.24.160.3
- (no CPE)range: < 5.3.18-150300.59.133.1
- (no CPE)range: < 4.12.14-122.176.1
- (no CPE)range: < 1-150100.3.3.1
- (no CPE)range: < 1-150200.5.3.2
- (no CPE)range: < 1-150300.7.3.1
- (no CPE)range: < 1-150400.1.3.1
- (no CPE)range: < 1-150400.1.3.1
- (no CPE)range: < 1-150400.9.3.1
- (no CPE)range: < 1-150500.11.3.1
- (no CPE)range: < 1-150500.11.3.1
- (no CPE)range: < 1-150500.11.5.1
- (no CPE)range: < 5.3.18-150300.59.133.1
- (no CPE)range: < 4.12.14-150100.197.154.1
- (no CPE)range: < 5.3.18-150200.24.160.2
- (no CPE)range: < 5.3.18-150300.59.133.1
- (no CPE)range: < 5.3.18-150300.59.133.1
- (no CPE)range: < 5.14.21-150400.24.88.1
- (no CPE)range: < 5.14.21-150500.55.28.1
- (no CPE)range: < 4.12.14-150100.197.154.1
- (no CPE)range: < 5.3.18-150200.24.160.2
- (no CPE)range: < 5.3.18-150300.59.133.1
- (no CPE)range: < 4.12.14-150100.197.154.1
- (no CPE)range: < 5.3.18-150200.24.160.2
- (no CPE)range: < 5.3.18-150300.59.133.1
- (no CPE)range: < 4.12.14-122.176.1
- (no CPE)range: < 5.3.18-150300.59.133.1
- (no CPE)range: < 5.3.18-150200.24.160.2
- (no CPE)range: < 5.3.18-150300.59.133.1
- (no CPE)range: < 5.3.18-150300.59.133.1
- (no CPE)range: < 5.3.18-150200.24.160.2
- (no CPE)range: < 5.3.18-150300.59.133.1
- (no CPE)range: < 5.3.18-150200.24.160.2
- (no CPE)range: < 5.3.18-150300.59.133.1
- (no CPE)range: < 5.3.18-150300.59.133.1
- (no CPE)range: < 5.3.18-150300.59.133.1
- (no CPE)range: < 4.12.14-10.141.1
- (no CPE)range: < 5.14.21-150400.15.53.1
- (no CPE)range: < 5.14.21-150500.13.18.1
- (no CPE)range: < 5.3.18-150300.141.1
- (no CPE)range: < 5.3.18-150300.141.1
- (no CPE)range: < 5.14.21-150400.15.53.1
- (no CPE)range: < 5.14.21-150400.15.53.1
- (no CPE)range: < 5.14.21-150500.13.18.1
- (no CPE)range: < 4.12.14-10.141.1
- (no CPE)range: < 5.14.21-150400.15.53.1
- (no CPE)range: < 5.14.21-150500.13.18.1
- (no CPE)range: < 5.14.21-150400.14.66.1
- (no CPE)range: < 5.14.21-150500.33.17.1
- (no CPE)range: < 4.12.14-16.149.1
- (no CPE)range: < 4.12.14-16.149.1
- (no CPE)range: < 5.3.18-150300.59.133.1
- (no CPE)range: < 4.12.14-150100.197.154.1
- (no CPE)range: < 5.3.18-150200.24.160.1
- (no CPE)range: < 5.3.18-150300.59.133.1
- (no CPE)range: < 5.3.18-150300.59.133.1
- (no CPE)range: < 5.14.21-150400.24.88.1
- (no CPE)range: < 5.14.21-150500.55.28.1
- (no CPE)range: < 5.14.21-150400.24.88.1
- (no CPE)range: < 5.14.21-150500.55.28.1
- (no CPE)range: < 4.12.14-122.176.1
- (no CPE)range: < 4.12.14-150100.197.154.1
- (no CPE)range: < 5.3.18-150200.24.160.1
- (no CPE)range: < 5.3.18-150300.59.133.1
- (no CPE)range: < 4.12.14-122.176.1
- (no CPE)range: < 4.12.14-150100.197.154.1
- (no CPE)range: < 5.3.18-150200.24.160.1
- (no CPE)range: < 5.3.18-150300.59.133.1
- (no CPE)range: < 5.3.18-150300.59.133.1
- (no CPE)range: < 5.3.18-150300.59.133.1
- (no CPE)range: < 4.12.14-10.141.1
- (no CPE)range: < 5.14.21-150400.15.53.1
- (no CPE)range: < 5.14.21-150500.13.18.1
- (no CPE)range: < 5.14.21-150400.14.66.1
- (no CPE)range: < 5.14.21-150500.33.17.1
- (no CPE)range: < 4.12.14-16.149.1
- (no CPE)range: < 4.12.14-16.149.1
- (no CPE)range: < 5.3.18-150300.59.133.1
- (no CPE)range: < 4.12.14-150100.197.154.1
- (no CPE)range: < 5.3.18-150200.24.160.1
- (no CPE)range: < 5.3.18-150300.59.133.1
- (no CPE)range: < 5.3.18-150300.59.133.1
- (no CPE)range: < 5.14.21-150400.24.88.1
- (no CPE)range: < 5.14.21-150500.55.28.1
- (no CPE)range: < 4.12.14-122.176.1
- (no CPE)range: < 4.12.14-150100.197.154.1
- (no CPE)range: < 5.3.18-150200.24.160.1
- (no CPE)range: < 5.3.18-150300.59.133.1
- (no CPE)range: < 4.12.14-122.176.1
- (no CPE)range: < 4.12.14-150100.197.154.1
- (no CPE)range: < 5.3.18-150200.24.160.1
- (no CPE)range: < 5.3.18-150300.59.133.1
- (no CPE)range: < 4.12.14-10.141.1
- (no CPE)range: < 5.14.21-150400.15.53.1
- (no CPE)range: < 5.14.21-150500.13.18.1
- (no CPE)range: < 5.14.21-150400.24.88.1
- (no CPE)range: < 5.14.21-150500.55.28.1
- (no CPE)range: < 4.12.14-150100.197.154.1
- (no CPE)range: < 5.3.18-150300.59.133.1
- (no CPE)range: < 5.3.18-150300.59.133.1
- (no CPE)range: < 1-8.3.1
Linux/Kernelcpe-rescue
Range: consult Xen advisory XSA-432

Patches

Vulnerability mechanics

References

xenbits.xenproject.org/xsa/advisory-432.htmlnvdMitigationPatchVendor Advisory
packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.htmlnvdThird Party AdvisoryVDB Entry
lists.debian.org/debian-lts-announce/2024/01/msg00004.htmlnvdThird Party Advisory
security.netapp.com/advisory/ntap-20240202-0001/nvdThird Party Advisory
xenbits.xen.org/xsa/advisory-432.htmlnvd
lists.debian.org/debian-lts-announce/2023/10/msg00027.htmlnvd

News mentions

No linked articles in our index yet.

cvss	0.507
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000