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.
References
| Link | Resource |
|---|---|
| http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html | Third Party Advisory VDB Entry |
| https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html | Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20240202-0001/ | Third Party Advisory |
| https://xenbits.xenproject.org/xsa/advisory-432.html | Mitigation Patch Vendor Advisory |
| http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html | Third Party Advisory VDB Entry |
| https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html | Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20240202-0001/ | Third Party Advisory |
| https://xenbits.xenproject.org/xsa/advisory-432.html | Mitigation Patch Vendor Advisory |
Configurations
Configuration 1 (hide)
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Configuration 2 (hide)
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Configuration 3 (hide)
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History
13 Feb 2025, 17:16
| Type | Values Removed | Values Added |
|---|---|---|
| Summary | (en) 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. |
21 Nov 2024, 08:07
| Type | Values Removed | Values Added |
|---|---|---|
| References | () http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html - Third Party Advisory, VDB Entry | |
| References | () https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html - Third Party Advisory | |
| References | () https://security.netapp.com/advisory/ntap-20240202-0001/ - Third Party Advisory | |
| References | () https://xenbits.xenproject.org/xsa/advisory-432.html - Mitigation, Patch, Vendor Advisory |
26 Jun 2024, 15:54
| Type | Values Removed | Values Added |
|---|---|---|
| References | () http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html - Third Party Advisory, VDB Entry | |
| References | () https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html - Third Party Advisory | |
| References | () https://security.netapp.com/advisory/ntap-20240202-0001/ - Third Party Advisory | |
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| First Time |
Linux linux Kernel
Linux |
02 Feb 2024, 14:15
| Type | Values Removed | Values Added |
|---|---|---|
| References |
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11 Jan 2024, 19:15
| Type | Values Removed | Values Added |
|---|---|---|
| References |
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29 Nov 2023, 15:15
| Type | Values Removed | Values Added |
|---|---|---|
| References |
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Information
Published : 2023-09-22 14:15
Updated : 2025-02-13 17:16
NVD link : CVE-2023-34319
Mitre link : CVE-2023-34319
CVE.ORG link : CVE-2023-34319
JSON object : View
Products Affected
debian
- debian_linux
xen
- xen
linux
- linux_kernel
CWE
CWE-787
Out-of-bounds Write