Heap-based Buffer Overflow Affecting bpftool package, versions *
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Test your applications- Snyk ID SNYK-CENTOS7-BPFTOOL-7938433
- published 12 Sep 2024
- disclosed 11 Sep 2024
Introduced: 11 Sep 2024
CVE-2024-45030 Open this link in a new tabHow to fix?
There is no fixed version for Centos:7 bpftool.
NVD Description
Note: Versions mentioned in the description apply only to the upstream bpftool package and not the bpftool package as distributed by Centos.
See How to fix? for Centos:7 relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
igb: cope with large MAX_SKB_FRAGS
Sabrina reports that the igb driver does not cope well with large MAX_SKB_FRAG values: setting MAX_SKB_FRAG to 45 causes payload corruption on TX.
An easy reproducer is to run ssh to connect to the machine. With MAX_SKB_FRAGS=17 it works, with MAX_SKB_FRAGS=45 it fails. This has been reported originally in https://bugzilla.redhat.com/show_bug.cgi?id=2265320
The root cause of the issue is that the driver does not take into account properly the (possibly large) shared info size when selecting the ring layout, and will try to fit two packets inside the same 4K page even when the 1st fraglist will trump over the 2nd head.
Address the issue by checking if 2K buffers are insufficient.