CVE-2019-19076 — A memory leak in the nfp_abm_u32_knode_replace() function in drivers/net/etherne
A memory leak in the nfp_abm_u32_knode_replace() function in drivers/net/ethernet/netronome/nfp/abm/cls.c in the Linux kernel before 5.3.6 allows attackers to cause a denial of service (memory consumption), aka CID-78beef629fd9. NOTE: This has been argued as not a valid vulnerabi
Published
2019-11-18T05:24:23.000Z
Last modified
2024-08-05T02:09:39.167Z
01What is this vulnerability?
A memory leak in the nfp_abm_u32_knode_replace() function in drivers/net/ethernet/netronome/nfp/abm/cls.c in the Linux kernel before 5.3.6 allows attackers to cause a denial of service (memory consumption), aka CID-78beef629fd9. NOTE: This has been argued as not a valid vulnerability. The upstream commit 78beef629fd9 was reverted
02Affected products
| Vendor | Product | Versions |
|---|
| n | a / n/a | n/a |
03Active exploitation status
Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.
04Recommended remediation
- Patch to a fixed version listed in the vendor advisory (see references below).
- Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
- Hunt historical logs for exploitation indicators — see Detection signatures below.
05Technical details
For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.
06Detection signatures
Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.
07Related CVEs
No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.
08Timeline
- Published: 2019-11-18T05:24:23.000Z
- Last modified: 2024-08-05T02:09:39.167Z
09References
- cdn.kernel.org — https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.6
- github.com — https://github.com/torvalds/linux/commit/78beef629fd95be4ed853b2d37b832f766bd96c…
- usn.ubuntu.com — https://usn.ubuntu.com/4209-1/
- security.netapp.com — https://security.netapp.com/advisory/ntap-20191205-0001/
- git.kernel.org — https://git.kernel.org/linus/1d1997db870f4058676439ef7014390ba9e24eb2
- lore.kernel.org — https://lore.kernel.org/lkml/20191204103955.63c4d9af%40cakuba.netronome.com/
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