CVE-2023-6270
The aoecmd_cfg_pkts() function improperly updates the refcnt on `struct net_device`, and a use-after-free can be triggered by racing between the free on the struct and the access through the `skbtxq` global queue.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.41%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A flaw was found in the ATA over Ethernet (AoE) driver in the Linux kernel. The aoecmd_cfg_pkts() function improperly updates the refcnt on `struct net_device`, and a use-after-free can be triggered by racing between the free on the struct and the access through the `skbtxq` global queue. This could lead to a denial of service condition or potential code execution.
- CVSS 3.1
- 7.0 HIGHCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.41% probability · 34th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- debian/debian linux · linux/linux kernel · fedoraproject/fedora
- Source
- secalert@redhat.com
References
- https://access.redhat.com/security/cve/CVE-2023-6270Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2256786Issue Tracking, Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2023-6270Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2256786Issue Tracking, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.htmlThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.htmlThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.