CVE-2023-52846
In the Linux kernel, the following vulnerability has been resolved: hsr: Prevent use after free in prp_create_tagged_frame() The prp_fill_rct() function can fail.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.34%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In the Linux kernel, the following vulnerability has been resolved: hsr: Prevent use after free in prp_create_tagged_frame() The prp_fill_rct() function can fail. In that situation, it frees the skb and returns NULL. Meanwhile on the success path, it returns the original skb. So it's straight forward to fix bug by using the returned value.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.34% probability · 27th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/1787b9f0729d318d67cf7c5a95f0c3dba9a7cc18Patch
- https://git.kernel.org/stable/c/6086258bd5ea7b5c706ff62da42b8e271b2401dbPatch
- https://git.kernel.org/stable/c/876f8ab52363f649bcc74072157dfd7adfbabc0dPatch
- https://git.kernel.org/stable/c/a1a485e45d24b1cd8fe834fd6f1b06e2903827daPatch
- https://git.kernel.org/stable/c/d103fb6726904e353b4773188ee3d3acb4078363Patch
- https://git.kernel.org/stable/c/ddf4e04e946aaa6c458b8b6829617cc44af2bffdPatch
- https://git.kernel.org/stable/c/1787b9f0729d318d67cf7c5a95f0c3dba9a7cc18Patch
- https://git.kernel.org/stable/c/6086258bd5ea7b5c706ff62da42b8e271b2401dbPatch
- https://git.kernel.org/stable/c/876f8ab52363f649bcc74072157dfd7adfbabc0dPatch
- https://git.kernel.org/stable/c/a1a485e45d24b1cd8fe834fd6f1b06e2903827daPatch
- https://git.kernel.org/stable/c/d103fb6726904e353b4773188ee3d3acb4078363Patch
- https://git.kernel.org/stable/c/ddf4e04e946aaa6c458b8b6829617cc44af2bffdPatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.