CVE-2023-53495
In the Linux kernel, the following vulnerability has been resolved: net: ethernet: mvpp2_main: fix possible OOB write in mvpp2_ethtool_get_rxnfc() rules is allocated in ethtool_get_rxnfc and the size is determined by rule_cnt from user space.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.16%). 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: net: ethernet: mvpp2_main: fix possible OOB write in mvpp2_ethtool_get_rxnfc() rules is allocated in ethtool_get_rxnfc and the size is determined by rule_cnt from user space. So rule_cnt needs to be check before using rules to avoid OOB writing or NULL pointer dereference.
- 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
- 0.16% probability · 6th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/349638f7e5d3c7d328565587bb7b0454bbee02e2Patch
- https://git.kernel.org/stable/c/51fe0a470543f345e3c62b6798929de3ddcedc1dPatch
- https://git.kernel.org/stable/c/5bb09dddc724c5f7c4dc6dd3bfebd685eecd93e8Patch
- https://git.kernel.org/stable/c/61054a8ddb176b155a8f2bacdfefb3727187f5d9Patch
- https://git.kernel.org/stable/c/625b70d31dd4df4b96b3ddcbe251debb33bd67f5Patch
- https://git.kernel.org/stable/c/ba6673824efa3dc198b04a54e69dce480066d7d9Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.