NULL pointer dereference in Linux Kernel
CVE-2023-1095
In nf_tables_updtable, if nf_tables_table_enable returns an error, nft_trans_destroy is called to free the transaction object. nft_trans_destroy() calls list_del(), but the transaction was never placed on a list -- the list head is all zeroes, this results in a NULL pointer dereference.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.002 (10.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 11th percentile — 10.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Linux Kernel
- Red Hat Enterprise Linux — versions 8.0, 9.0
- Linux Kernel Netfilter Subsystem. — versions Fixed in 6.0-rc1
Weakness classification (CWE)
References
- bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- github.com/torvalds/linux/commit/580077855a40741cf511766129702d97ff02f4d9 (Patch)
Frequently asked questions
- What is CVE-2023-1095?
- CVE-2023-1095 is a medium-severity vulnerability in Linux Kernel, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2023-02-28.
- How severe is CVE-2023-1095?
- Medium severity. CVSS v3 base score is 5.5 out of 10.