Buffer overflow in Linux Kernel
CVE-2023-1078
A flaw was found in the Linux Kernel in RDS (Reliable Datagram Sockets) protocol. The rds_rm_zerocopy_callback() uses list_entry() on the head of a list causing a type confusion. Local user can trigger this with rds_message_put(). Type confusion leads to `struct rds_msg_zcopy_info *info` actually points to something else that is potentially controlled by local user. It is known how to trigger this, which causes an out of bounds access, and a lock corruption.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.002 (14.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 15th percentile — 14.7% 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
- Linux Kernel
Weakness classification (CWE)
References
- git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/ (Patch, Mailing List, Vendor Advisory)
- lists.debian.org/debian-lts-announce/2023/05/msg00005.html (mailing-list, Mailing List, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2023/05/msg00006.html (mailing-list, Mailing List, Third Party Advisory)
- security.netapp.com/advisory/ntap-20230505-0004/ (Third Party Advisory)
- www.openwall.com/lists/oss-security/2023/11/05/1 (mailing-list)
Frequently asked questions
- What is CVE-2023-1078?
- CVE-2023-1078 is a high-severity vulnerability in Linux Kernel, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2023-03-27.
- How severe is CVE-2023-1078?
- High severity. CVSS v3 base score is 7.8 out of 10.