CVE-2023-1078
It is known how to trigger this, which causes an out of bounds access, and a lock corruption.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.25%). 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 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.
- 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
- 0.25% probability · 16th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-787, CWE-843
- Affected
- linux/linux kernel
- Source
- secalert@redhat.com
References
- http://www.openwall.com/lists/oss-security/2023/11/05/1
- https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=f753a68980cf4b59a80fe677619da2b1804f526dMailing List, Patch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2023/05/msg00005.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/05/msg00006.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20230505-0004/Third Party Advisory
- http://www.openwall.com/lists/oss-security/2023/11/05/1
- https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=f753a68980cf4b59a80fe677619da2b1804f526dMailing List, Patch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2023/05/msg00005.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/05/msg00006.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20230505-0004/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.