Out-of-bounds Read in Linux Kernel
CVE-2023-3268
An out of bounds (OOB) memory access flaw was found in the Linux kernel in relay_file_read_start_pos in kernel/relay.c in the relayfs. This flaw could allow a local attacker to crash the system or leak kernel internal information.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H.
EPSS exploit prediction
EPSS: 0.005 (39.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 39th percentile — 39.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Linux Kernel
- Linux Kernel
- Debian Linux — versions 10.0, 11.0, 12.0
- Kernel — versions Kernel version prior to 6.4-rc1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- lore.kernel.org/lkml/1682238502-1892-1-git-send-email-yangpc@wangsu.com/T/ (Vendor Advisory)
- cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3.2 (Mailing List, Release Notes)
- www.debian.org/security/2023/dsa-5448 (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2023/07/msg00030.html (mailing-list, Mailing List, Third Party Advisory)
- git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/ (Patch)
- www.debian.org/security/2023/dsa-5480 (vendor-advisory, Third Party Advisory)
- security.netapp.com/advisory/ntap-20230824-0006/ (Third Party Advisory)
- lists.debian.org/debian-lts-announce/2023/10/msg00027.html (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2023-3268?
- CVE-2023-3268 is a high-severity vulnerability in Linux Kernel, classified under Out-of-bounds Read. CVSS score: 7.1/10. Published 2023-06-16.
- How severe is CVE-2023-3268?
- High severity. CVSS v3 base score is 7.1 out of 10.
- Is CVE-2023-3268 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.