VulnerabilityModified
CVE-2023-3773
This issue may allow a malicious user with CAP_NET_ADMIN privileges to cause a 4 byte out-of-bounds read of XFRMA_MTIMER_THRESH when parsing netlink attributes, leading to potential leakage of sensitive heap data to userspace.
MEDIUM 4.4EPSS 0.25%
Does this matter?
Lower severity and a low EPSS score (0.25%). Track it; it rarely justifies an emergency change on its own.
Description
A flaw was found in the Linux kernel’s IP framework for transforming packets (XFRM subsystem). This issue may allow a malicious user with CAP_NET_ADMIN privileges to cause a 4 byte out-of-bounds read of XFRMA_MTIMER_THRESH when parsing netlink attributes, leading to potential leakage of sensitive heap data to userspace.
- CVSS 3.1
- 4.4 MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 0.25% probability · 17th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- redhat/enterprise linux · fedoraproject/fedora · linux/linux kernel · debian/debian linux
- Source
- secalert@redhat.com
References
- https://access.redhat.com/errata/RHSA-2023:6583
- https://access.redhat.com/security/cve/CVE-2023-3773Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2218944Issue Tracking, Third Party Advisory
- https://access.redhat.com/errata/RHSA-2023:6583
- https://access.redhat.com/security/cve/CVE-2023-3773Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2218944Issue Tracking, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
- https://www.debian.org/security/2023/dsa-5492
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.