NULL pointer dereference in Net-Snmp
CVE-2022-24809
net-snmp provides various tools relating to the Simple Network Management Protocol. Prior to version 5.9.2, a user with read-only credentials can use a malformed OID in a `GET-NEXT` to the `nsVacmAccessTable` to cause a NULL pointer dereference. Version 5.9.2 contains a patch. Users should use strong SNMPv3 credentials and avoid sharing the credentials. Those who must use SNMPv1 or SNMPv2c should use a complex community string and enhance the protection by restricting access to a given IP address range.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.011 (64.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 64th percentile — 64.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000
Affected products
- Net-Snmp — versions 0
- Debian Linux — versions 10.0, 11.0
- Fedoraproject Fedora — versions 36
- Red Hat Enterprise Linux — versions 9.0
- Red Hat Enterprise Linux Eus — versions 9.2, 9.4
- Red Hat Enterprise Linux For Arm 64 — versions 9.0, 9.2_aarch64, 9.4_aarch64
- Red Hat Enterprise Linux For Arm 64 Eus — versions 9.4_aarch64
- Red Hat Enterprise Linux For IBM Z Systems — versions 9.0, 9.2_s390x, 9.4_s390x
- Red Hat Enterprise Linux For IBM Z Systems Eus — versions 9.4_s390x
- Red Hat Enterprise Linux For Power Little Endian — versions 9.0
Weakness classification (CWE)
References
- github.com/net-snmp/net-snmp/commit/ce66eb97c17aa9a48bc079be7b65895266fa6775 (Patch)
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory)
- lists.debian.org/debian-lts-announce/2022/08/msg00020.html (Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (Product)
- security.gentoo.org/glsa/202210-29 (Third Party Advisory)
- www.debian.org/security/2022/dsa-5209 (Third Party Advisory)
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory)
Frequently asked questions
- What is CVE-2022-24809?
- CVE-2022-24809 is a medium-severity vulnerability in Net-Snmp, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2024-04-16.
- How severe is CVE-2022-24809?
- Medium severity. CVSS v3 base score is 6.5 out of 10.