NULL pointer dereference in Oracle Zfs Storage Appliance Kit
CVE-2020-25866
In Wireshark 3.2.0 to 3.2.6 and 3.0.0 to 3.0.13, the BLIP protocol dissector has a NULL pointer dereference because a buffer was sized for compressed (not uncompressed) messages. This was addressed in epan/dissectors/packet-blip.c by allowing reasonable compression ratios and rejecting ZIP bombs.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.039 (90.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 90.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.039 · newest: 0.039 · change: 0.000
Affected products
- Oracle Zfs Storage Appliance Kit — versions 8.8
- Wireshark
- Fedoraproject Fedora — versions 31, 32, 33
- openSUSE Leap — versions 15.1, 15.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.wireshark.org/security/wnpa-sec-2020-13.html (Vendor Advisory)
- gitlab.com/wireshark/wireshark/-/issues/16866 (Exploit, Third Party Advisory, Issue Tracking)
- gitlab.com/wireshark/wireshark/-/commit/4a948427100b6c109f4ec7b4361f0d2aec5e5c3f (Patch, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2020-11/msg00035.html (vendor-advisory, Mailing List, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2020-11/msg00038.html (vendor-advisory, Mailing List, Third Party Advisory)
- www.oracle.com/security-alerts/cpujan2021.html (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-25866?
- CVE-2020-25866 is a high-severity vulnerability in Oracle Zfs Storage Appliance Kit, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2020-10-06.
- How severe is CVE-2020-25866?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2020-25866 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.