NULL pointer dereference in Dovecot
CVE-2020-10957
In Dovecot before 2.3.10.1, unauthenticated sending of malformed parameters to a NOOP command causes a NULL Pointer Dereference and crash in submission-login, submission, or lmtp.
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: 0.072 (94.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 94.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.072 · newest: 0.072 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- dovecot.org/security (Vendor Advisory)
- www.openwall.com/lists/oss-security/2020/05/18/1 (Mailing List, Third Party Advisory)
- www.openwall.com/lists/oss-security/2020/05/18/1 (mailing-list, Mailing List, Third Party Advisory)
- usn.ubuntu.com/4361-1/ (vendor-advisory)
- seclists.org/fulldisclosure/2020/May/37 (mailing-list, Exploit, Third Party Advisory)
- packetstormsecurity.com/files/157771/Open-Xchange-Dovecot-2.3.10-Null-Pointer-D…
- www.debian.org/security/2020/dsa-4690 (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2020-05/msg00059.html (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
Frequently asked questions
- What is CVE-2020-10957?
- CVE-2020-10957 is a high-severity vulnerability in Dovecot, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2020-05-18.
- How severe is CVE-2020-10957?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2020-10957 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.