Buffer overflow in Dovecot
CVE-2019-7524
In Dovecot before 2.2.36.3 and 2.3.x before 2.3.5.1, a local attacker can cause a buffer overflow in the indexer-worker process, which can be used to elevate to root. This occurs because of missing checks in the fts and pop3-uidl components.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.012 (66.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 66.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000
Affected products
- Dovecot
- Canonical Ubuntu Linux — versions 14.04, 16.04, 18.04
- Debian Linux — versions 8.0, 9.0
- openSUSE Leap — versions 15.0, 42.3
Weakness classification (CWE)
References
- dovecot.org/security.html (Vendor Advisory)
- dovecot.org/list/dovecot-news/2019-March/000403.html (Vendor Advisory)
- www.openwall.com/lists/oss-security/2019/03/28/1 (mailing-list, Mailing List, Third Party Advisory)
- seclists.org/bugtraq/2019/Mar/59 (mailing-list, Mailing List, Third Party Advisory, Issue Tracking)
- www.debian.org/security/2019/dsa-4418 (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2019/03/msg00038.html (mailing-list, Mailing List, Third Party Advisory)
- usn.ubuntu.com/3928-1/ (vendor-advisory, Third Party Advisory)
- www.securityfocus.com/bid/107672 (VDB Entry, Third Party Advisory, vdb-entry)
- lists.opensuse.org/opensuse-security-announce/2019-04/msg00060.html (vendor-advisory, Mailing List, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2019-04/msg00067.html (vendor-advisory, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-7524?
- CVE-2019-7524 is a high-severity vulnerability in Dovecot, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2019-03-28.
- How severe is CVE-2019-7524?
- High severity. CVSS v3 base score is 8.8 out of 10.