Resource exhaustion in Apache Spamassassin
CVE-2019-12420
In Apache SpamAssassin before 3.4.3, a message can be crafted in a way to use excessive resources. Upgrading to SA 3.4.3 as soon as possible is the recommended fix but details will not be shared publicly.
Vulnerability class: DoS (Denial of Service)
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 (94.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 94.3% 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
- Apache Spamassassin — versions Apache SpamAssassin prior to 3.4.3
- Apache Spamassassin
- Debian Linux — versions 8.0, 9.0, 10.0
Weakness classification (CWE)
References
- lists.apache.org/thread.html/64cf76749956dd08f7d5b86ec9f3321f382cfd7fe717ccd1be… (mailing-list)
- lists.apache.org/thread.html/e3c2367351286b77a74a082e2b66b793cceefa7b6ea9dcd162… (mailing-list)
- lists.apache.org/thread.html/5ef362d6da12126fafc81443309ca95d872d1bfd011fe4b269… (mailing-list)
- www.openwall.com/lists/oss-security/2019/12/12/2 (mailing-list, Mailing List, Third Party Advisory)
- lists.apache.org/thread.html/5863d6c42fc9595a29566732f12348cde0ca0e41bda91695c6… (mailing-list)
- svn.apache.org/repos/asf/spamassassin/branches/3.4/build/announcements/3.4.3.txt (Mailing List, Vendor Advisory)
- bz.apache.org/SpamAssassin/show_bug.cgi (Permissions Required)
- www.debian.org/security/2019/dsa-4584 (vendor-advisory, Third Party Advisory)
- seclists.org/bugtraq/2019/Dec/27 (mailing-list, Mailing List, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2019/12/msg00019.html (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-12420?
- CVE-2019-12420 is a high-severity vulnerability in Apache Spamassassin, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2019-12-12.
- How severe is CVE-2019-12420?
- High severity. CVSS v3 base score is 7.5 out of 10.