Vulnerability in Exim
CVE-2019-13917
Exim 4.85 through 4.92 (fixed in 4.92.1) allows remote code execution as root in some unusual configurations that use the ${sort } expansion for items that can be controlled by an attacker (e.g., $local_part or $domain).
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.086 (94.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 95th percentile — 94.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.086 · newest: 0.086 · change: 0.000
Affected products
- Exim
- Debian Linux — versions 9.0, 10.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- exim.org/static/doc/security/CVE-2019-13917.txt (Patch, Vendor Advisory)
- www.debian.org/security/2019/dsa-4488 (vendor-advisory, Third Party Advisory)
- www.openwall.com/lists/oss-security/2019/07/26/5 (mailing-list, Third Party Advisory)
- seclists.org/bugtraq/2019/Jul/51 (mailing-list, Third Party Advisory)
- security.gentoo.org/glsa/201909-06 (vendor-advisory)
Frequently asked questions
- What is CVE-2019-13917?
- CVE-2019-13917 is a critical-severity vulnerability in Exim, classified under CWE-19. CVSS score: 9.8/10. Published 2019-07-25.
- How severe is CVE-2019-13917?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2019-13917 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.