VulnerabilityModified
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).
CRITICAL 9.8EPSS 8.62%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (8.62%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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).
- CVSS 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 8.62% probability · 95th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-19
- Affected
- exim/exim · debian/debian linux
- Source
- cve@mitre.org
References
- http://exim.org/static/doc/security/CVE-2019-13917.txtPatch, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2019/07/26/5Third Party Advisory
- https://seclists.org/bugtraq/2019/Jul/51Third Party Advisory
- https://security.gentoo.org/glsa/201909-06
- https://www.debian.org/security/2019/dsa-4488Third Party Advisory
- http://exim.org/static/doc/security/CVE-2019-13917.txtPatch, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2019/07/26/5Third Party Advisory
- https://seclists.org/bugtraq/2019/Jul/51Third Party Advisory
- https://security.gentoo.org/glsa/201909-06
- https://www.debian.org/security/2019/dsa-4488Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.