CVE-2019-16928: Exim Out-of-bounds Write Vulnerability
Critical · CVSS 9.8 (CVSS 3.1)KEV known exploitedEPSS 41.6%, 99th percentilePublished Updated Assigner: mitre
In CISA’s Known Exploited Vulnerabilities catalog: Exim Out-of-bounds Write Vulnerability.
Added , federal remediation due . Known ransomware use: Unknown.
Required action: Apply updates per vendor instructions.
Description
Exim 4.92 through 4.92.2 allows remote code execution, a different vulnerability than CVE-2019-15846. There is a heap-based buffer overflow in string_vformat in string.c involving a long EHLO command.
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Status incidents that name it
No tracked status incident names this CVE.
Affected vendors and products
Exim: Exim Internet Mailer
References
- CVE record on cve.org (opens in new tab)
- NVD entry (opens in new tab)
- bugs.exim.org/show_bug.cgi (opens in new tab)
- git.exim.org/exim.git/commit/478effbfd9c3cc5a627fc671d4bf94d13670d65f (opens in new tab)
- lists.exim.org/lurker/message/20190927.032457.c1044d4c.en.html (opens in new tab)
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EED7… (opens in new tab)
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T3TJ… (opens in new tab)
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UY6H… (opens in new tab)
- seclists.org/bugtraq/2019/Sep/60 (opens in new tab)
- security.gentoo.org/glsa/202003-47 (opens in new tab)
- usn.ubuntu.com/4141-1/ (opens in new tab)
- www.debian.org/security/2019/dsa-4536 (opens in new tab)
- www.openwall.com/lists/oss-security/2019/09/28/1 (opens in new tab)
- www.openwall.com/lists/oss-security/2019/09/28/2 (opens in new tab)
- www.openwall.com/lists/oss-security/2019/09/28/3 (opens in new tab)
- www.openwall.com/lists/oss-security/2019/09/28/4 (opens in new tab)
- CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (opens in new tab)
- This product uses data from the NVD API but is not endorsed or certified by the NVD. (opens in new tab)
- Known Exploited Vulnerabilities catalog from CISA. (opens in new tab)
- EPSS scores from FIRST (Exploit Prediction Scoring System). (opens in new tab)