Critical severity9.8NVD Advisory· Published May 3, 2024· Updated Jun 17, 2026
CVE-2023-42115
CVE-2023-42115
Description
Exim AUTH Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Exim. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the smtp service, which listens on TCP port 25 by default. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of a buffer. An attacker can leverage this vulnerability to execute code in the context of the service account. . Was ZDI-CAN-17434.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
28- osv-coords25 versionspkg:apk/chainguard/eximpkg:apk/chainguard/exim-cdbpkg:apk/chainguard/exim-dbmdbpkg:apk/chainguard/exim-dnsdbpkg:apk/chainguard/exim-docpkg:apk/chainguard/exim-mysqlpkg:apk/chainguard/exim-pgsqlpkg:apk/chainguard/exim-scriptspkg:apk/chainguard/exim-sqlitepkg:apk/chainguard/exim-utilspkg:apk/wolfi/eximpkg:apk/wolfi/exim-cdbpkg:apk/wolfi/exim-dbmdbpkg:apk/wolfi/exim-dnsdbpkg:apk/wolfi/exim-docpkg:apk/wolfi/exim-mysqlpkg:apk/wolfi/exim-pgsqlpkg:apk/wolfi/exim-scriptspkg:apk/wolfi/exim-sqlitepkg:apk/wolfi/exim-utilspkg:rpm/opensuse/exim&distro=openSUSE%20Leap%2015.4pkg:rpm/opensuse/exim&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/exim&distro=openSUSE%20Tumbleweedpkg:rpm/suse/exim&distro=SUSE%20Package%20Hub%2015%20SP4pkg:rpm/suse/exim&distro=SUSE%20Package%20Hub%2015%20SP5
< 4.96.1-r0+ 24 more
- (no CPE)range: < 4.96.1-r0
- (no CPE)range: < 4.96.1-r0
- (no CPE)range: < 4.96.1-r0
- (no CPE)range: < 4.96.1-r0
- (no CPE)range: < 4.96.1-r0
- (no CPE)range: < 4.96.1-r0
- (no CPE)range: < 4.96.1-r0
- (no CPE)range: < 4.96.1-r0
- (no CPE)range: < 4.96.1-r0
- (no CPE)range: < 4.96.1-r0
- (no CPE)range: < 4.96.1-r0
- (no CPE)range: < 4.96.1-r0
- (no CPE)range: < 4.96.1-r0
- (no CPE)range: < 4.96.1-r0
- (no CPE)range: < 4.96.1-r0
- (no CPE)range: < 4.96.1-r0
- (no CPE)range: < 4.96.1-r0
- (no CPE)range: < 4.96.1-r0
- (no CPE)range: < 4.96.1-r0
- (no CPE)range: < 4.96.1-r0
- (no CPE)range: < 4.94.2-bp155.5.3.1
- (no CPE)range: < 4.94.2-bp155.5.3.1
- (no CPE)range: < 4.96.1-1.1
- (no CPE)range: < 4.94.2-bp155.5.3.1
- (no CPE)range: < 4.94.2-bp155.5.3.1
Patches
Vulnerability mechanics
References
1- www.zerodayinitiative.com/advisories/ZDI-23-1469/nvdThird Party Advisory
News mentions
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