Critical severity9.8NVD Advisory· Published May 3, 2024· Updated Jun 17, 2026
CVE-2023-42117
CVE-2023-42117
Description
Exim Improper Neutralization of Special Elements 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 memory corruption condition. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-17554.
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Affected products
34- osv-coords31 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/chainguard/libspf2pkg:apk/chainguard/libspf2-devpkg:apk/chainguard/libspf2-toolspkg: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:apk/wolfi/libspf2pkg:apk/wolfi/libspf2-devpkg:apk/wolfi/libspf2-toolspkg: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+ 30 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: < 1.2.11-r1
- (no CPE)range: < 1.2.11-r1
- (no CPE)range: < 1.2.11-r1
- (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: < 1.2.11-r1
- (no CPE)range: < 1.2.11-r1
- (no CPE)range: < 1.2.11-r1
- (no CPE)range: < 4.94.2-bp154.2.9.1
- (no CPE)range: < 4.94.2-bp155.5.6.1
- (no CPE)range: < 4.96.2-1.1
- (no CPE)range: < 4.94.2-bp154.2.9.1
- (no CPE)range: < 4.94.2-bp155.5.6.1
Patches
Vulnerability mechanics
References
2News mentions
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