The remote Debian host is missing a security-related update.
Multiple vulnerabilities were discovered in the implementation of the Perl programming language. The Common Vulnerabilities and Exposures project identifies the following problems : - CVE-2018-6797 Brian Carpenter reported that a crafted regular expression could cause a heap buffer write overflow, with control over the bytes written. - CVE-2018-6798 Nguyen Duc Manh reported that matching a crafted locale dependent regular expression can cause a heap-based buffer over-read and potentially information disclosure. - CVE-2018-6913 GwanYeong Kim reported that 'pack()' could cause a heap buffer write overflow with a large item count.
Upgrade the perl packages. For the oldstable distribution (jessie), these problems have been fixed in version 5.20.2-3+deb8u10. The oldstable distribution (jessie) update contains only a fix for CVE-2018-6913. For the stable distribution (stretch), these problems have been fixed in version 5.24.1-3+deb9u3.