Bug#913528: lighttpd: CVE-2018-19052

[Salvatore Bonaccorso <carnil@debian.org>]

Source: lighttpd
Version: 1.4.49-1.1
Severity: important
Tags: security upstream
Control: found -1 1.4.45-1

Hi,

The following vulnerability was published for lighttpd.

CVE-2018-19052[0]:
| An issue was discovered in mod_alias_physical_handler in mod_alias.c in
| lighttpd before 1.4.50. There is potential ../ path traversal of a
| single directory above an alias target, with a specific mod_alias
| configuration where the matched alias lacks a trailing '/' character,
| but the alias target filesystem path does have a trailing '/'
| character.

If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2018-19052
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-19052
[1] https://github.com/lighttpd/lighttpd1.4/commit/2105dae0f9d7a964375ce681e53cb165375f84c1

Regards,
Salvatore