CVE-2019-14868

HIGH7.4

In ksh version 20120801, a flaw was found in the way it evaluates certain environment variables

Published Apr 2, 2020

Modified 1 years ago

Details

In ksh version 20120801, a flaw was found in the way it evaluates certain environment variables. An attacker could use this flaw to override or bypass environment restrictions to execute shell commands. Services and applications that allow remote unauthenticated attackers to provide one of those environment variables could allow them to exploit this issue remotely.

References

WEB

http://seclists.org/fulldisclosure/2020/May/53

WEB

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14868

WEB

https://github.com/att/ast/commit/c7de8b641266bac7c77942239ac659edfee9ecd2

WEB

https://lists.debian.org/debian-lts-announce/2020/07/msg00015.html

WEB

https://support.apple.com/kb/HT211170

ADVISORY