Bug#947124: apache-log4j1.2: CVE-2019-17571

[Salvatore Bonaccorso]

Source: apache-log4j1.2
Version: 1.2.17-8
Severity: grave
Tags: security upstream
Justification: user security hole
Control: found -1 1.2.17-7
Control: found -1 1.2.17-5

Hi,

The following vulnerability was published for apache-log4j1.2.

CVE-2019-17571[0]:
| Included in Log4j 1.2 is a SocketServer class that is vulnerable to
| deserialization of untrusted data which can be exploited to remotely
| execute arbitrary code when combined with a deserialization gadget
| when listening to untrusted network traffic for log data. This affects
| Log4j versions up to 1.2 up to 1.2.17.

Note that this issue correponds to the old CVE-2017-5645 for the 2.x
branch codebasis[1].

1.2 reached end of life in 2015 accordingly, and the "right move"
would be to switch to 2.x. Which raises a question from security
support point of view: We would need to fade out apache-log4j1.2 for
bullseye at least now right? From a quick check via a simulated dak
rm, it looks right now impossible to actually remove it. Are there
current plans from the Debian Java Maintainers for that? Or is there
something I currently just miss from the big picture?

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-2019-17571
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17571
[1] https://www.openwall.com/lists/oss-security/2019/12/19/2

Regards,
Salvatore