[Secure-testing-team] Bug#859456: libarchive: CVE-2016-10209

[Salvatore Bonaccorso]

Source: libarchive
Version: 3.1.2-11
Severity: important
Tags: upstream security
Forwarded: https://github.com/libarchive/libarchive/issues/842

Hi,

the following vulnerability was published for libarchive.

CVE-2016-10209[0]:
| The archive_wstring_append_from_mbs function in archive_string.c in
| libarchive 3.2.2 allows remote attackers to cause a denial of service
| (NULL pointer dereference and application crash) via a crafted archive
| file.

It was reported upstream at [1] and if I'm correct the fix should be
[2]. Can you confirm that? 

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-2016-10209
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-10209
[1] https://github.com/libarchive/libarchive/issues/842
[2] https://github.com/libarchive/libarchive/commit/42a3408ac7df1e69bea9ea12b72e14f59f7400c0

Please adjust the affected versions in the BTS as needed.

Regarding an update, I do not think this would warrant a DSA on it's
own but would be great once fixed for sid and stretch, if a fix can as
well land in jessie (via a point release as well for the other issues
marked currently no-dsa).

Regards,
Salvatore

-- System Information:
Debian Release: 9.0
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 4.9.0-2-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)