Vulnerability CVE-2019-9923
Published: 2019-03-22

Description:
pax_decode_header in sparse.c in GNU Tar before 1.32 had a NULL pointer dereference when parsing certain archives that have malformed extended headers.

Type:

CWE-476

 (NULL Pointer Dereference)

CVSS2 => (AV:N/AC:L/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
Opensuse -> LEAP 
GNU -> TAR 

 References:
http://git.savannah.gnu.org/cgit/tar.git/commit/?id=cb07844454d8cc9fb21f53ace75975f91185a120
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00077.html
http://savannah.gnu.org/bugs/?55369
https://bugs.launchpad.net/ubuntu/+source/tar/+bug/1810241
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