Vulnerability Monitor

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CVE-2019-9923

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.

Published

2019-03-22T08:29:00.247

Last Modified

2025-08-06T22:15:28.757

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

2.9

Weaknesses

Type: Primary
CWE-476
Type: Secondary
CWE-476

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	gnu	tar	< 1.32	Yes
Operating System	opensuse	leap	15.0	Yes

References

http://git.savannah.gnu.org/cgit/tar.git/commit/?id=cb07844454d8cc9fb21f53ace75975f91185a120 Mailing List, Patch, Vendor Advisory ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00077.html Mailing List, Third Party Advisory ([email protected])
http://savannah.gnu.org/bugs/?55369 Permissions Required, Third Party Advisory ([email protected])
https://bugs.launchpad.net/ubuntu/+source/tar/+bug/1810241 Issue Tracking, Patch, Third Party Advisory ([email protected])
https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E ([email protected])
https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E ([email protected])
http://git.savannah.gnu.org/cgit/tar.git/commit/?id=cb07844454d8cc9fb21f53ace75975f91185a120 Mailing List, Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00077.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://savannah.gnu.org/bugs/?55369 Permissions Required, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://bugs.launchpad.net/ubuntu/+source/tar/+bug/1810241 Issue Tracking, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E (af854a3a-2127-422b-91ae-364da2661108)
https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E (af854a3a-2127-422b-91ae-364da2661108)