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.

CVSS 3.1

7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

3.1% chance of exploitation in the next 30 days; higher than 87% of CVEs (scores of 2026-10-25)

CWE

CWE-476

Published

2019-03-22

Modified

2026-10-14

Record from

the NVD, synced 2026-10-19

Affected

• gnu:tar
• opensuse:leap

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
• https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E

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