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CVE-2019-9923

Good to know:

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Date: March 22, 2019

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.

Language: DEBIAN

Severity Score

Related Resources (13)

https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4@%3Cissues.bookkeeper.apache.org%3E
https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b@%3Cissues.bookkeeper.apache.org%3E
https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
https://nvd.nist.gov/vuln/detail/CVE-2019-9923
https://security-tracker.debian.org/tracker/CVE-2019-9923
http://savannah.gnu.org/bugs/?55369
https://access.redhat.com/security/cve/CVE-2019-9923
http://git.savannah.gnu.org/cgit/tar.git/commit/?id=cb07844454d8cc9fb21f53ace75975f91185a120
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00077.html
https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
https://people.canonical.com/~ubuntu-security/cve/CVE-2019-9923
https://bugs.launchpad.net/ubuntu/+source/tar/+bug/1810241
https://www.mend.io/vulnerability-database/CVE-2019-9923

Severity Score

Weakness Type (CWE)

NULL Pointer Dereference

CWE-476

Top Fix

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Upgrade Version

Upgrade to version http://git.savannah.gnu.org/git/tar.git - http://git.savannah.gnu.org/git/tar/commit/44cfdfb8b61e2b84b37a61c18a83ef0916e9a0d2;https://cgit.git.savannah.gnu.org/cgit/tar.git - https://cgit.savannah.gnu.org/cgit/tar/commit/cb07844454d8cc9fb21f53ace75975f91185a120

Learn More

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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