VulnerabilityModified
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.
HIGH 7.5EPSS 3.03%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.03%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 3.03% probability · 87th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- gnu/tar · opensuse/leap
- Source
- cve@mitre.org
References
- http://git.savannah.gnu.org/cgit/tar.git/commit/?id=cb07844454d8cc9fb21f53ace75975f91185a120Mailing List, Patch, Vendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00077.htmlMailing List, Third Party Advisory
- http://savannah.gnu.org/bugs/?55369Permissions Required, Third Party Advisory
- https://bugs.launchpad.net/ubuntu/+source/tar/+bug/1810241Issue Tracking, Patch, Third Party Advisory
- https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
- https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
- http://git.savannah.gnu.org/cgit/tar.git/commit/?id=cb07844454d8cc9fb21f53ace75975f91185a120Mailing List, Patch, Vendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00077.htmlMailing List, Third Party Advisory
- http://savannah.gnu.org/bugs/?55369Permissions Required, Third Party Advisory
- https://bugs.launchpad.net/ubuntu/+source/tar/+bug/1810241Issue Tracking, Patch, Third Party Advisory
- https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
- https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.