CVE-2018-1000879

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

3.39% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 88.7% of scored records. A rank, not a probability.

NVD base score

6.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-10-08.

Red Hat severity

Low. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2018-12-20 17:00Z7 YR AGO

Last updated

2026-10-08 21:03Z20 DAYS AGO

Reserved

2018-12-13

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-476NULL Pointer DereferenceBase

Data version

5.2

Document digest

cbdd250f7f5d4163298bbeffb6a893e67cf2a2753b3a6d7c2ca20845e92edf13

• github.comhttps://github.com/libarchive/libarchive/pull/1105/commits/15bf44fd2c1ad0e3fd87048b3fcc90c4dcff1175x_refsource_MISC
• bugs.launchpad.nethttps://bugs.launchpad.net/ubuntu/+source/libarchive/+bug/1794909x_refsource_MISC
• github.comhttps://github.com/libarchive/libarchive/pull/1105x_refsource_MISC
• www.securityfocus.com106324http://www.securityfocus.com/bid/106324vdb-entryx_refsource_BID
• lists.fedoraproject.orgFEDORA-2019-0233ec0ff3https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZVXA7PHINVT6DFF6PRLTDTVTXKDLVHNF/vendor-advisoryx_refsource_FEDORA
• lists.fedoraproject.orgFEDORA-2019-fbe83d0e32https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W645KCLWFDBDGFJHG57WOVXGE62QSIJI/vendor-advisoryx_refsource_FEDORA
• lists.fedoraproject.orgFEDORA-2019-c595a93536https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CBOCC2M6YGPZA6US43YK4INPSJZZHRTG/vendor-advisoryx_refsource_FEDORA
• lists.opensuse.orgopenSUSE-SU-2019:1196http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00055.htmlvendor-advisoryx_refsource_SUSE