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CVE-2018-1000880

MEDIUM
6.5
CVSS Score
Published: December 20, 2018 at 05:00 PM UTC
Updated: October 8, 2026 at 09:17 PM UTC
4 products affected across 4 vendorsFedoraUbuntu LinuxLeap

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Severity
MEDIUM6.5
Exploit prediction
EPSS 4%
SSVC
No known exploit

Description

libarchive version commit 9693801580c0cf7c70e862d305270a16b52826a7 onwards (release v3.2.0 onwards) contains a CWE-20: Improper Input Validation vulnerability in WARC parser - libarchive/archive_read_support_format_warc.c, _warc_read() that can result in DoS - quasi-infinite run time and disk usage from tiny file. This attack appear to be exploitable via the victim must open a specially crafted WARC file.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Ubuntu Linux· Canonicalrubygems
95%
14.0416.0418.0418.10
Fedora· Fedora Projectrpm
95%
2930
Libarchive· Libarchive
95%
3.2.0 ≤ v < 3.4.0*
Affected range stops below 3.4.0, so it looks safe — our inference, not a vendor statement
Leap· openSUSEdrupal
95%
15.0

References (10)

Vendor Advisoryx_refsource_SUSEMailing ListThird Party Advisory
Source: [email protected]
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00055.html
VDB Entryx_refsource_BIDThird Party Advisory
Source: [email protected]
http://www.securityfocus.com/bid/106324
x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://bugs.launchpad.net/ubuntu/+source/libarchive/+bug/1794909
x_refsource_MISCThird Party Advisory
Source: [email protected]
https://github.com/libarchive/libarchive/pull/1105
x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/libarchive/libarchive/pull/1105/commits/9c84b7426660c09c18cc349f6d70b5f8168b5680
Vendor Advisoryx_refsource_FEDORA
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CBOCC2M6YGPZA6US43YK4INPSJZZHRTG/
Vendor Advisoryx_refsource_FEDORA
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W645KCLWFDBDGFJHG57WOVXGE62QSIJI/
Vendor Advisoryx_refsource_FEDORA
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZVXA7PHINVT6DFF6PRLTDTVTXKDLVHNF/

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.5MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-119

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