CVE-2018-1000168

HIGH
7.5
CVSS Score
Published: May 8, 2018 at 03:00 PM UTC
Updated: June 17, 2026 at 01:32 AM UTC
3 products affected across 3 vendorsDebian LinuxNode.jsNGHTTP2

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Severity
HIGH7.5
Exploit prediction
EPSS 11%
SSVC
No known exploit

Description

nghttp2 version >= 1.10.0 and nghttp2 <= v1.31.0 contains an Improper Input Validation CWE-20 vulnerability in ALTSVC frame handling that can result in segmentation fault leading to denial of service. This attack appears to be exploitable via network client. This vulnerability appears to have been fixed in >= 1.31.1.

Affected

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

1.10.0 ≤ v ≤ 1.31.0
10.0.0 ≤ v < 10.4.16.0.0 ≤ v ≤ 6.8.18.4.0 ≤ v ≤ 8.17.09.0.0 ≤ v ≤ 9.11.2
Affected range stops below 10.4.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (6)

VDB Entryx_refsource_BIDBroken LinkThird Party Advisory
http://www.securityfocus.com/bid/103952
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2019:0366
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2019:0367
Mailing Listx_refsource_MLISTThird Party Advisory
https://lists.debian.org/debian-lts-announce/2021/10/msg00011.html
x_refsource_CONFIRMRelease NotesThird Party Advisory
https://nodejs.org/en/blog/vulnerability/june-2018-security-releases/

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

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

CVSS

7.5HIGHCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-20CWE-476

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