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Fencer Vulns
critical 9.1

CVE-2018-1000301 json

curl version curl 7.20.0 to and including curl 7.59.0 contains a CWE-126: Buffer Over-read vulnerability in denial of service that can resu…

published 2018-05-24 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-1896

cvss
9.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
5.8%
EPSS 5.8% chance of exploitation in 30 days, percentile 93%
public exploits
0
none known

Summary

curl version curl 7.20.0 to and including curl 7.59.0 contains a CWE-126: Buffer Over-read vulnerability in denial of service that can result in curl can be tricked into reading data beyond the end of a heap based buffer used to store downloaded RTSP content.. This vulnerability appears to have been fixed in curl < 7.20.0 and curl >= 7.60.0.

Patch / fix

  • oracle communications_webrtc_session_controller 7.2
  • curl Debian 14, Debian 13, Debian 12 7.60.0-1

debian advisories DEBIAN-CVE-2018-1000301

  • curl Ubuntu 14.04 LTS 7.35.0-1ubuntu2.16
  • curl Ubuntu 16.04 LTS 7.47.0-1ubuntu2.8
  • curl Ubuntu 18.04 LTS 7.58.0-2ubuntu3.1

ubuntu advisories UBUNTU-CVE-2018-1000301

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • httpd24-curl RHEL 3 SOFTWARE_COLLECTIONS 7.61.1-1.el6
  • httpd24-curl RHEL 3 SOFTWARE_COLLECTIONS 7.61.1-1.el7
  • httpd24-httpd RHEL 3 SOFTWARE_COLLECTIONS 2.4.34-7.el6
  • httpd24-httpd RHEL 3 SOFTWARE_COLLECTIONS 2.4.34-7.el7
  • httpd24-mod_md RHEL 3 SOFTWARE_COLLECTIONS 2.4.34-7.el7
  • httpd24-libcurl RHEL 3 SOFTWARE_COLLECTIONS 7.61.1-1.el6
  • httpd24-libcurl RHEL 3 SOFTWARE_COLLECTIONS 7.61.1-1.el7
  • httpd24-mod_ssl RHEL 3 SOFTWARE_COLLECTIONS 1:2.4.34-7.el6

red hat advisories RHSA-2020:0594RHSA-2020:0544RHSA-2018:3558RHSA-2018:3157

  • curl SLES 12 SP3, SLES 12 SP2-BCL, SLED 12 SP3 +9 more 7.37.0-37.23.1
  • curl SLES for SAP 11 SP4, SLES 11 SP4, SLE Software Development Kit 11 SP4 7.37.0-70.30.1
  • curl-openssl1 SLES 11-SECURITY 7.37.0-70.30.1

suse advisories SUSE-SU-2018:1327-2SUSE-SU-2018:1478-1SUSE-SU-2018:1327-1

  • curl openSUSE Tumbleweed 7.79.1-1.1

opensuse advisories openSUSE-SU-2024:10582-1

  • curl Alpine 3.24, Alpine 3.23, Alpine 3.22 +18 more 7.60.0-r0

alpine advisories ALPINE-CVE-2018-1000301

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • curl Arch Linux 7.60.0-1
  • lib32-curl Arch Linux 7.60.0-1
  • lib32-libcurl-compat Arch Linux 7.60.0-1
  • lib32-libcurl-gnutls Arch Linux 7.60.0-1
  • libcurl-compat Arch Linux 7.60.0-1
  • libcurl-gnutls Arch Linux 7.60.0-1

arch linux advisories AVG-694AVG-695AVG-696AVG-697AVG-698AVG-699

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2018-1000301 updated cvss 5.4

curl: Out-of-bounds heap read when missing RTSP headers allows information leak or denial of service

  • Red Hat .NET Core 1.0 on Red Hat Enterprise Linux rh-dotnetcore10-curl Red Hat .NET Core 1.1 on Red Hat Enterprise Linux rh-dotnetcore11-curl Red Hat .NET Core 2.0 on Red Hat Enterprise Linux rh-dotnet20-curl
    affected: no fix planned “Out of support scope”
  • Red Hat .NET Core 2.1 on Red Hat Enterprise Linux rh-dotnet21-curl, rh-dotnet21-libcurl Red Hat JBoss Enterprise Web Server 3 curl
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux Client (v. 7) curl 7.29.0-51.el7, nss-pem 1.0.3-5.el7, libcurl 7.29.0-51.el7 Red Hat Enterprise Linux Client Optional (v. 7) libcurl-devel 7.29.0-51.el7, curl-debuginfo 7.29.0-51.el7 Red Hat Enterprise Linux ComputeNode (v. 7) curl 7.29.0-51.el7, nss-pem 1.0.3-5.el7, libcurl 7.29.0-51.el7
    fixed: vendor fix RHSA-2018:3157
  • Red Hat Enterprise Linux ComputeNode EUS (v. 7.5) curl 7.29.0-46.el7_5.1, libcurl 7.29.0-46.el7_5.1
    fixed: vendor fix RHSA-2020:0544
  • Red Hat Enterprise Linux ComputeNode Optional (v. 7) libcurl-devel 7.29.0-51.el7, curl-debuginfo 7.29.0-51.el7
    fixed: vendor fix RHSA-2018:3157
  • Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.5) libcurl-devel 7.29.0-46.el7_5.1, curl-debuginfo 7.29.0-46.el7_5.1
    fixed: vendor fix RHSA-2020:0544
  • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) curl 7.29.0-51.el7, nss-pem 1.0.3-5.el7, libcurl 7.29.0-51.el7 Red Hat Enterprise Linux Server (v. 7) curl 7.29.0-51.el7, nss-pem 1.0.3-5.el7, libcurl 7.29.0-51.el7
    fixed: vendor fix RHSA-2018:3157
  • Red Hat Enterprise Linux Server AUS (v. 7.4) curl 7.29.0-42.el7_4.2, libcurl 7.29.0-42.el7_4.2 Red Hat Enterprise Linux Server E4S (v. 7.4) curl 7.29.0-42.el7_4.2, libcurl 7.29.0-42.el7_4.2
    fixed: vendor fix RHSA-2020:0594
show 5 more
  • Red Hat Enterprise Linux Server EUS (v. 7.5) curl 7.29.0-46.el7_5.1, libcurl 7.29.0-46.el7_5.1
    fixed: vendor fix RHSA-2020:0544
  • Red Hat Enterprise Linux Server TUS (v. 7.4) curl 7.29.0-42.el7_4.2, libcurl 7.29.0-42.el7_4.2
    fixed: vendor fix RHSA-2020:0594
  • Red Hat Enterprise Linux Workstation (v. 7) curl 7.29.0-51.el7, nss-pem 1.0.3-5.el7, libcurl 7.29.0-51.el7
    fixed: vendor fix RHSA-2018:3157
  • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6) httpd24-curl 7.61.1-1.el6, httpd24-httpd 2.4.34-7.el6, httpd24-nghttp2 1.7.1-7.el6, httpd24-libcurl 7.61.1-1.el6, httpd24-mod_ssl 2.4.34-7.el6, httpd24-mod_ldap 2.4.34-7.el6, +5 more Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) httpd24-curl 7.61.1-1.el7, httpd24-httpd 2.4.34-7.el7, httpd24-mod_md 2.4.34-7.el7, httpd24-nghttp2 1.7.1-7.el7, httpd24-libcurl 7.61.1-1.el7, httpd24-mod_ssl 2.4.34-7.el7, +6 more Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.4) httpd24-curl 7.61.1-1.el7, httpd24-httpd 2.4.34-7.el7, httpd24-mod_md 2.4.34-7.el7, httpd24-nghttp2 1.7.1-7.el7, httpd24-libcurl 7.61.1-1.el7, httpd24-mod_ssl 2.4.34-7.el7, +6 more Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.5) httpd24-curl 7.61.1-1.el7, httpd24-httpd 2.4.34-7.el7, httpd24-mod_md 2.4.34-7.el7, httpd24-nghttp2 1.7.1-7.el7, httpd24-libcurl 7.61.1-1.el7, httpd24-mod_ssl 2.4.34-7.el7, +6 more Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.6) httpd24-curl 7.61.1-1.el7, httpd24-httpd 2.4.34-7.el7, httpd24-mod_md 2.4.34-7.el7, httpd24-nghttp2 1.7.1-7.el7, httpd24-libcurl 7.61.1-1.el7, httpd24-mod_ssl 2.4.34-7.el7, +6 more Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6) httpd24-curl 7.61.1-1.el6, httpd24-httpd 2.4.34-7.el6, httpd24-nghttp2 1.7.1-7.el6, httpd24-libcurl 7.61.1-1.el6, httpd24-mod_ssl 2.4.34-7.el6, httpd24-mod_ldap 2.4.34-7.el6, +5 more
    +1 more products
    Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) httpd24-curl 7.61.1-1.el7, httpd24-httpd 2.4.34-7.el7, httpd24-mod_md 2.4.34-7.el7, httpd24-nghttp2 1.7.1-7.el7, httpd24-libcurl 7.61.1-1.el7, httpd24-mod_ssl 2.4.34-7.el7, +6 more
    fixed: vendor fix RHSA-2018:3558
  • Red Hat Enterprise Linux 5 curl Red Hat Enterprise Linux 6 curl, libcurl Red Hat Enterprise Linux 8 curl, libcurl, libcurl-minimal
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

cisa ICSA-19-155-01 updated cvss 9.1

PHOENIX CONTACT PLCNext AXC F 2152

  • Phoenix Contact AXC F 2152 2404267 version 1.x, 1046568 (Starterkit) version 1.x
    affected: vendor fix, mitigation “Phoenix Contact recommends affected users update to firmware release 2019.0 LTS or later, update to PLCNext Engineer release 2019.0 LTS or later, and apply the following specific mitigations below:” phoenixcontact.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
6 mo ago

Exploit prediction

5.81% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
CNA 3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
NVD 3.0 9.1 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
NVD 2.0 6.4 AV:N/AC:L/Au:N/C:P/I:N/A:P

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.