What’s Vulnerable › Vulnerabilities

CVE-2018-1000121

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 9.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-03-14 · updated 2026-06-17
• Weakness: CWE-476

Description

A NULL pointer dereference exists in curl 7.21.0 to and including curl 7.58.0 in the LDAP code that allows an attacker to cause a denial of service

Affected products

• Canonical Ubuntu Linux: 12.04, 14.04, 16.04, 17.10
• Debian Linux: 7.0, 8.0, 9.0
• curl: from 7.21.0 through 7.58.0
• Oracle Corporation Communications WebRTC Session Controller: before 7.2 — fixed in 7.2
• Oracle Corporation Enterprise Manager Ops Center: 12.2.2, 12.3.3
• Oracle Corporation PeopleSoft Enterprise PT PeopleTools: 8.55, 8.56, 8.57
• RedHat Enterprise Linux Desktop: 7.0
• RedHat Enterprise Linux Server: 7.0
• RedHat Enterprise Linux Workstation: 7.0

How to fix

Upgrade to a fixed version: Oracle Corporation Communications WebRTC Session Controller 7.2. Check the vendor advisory for mitigations.

References

• http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html
• http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
• http://www.securityfocus.com/bid/103415
• http://www.securitytracker.com/id/1040529
• https://access.redhat.com/errata/RHBA-2019:0327
• https://access.redhat.com/errata/RHSA-2018:3157
• https://access.redhat.com/errata/RHSA-2018:3558
• https://access.redhat.com/errata/RHSA-2020:0544
• https://access.redhat.com/errata/RHSA-2020:0594
• https://curl.haxx.se/docs/adv_2018-97a2.html
• https://lists.debian.org/debian-lts-announce/2018/03/msg00012.html
• https://usn.ubuntu.com/3598-1/

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