Null pointer dereference in cURL - CVE-2018-1000121

Vulnerability identifier: #VU11105

CSH Severity: Low

CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

CVE-ID: CVE-2018-1000121

CWE-ID: CWE-476

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists due to NULL pointer dereference in ldap_get_attribute_ber(). A remote attacker can return a specially crafted redirect to an LDAP URL, trigger NULL pointer dereference and cause the service to crash.//

cURL
Debian Linux
Arch Linux
Gentoo Linux
Amazon Linux AMI
Red Hat Enterprise Linux for Scientific Computing
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux EUS Compute Node
Red Hat Enterprise Linux for Power
Slackware Linux
Fedora
curl (Alpine package)
curl
Dynamic System Analysis (DSA) Preboot
Integrated Management Module II (IMM2) for BladeCenter Systems
System x Integrated Management Module (IMM2)
Flex System Integrated Management Module (IMM2)
Flex System Chassis Management Module (CMM)
Dell EMC Unisphere Central

Update to version 7.59.0.

curl (Alpine package) - update to 7.59.0-r0
Dynamic System Analysis (DSA) Preboot - update to dsyte2z-9.65
System x Integrated Management Module (IMM2) - update to 1AOO86D-7.00
Flex System Integrated Management Module (IMM2) - update to 1AOO86D-7.00
Integrated Management Module II (IMM2) for BladeCenter Systems - update to 1AOO86D-7.00-bc
Flex System Chassis Management Module (CMM) - update to 2pet16d-2.5.13d
Dell EMC Unisphere Central - update to 4.0.8.23220
curl - addressed in versions 7.53.1-16.fc26, 7.55.1-10.fc27, 7.59.0-1.fc28, 7.59.0-2.fc28

• https://curl.haxx.se/docs/adv_2018-97a2.html

• Multiple vulnerabilities in cURL
• Debian update for curl
• Slackware Linux update for curl
• Arch Linux update for curl
• Arch Linux update for lib32-curl
• Arch Linux update for libcurl-compat
• Arch Linux update for lib32-libcurl-compat
• Arch Linux update for libcurl-gnutls
• Arch Linux update for lib32-libcurl-gnutls
• Gentoo update for cURL
• Amazon Linux AMI update for curl
• Red Hat update for curl and nss-pem
• Red Hat update for curl
• Red Hat Enterprise Linux Server 7.4 update for curl
• Null pointer dereference in curl (Alpine package)
• Multiple vulnerabilities in Dell EMC Unisphere Central
• Multiple vulnerabilities in IBM Integrated Management Module II (IMM2)
• Multiple vulnerabilities in IBM Dynamic System Analysis (DSA) Preboot
• Multiple vulnerabilities in IBM Flex System Chassis Management Module (CMM)
• Fedora 28 update for curl
• Fedora 28 update for curl
• Fedora 27 update for curl
• Fedora 26 update for curl