Home CVE Database CVE-2018-16839

CVE-2018-16839

Description

libcurl contains a buffer overrun in the SASL authentication code. The internal function Curl_auth_create_plain_message fails to correctly verify that the passed in lengths for name and password aren\'t too long, then calculates a buffer size to allocate. On systems with a 32 bit size_t, the math to calculate the buffer size triggers an integer overflow when the user name length exceeds 2GB (2^31 bytes). This integer overflow usually causes a very small buffer to actually get allocated instead of the intended very huge one, making the use of that buffer end up in a heap buffer overflow.

Priority: HIGH
CVSS v3: 9.8
Publish Date: Oct 31, 2018
Related ID: --
CVSS v2: CRITICAL
Modified Date: Oct 31, 2018

Find out more about CVE-2018-16839 from the MITRE-CVE dictionary and NIST NVD


Products Affected

Login may be required to access defects or downloads.

Product Name Status Defect Fixed Downloads
Linux
Wind River Linux LTS 17 Fixed LIN10-4881
10.17.41.13 Wind River Linux LTS 10.17.41.13
Wind River Linux LTS 10.17.41.14
Wind River Linux LTS 10.17.41.15
Wind River Linux LTS 10.17.41.16
Wind River Linux LTS 10.17.41.17
Wind River Linux LTS 10.17.41.18
Wind River Linux LTS 10.17.41.20
Wind River Linux LTS 10.17.41.21
Wind River Linux LTS 10.17.41.22
Wind River Linux LTS 10.17.41.23
Wind River Linux LTS 10.17.41.24
Wind River Linux 8 Fixed LIN8-9949
8.0.0.28 --
Wind River Linux 9 Fixed LIN9-7644
9.0.0.19 --
Wind River Linux 7 Fixed -- 7.0.0.30 --
Wind River Linux LTS 21 Vulnerable -- -- --
Wind River Linux LTS 18 Fixed LIN1018-2812
10.18.44.3 --
Wind River Linux LTS 19 Not Vulnerable -- -- --
Wind River Linux CD release Vulnerable -- -- --
VxWorks
VxWorks 7 Fixed -- SR0630 --
VxWorks 6.9 Not Vulnerable -- -- --

Related Products

Product Name Status Defect Fixed Downloads

Comments

curl

Requires LTSS - customers must have active LTSS (Long Term Security Shield) Support to receive up-to-date information about vulnerabilities that may affect legacy software. Please contact your Wind River account team or see https://docs.windriver.com/bundle/Support_and_Maintenance_Supplemental_Terms_and_Conditions and https://support2.windriver.com/index.php?page=plc for more information.
Live chat
Online