cve-2018-14618
Vulnerability from cvelistv5
Published
2018-09-05 19:00
Modified
2024-08-05 09:29
Severity ?
7.5 (High) - CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Summary
curl before version 7.61.1 is vulnerable to a buffer overrun in the NTLM authentication code. The internal function Curl_ntlm_core_mk_nt_hash multiplies the length of the password by two (SUM) to figure out how large temporary storage area to allocate from the heap. The length value is then subsequently used to iterate over the password and generate output into the allocated storage buffer. On systems with a 32 bit size_t, the math to calculate SUM triggers an integer overflow when the password 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. (This bug is almost identical to CVE-2017-8816.)
References
secalert@redhat.comhttp://www.securitytracker.com/id/1041605Third Party Advisory, VDB Entry
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2018:3558Third Party Advisory
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2019:1880
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14618Issue Tracking
secalert@redhat.comhttps://cert-portal.siemens.com/productcert/pdf/ssa-436177.pdf
secalert@redhat.comhttps://curl.haxx.se/docs/CVE-2018-14618.htmlVendor Advisory
secalert@redhat.comhttps://psirt.global.sonicwall.com/vuln-detail/SNWLID-2018-0014Third Party Advisory
secalert@redhat.comhttps://security.gentoo.org/glsa/201903-03Third Party Advisory
secalert@redhat.comhttps://usn.ubuntu.com/3765-1/Third Party Advisory
secalert@redhat.comhttps://usn.ubuntu.com/3765-2/Third Party Advisory
secalert@redhat.comhttps://www.debian.org/security/2018/dsa-4286Third Party Advisory
Impacted products
[UNKNOWN]curl
Show details on NVD website

To clipboard 

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