CVE-2019-17455
Severity Score
9.8
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
2
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
Libntlm through 1.5 relies on a fixed buffer size for tSmbNtlmAuthRequest, tSmbNtlmAuthChallenge, and tSmbNtlmAuthResponse read and write operations, as demonstrated by a stack-based buffer over-read in buildSmbNtlmAuthRequest in smbutil.c for a crafted NTLM request.
Libntlm versiones hasta 1.5, se basa en un tamaño de búfer fijo para operaciones de lectura y escritura de las funciones tSmbNtlmAuthRequest, tSmbNtlmAuthChallenge y tSmbNtlmAuthResponse, como es demostrado por una lectura excesiva de búfer en la región heap de la memoria en la función buildSmbNtlmAuthRequest en el archivo smbutil.c para una petición NTLM especialmente diseñada.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2019-10-10 CVE Reserved
- 2019-10-10 CVE Published
- 2024-02-03 EPSS Updated
- 2024-08-05 CVE Updated
- 2024-08-05 First Exploit
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-125: Out-of-bounds Read
CAPEC
References (10)
| URL | Tag | Source |
|---|---|---|
| https://lists.debian.org/debian-lts-announce/2020/05/msg00010.html | Mailing List |
|
| https://lists.debian.org/debian-lts-announce/2021/11/msg00026.html | Mailing List |
|
| https://people.canonical.com/~ubuntu-security/cve/2019/CVE-2019-17455.html | Third Party Advisory | |
| https://security-tracker.debian.org/tracker/CVE-2019-17455 | Third Party Advisory |
| URL | Date | SRC |
|---|---|---|
| https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=942145 | 2024-08-05 | |
| https://gitlab.com/jas/libntlm/issues/2 | 2024-08-05 |
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Nongnu Search vendor "Nongnu" | Libntlm Search vendor "Nongnu" for product "Libntlm" | <= 1.5 Search vendor "Nongnu" for product "Libntlm" and version " <= 1.5" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0" | - |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 14.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04" | esm |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04" | lts |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 18.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "18.04" | lts |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 20.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "20.04" | lts |
Affected
| ||||||
| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 32 Search vendor "Fedoraproject" for product "Fedora" and version "32" | - |
Affected
| ||||||
| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 33 Search vendor "Fedoraproject" for product "Fedora" and version "33" | - |
Affected
| ||||||
| Opensuse Search vendor "Opensuse" | Backports Sle Search vendor "Opensuse" for product "Backports Sle" | 15.0 Search vendor "Opensuse" for product "Backports Sle" and version "15.0" | sp1 |
Affected
| ||||||
| Opensuse Search vendor "Opensuse" | Leap Search vendor "Opensuse" for product "Leap" | 15.1 Search vendor "Opensuse" for product "Leap" and version "15.1" | - |
Affected
| ||||||