CVE-2019-3823
curl: SMTP end-of-response out-of-bounds read
Severity Score
7.5
*CVSS v3
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
2
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
libcurl versions from 7.34.0 to before 7.64.0 are vulnerable to a heap out-of-bounds read in the code handling the end-of-response for SMTP. If the buffer passed to `smtp_endofresp()` isn't NUL terminated and contains no character ending the parsed number, and `len` is set to 5, then the `strtol()` call reads beyond the allocated buffer. The read contents will not be returned to the caller.
libcurl, desde la versión 7.34.0 hasta antes de la 7.64.0, es vulnerable a una lectura de memoria dinámica (heap) fuera de límites en el código que maneja el final de la respuesta para SMTP. Si el búfer que se pasa a "smtp_endofresp()" no termina en NUL, no contiene caracteres que terminen el número analizado y "len" se establece como 5, la llamada "strtol()" lee más allá del búfer asignado. Los contenidos de la lectura no se devolverán al llamante.
An out-of-bounds read flaw was found in the way curl handled certain SMTP responses. A remote attacker could use this flaw to crash curl.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
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
- 2019-01-03 CVE Reserved
- 2019-02-06 CVE Published
- 2024-08-04 CVE Updated
- 2024-08-04 First Exploit
- 2024-08-08 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-125: Out-of-bounds Read
CAPEC
References (14)
| URL | Tag | Source |
|---|---|---|
| http://www.securityfocus.com/bid/106950 | Third Party Advisory | |
| https://cert-portal.siemens.com/productcert/pdf/ssa-936080.pdf | X_refsource_confirm |
|
| https://lists.apache.org/thread.html/8338a0f605bdbb3a6098bb76f666a95fc2b2f53f37fa1ecc89f1146f%40%3Cdevnull.infra.apache.org%3E | Mailing List | |
| https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html | X_refsource_misc |
|
| URL | Date | SRC |
|---|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3823 | 2024-08-04 | |
| https://security.netapp.com/advisory/ntap-20190315-0001 | 2024-08-04 |
| URL | Date | SRC |
|---|---|---|
| https://curl.haxx.se/docs/CVE-2019-3823.html | 2023-11-07 | |
| https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html | 2023-11-07 |
| URL | Date | SRC |
|---|---|---|
| https://access.redhat.com/errata/RHSA-2019:3701 | 2023-11-07 | |
| https://security.gentoo.org/glsa/201903-03 | 2023-11-07 | |
| https://usn.ubuntu.com/3882-1 | 2023-11-07 | |
| https://www.debian.org/security/2019/dsa-4386 | 2023-11-07 | |
| https://access.redhat.com/security/cve/CVE-2019-3823 | 2019-11-05 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1670256 | 2019-11-05 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Haxx Search vendor "Haxx" | Libcurl Search vendor "Haxx" for product "Libcurl" | >= 7.34.0 < 7.64.0 Search vendor "Haxx" for product "Libcurl" and version " >= 7.34.0 < 7.64.0" | - |
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" | lts |
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" | 18.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "18.10" | - |
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
| ||||||
| Netapp Search vendor "Netapp" | Clustered Data Ontap Search vendor "Netapp" for product "Clustered Data Ontap" | * | - |
Affected
| ||||||
| Oracle Search vendor "Oracle" | Communications Operations Monitor Search vendor "Oracle" for product "Communications Operations Monitor" | 3.4 Search vendor "Oracle" for product "Communications Operations Monitor" and version "3.4" | - |
Affected
| ||||||
| Oracle Search vendor "Oracle" | Communications Operations Monitor Search vendor "Oracle" for product "Communications Operations Monitor" | 4.0 Search vendor "Oracle" for product "Communications Operations Monitor" and version "4.0" | - |
Affected
| ||||||
| Oracle Search vendor "Oracle" | Http Server Search vendor "Oracle" for product "Http Server" | 12.2.1.3.0 Search vendor "Oracle" for product "Http Server" and version "12.2.1.3.0" | - |
Affected
| ||||||
| Oracle Search vendor "Oracle" | Secure Global Desktop Search vendor "Oracle" for product "Secure Global Desktop" | 5.4 Search vendor "Oracle" for product "Secure Global Desktop" and version "5.4" | - |
Affected
| ||||||