CVE-2015-0292
openssl: integer underflow leading to buffer overflow in base64 decoding
Severity Score
7.5
*CVSS v2
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
1
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
Integer underflow in the EVP_DecodeUpdate function in crypto/evp/encode.c in the base64-decoding implementation in OpenSSL before 0.9.8za, 1.0.0 before 1.0.0m, and 1.0.1 before 1.0.1h allows remote attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact via crafted base64 data that triggers a buffer overflow.
Subdesbordamiento de enteros en la función EVP_DecodeUpdate en crypto/evp/encode.c en la implementación base64-decoding en OpenSSL anterior a 0.9.8za, 1.0.0 anterior a 1.0.0m, y 1.0.1 anterior a 1.0.1h permite a atacantes remotos causar una denegación de servicio (corrupción de memoria) o posiblemente tener otro impacto no especificado a través de datos base64 manipulados que provocan un desbordamiento de buffer.
An integer underflow flaw, leading to a buffer overflow, was found in the way OpenSSL decoded malformed Base64-encoded inputs. An attacker able to make an application using OpenSSL decode a specially crafted Base64-encoded input (such as a PEM file) could use this flaw to cause the application to crash. Note: this flaw is not exploitable via the TLS/SSL protocol because the data being transferred is not Base64-encoded.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Authentication
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
- 2014-11-18 CVE Reserved
- 2015-03-19 CVE Published
- 2024-08-06 CVE Updated
- 2024-08-06 First Exploit
- 2024-10-29 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
- CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CAPEC
References (35)
| URL | Date | SRC |
|---|---|---|
| https://rt.openssl.org/Ticket/Display.html?id=2608&user=guest&pass=guest | 2024-08-06 |
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Openssl Search vendor "Openssl" | Openssl Search vendor "Openssl" for product "Openssl" | <= 0.9.8z Search vendor "Openssl" for product "Openssl" and version " <= 0.9.8z" | - |
Affected
| ||||||
| Openssl Search vendor "Openssl" | Openssl Search vendor "Openssl" for product "Openssl" | 1.0.0 Search vendor "Openssl" for product "Openssl" and version "1.0.0" | - |
Affected
| ||||||
| Openssl Search vendor "Openssl" | Openssl Search vendor "Openssl" for product "Openssl" | 1.0.0a Search vendor "Openssl" for product "Openssl" and version "1.0.0a" | - |
Affected
| ||||||
| Openssl Search vendor "Openssl" | Openssl Search vendor "Openssl" for product "Openssl" | 1.0.0b Search vendor "Openssl" for product "Openssl" and version "1.0.0b" | - |
Affected
| ||||||
| Openssl Search vendor "Openssl" | Openssl Search vendor "Openssl" for product "Openssl" | 1.0.0c Search vendor "Openssl" for product "Openssl" and version "1.0.0c" | - |
Affected
| ||||||
| Openssl Search vendor "Openssl" | Openssl Search vendor "Openssl" for product "Openssl" | 1.0.0d Search vendor "Openssl" for product "Openssl" and version "1.0.0d" | - |
Affected
| ||||||
| Openssl Search vendor "Openssl" | Openssl Search vendor "Openssl" for product "Openssl" | 1.0.0e Search vendor "Openssl" for product "Openssl" and version "1.0.0e" | - |
Affected
| ||||||
| Openssl Search vendor "Openssl" | Openssl Search vendor "Openssl" for product "Openssl" | 1.0.0f Search vendor "Openssl" for product "Openssl" and version "1.0.0f" | - |
Affected
| ||||||
| Openssl Search vendor "Openssl" | Openssl Search vendor "Openssl" for product "Openssl" | 1.0.0g Search vendor "Openssl" for product "Openssl" and version "1.0.0g" | - |
Affected
| ||||||
| Openssl Search vendor "Openssl" | Openssl Search vendor "Openssl" for product "Openssl" | 1.0.0h Search vendor "Openssl" for product "Openssl" and version "1.0.0h" | - |
Affected
| ||||||
| Openssl Search vendor "Openssl" | Openssl Search vendor "Openssl" for product "Openssl" | 1.0.0i Search vendor "Openssl" for product "Openssl" and version "1.0.0i" | - |
Affected
| ||||||
| Openssl Search vendor "Openssl" | Openssl Search vendor "Openssl" for product "Openssl" | 1.0.0j Search vendor "Openssl" for product "Openssl" and version "1.0.0j" | - |
Affected
| ||||||
| Openssl Search vendor "Openssl" | Openssl Search vendor "Openssl" for product "Openssl" | 1.0.0k Search vendor "Openssl" for product "Openssl" and version "1.0.0k" | - |
Affected
| ||||||
| Openssl Search vendor "Openssl" | Openssl Search vendor "Openssl" for product "Openssl" | 1.0.0l Search vendor "Openssl" for product "Openssl" and version "1.0.0l" | - |
Affected
| ||||||
| Openssl Search vendor "Openssl" | Openssl Search vendor "Openssl" for product "Openssl" | 1.0.1 Search vendor "Openssl" for product "Openssl" and version "1.0.1" | - |
Affected
| ||||||
| Openssl Search vendor "Openssl" | Openssl Search vendor "Openssl" for product "Openssl" | 1.0.1a Search vendor "Openssl" for product "Openssl" and version "1.0.1a" | - |
Affected
| ||||||
| Openssl Search vendor "Openssl" | Openssl Search vendor "Openssl" for product "Openssl" | 1.0.1b Search vendor "Openssl" for product "Openssl" and version "1.0.1b" | - |
Affected
| ||||||
| Openssl Search vendor "Openssl" | Openssl Search vendor "Openssl" for product "Openssl" | 1.0.1c Search vendor "Openssl" for product "Openssl" and version "1.0.1c" | - |
Affected
| ||||||
| Openssl Search vendor "Openssl" | Openssl Search vendor "Openssl" for product "Openssl" | 1.0.1d Search vendor "Openssl" for product "Openssl" and version "1.0.1d" | - |
Affected
| ||||||
| Openssl Search vendor "Openssl" | Openssl Search vendor "Openssl" for product "Openssl" | 1.0.1e Search vendor "Openssl" for product "Openssl" and version "1.0.1e" | - |
Affected
| ||||||
| Openssl Search vendor "Openssl" | Openssl Search vendor "Openssl" for product "Openssl" | 1.0.1f Search vendor "Openssl" for product "Openssl" and version "1.0.1f" | - |
Affected
| ||||||
| Openssl Search vendor "Openssl" | Openssl Search vendor "Openssl" for product "Openssl" | 1.0.1g Search vendor "Openssl" for product "Openssl" and version "1.0.1g" | - |
Affected
| ||||||