// For flags

CVE-2010-0734

curl: zlib-compression causes curl to pass more than CURL_MAX_WRITE_SIZE bytes to write callback

Severity Score

9.1
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

content_encoding.c in libcurl 7.10.5 through 7.19.7, when zlib is enabled, does not properly restrict the amount of callback data sent to an application that requests automatic decompression, which might allow remote attackers to cause a denial of service (application crash) or have unspecified other impact by sending crafted compressed data to an application that relies on the intended data-length limit.

content_encoding.c en libcurl v7.10.5 hasta v7.19.7, cuando zlib está habilitado, no restringe adecuadamente la cantidad de datos de llamadas devueltas, enviadas a una aplicación que descomprime automaticamente las peticiones, lo que podría permitir a un atacante remoto provocar una denegación de servicio (caída de aplicación) o tener o tro impacto sin especificar mediante el envío de datos comprimidos manipulados a una aplicación que se basa en el límite destinado data-length.

Richard Silverman discovered that when doing GSSAPI authentication, libcurl unconditionally performs credential delegation, handing the server a copy of the client's security credential. Wesley Miaw discovered that when zlib is enabled, libcurl does not properly restrict the amount of callback data sent to an application that requests automatic decompression. This might allow an attacker to cause a denial of service via an application crash or possibly execute arbitrary code with the privilege of the application. This issue only affected Ubuntu 8.04 LTS and Ubuntu 10.04 LTS. Various other issues were also addressed.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
Attack Vector
Network
Attack Complexity
High
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2010-02-26 CVE Reserved
  • 2010-03-19 CVE Published
  • 2024-08-07 CVE Updated
  • 2025-05-04 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-264: Permissions, Privileges, and Access Controls
CAPEC
References (36)
URL Date SRC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Curl
Search vendor "Curl"
Libcurl
Search vendor "Curl" for product "Libcurl"
7.10.5
Search vendor "Curl" for product "Libcurl" and version "7.10.5"
-
Affected
Curl
Search vendor "Curl"
Libcurl
Search vendor "Curl" for product "Libcurl"
7.10.6
Search vendor "Curl" for product "Libcurl" and version "7.10.6"
-
Affected
Curl
Search vendor "Curl"
Libcurl
Search vendor "Curl" for product "Libcurl"
7.10.7
Search vendor "Curl" for product "Libcurl" and version "7.10.7"
-
Affected
Curl
Search vendor "Curl"
Libcurl
Search vendor "Curl" for product "Libcurl"
7.10.8
Search vendor "Curl" for product "Libcurl" and version "7.10.8"
-
Affected
Curl
Search vendor "Curl"
Libcurl
Search vendor "Curl" for product "Libcurl"
7.11.0
Search vendor "Curl" for product "Libcurl" and version "7.11.0"
-
Affected
Curl
Search vendor "Curl"
Libcurl
Search vendor "Curl" for product "Libcurl"
7.11.1
Search vendor "Curl" for product "Libcurl" and version "7.11.1"
-
Affected
Curl
Search vendor "Curl"
Libcurl
Search vendor "Curl" for product "Libcurl"
7.11.2
Search vendor "Curl" for product "Libcurl" and version "7.11.2"
-
Affected
Curl
Search vendor "Curl"
Libcurl
Search vendor "Curl" for product "Libcurl"
7.12
Search vendor "Curl" for product "Libcurl" and version "7.12"
-
Affected
Curl
Search vendor "Curl"
Libcurl
Search vendor "Curl" for product "Libcurl"
7.12.0
Search vendor "Curl" for product "Libcurl" and version "7.12.0"
-
Affected
Curl
Search vendor "Curl"
Libcurl
Search vendor "Curl" for product "Libcurl"
7.12.1
Search vendor "Curl" for product "Libcurl" and version "7.12.1"
-
Affected
Curl
Search vendor "Curl"
Libcurl
Search vendor "Curl" for product "Libcurl"
7.12.2
Search vendor "Curl" for product "Libcurl" and version "7.12.2"
-
Affected
Curl
Search vendor "Curl"
Libcurl
Search vendor "Curl" for product "Libcurl"
7.12.3
Search vendor "Curl" for product "Libcurl" and version "7.12.3"
-
Affected
Curl
Search vendor "Curl"
Libcurl
Search vendor "Curl" for product "Libcurl"
7.13
Search vendor "Curl" for product "Libcurl" and version "7.13"
-
Affected
Curl
Search vendor "Curl"
Libcurl
Search vendor "Curl" for product "Libcurl"
7.13.1
Search vendor "Curl" for product "Libcurl" and version "7.13.1"
-
Affected
Curl
Search vendor "Curl"
Libcurl
Search vendor "Curl" for product "Libcurl"
7.13.2
Search vendor "Curl" for product "Libcurl" and version "7.13.2"
-
Affected
Curl
Search vendor "Curl"
Libcurl
Search vendor "Curl" for product "Libcurl"
7.14
Search vendor "Curl" for product "Libcurl" and version "7.14"
-
Affected
Curl
Search vendor "Curl"
Libcurl
Search vendor "Curl" for product "Libcurl"
7.14.1
Search vendor "Curl" for product "Libcurl" and version "7.14.1"
-
Affected
Curl
Search vendor "Curl"
Libcurl
Search vendor "Curl" for product "Libcurl"
7.15
Search vendor "Curl" for product "Libcurl" and version "7.15"
-
Affected
Curl
Search vendor "Curl"
Libcurl
Search vendor "Curl" for product "Libcurl"
7.15.1
Search vendor "Curl" for product "Libcurl" and version "7.15.1"
-
Affected
Curl
Search vendor "Curl"
Libcurl
Search vendor "Curl" for product "Libcurl"
7.15.2
Search vendor "Curl" for product "Libcurl" and version "7.15.2"
-
Affected
Curl
Search vendor "Curl"
Libcurl
Search vendor "Curl" for product "Libcurl"
7.15.3
Search vendor "Curl" for product "Libcurl" and version "7.15.3"
-
Affected
Curl
Search vendor "Curl"
Libcurl
Search vendor "Curl" for product "Libcurl"
7.16.3
Search vendor "Curl" for product "Libcurl" and version "7.16.3"
-
Affected
Curl
Search vendor "Curl"
Libcurl
Search vendor "Curl" for product "Libcurl"
7.17.0
Search vendor "Curl" for product "Libcurl" and version "7.17.0"
-
Affected
Curl
Search vendor "Curl"
Libcurl
Search vendor "Curl" for product "Libcurl"
7.17.1
Search vendor "Curl" for product "Libcurl" and version "7.17.1"
-
Affected
Curl
Search vendor "Curl"
Libcurl
Search vendor "Curl" for product "Libcurl"
7.18.0
Search vendor "Curl" for product "Libcurl" and version "7.18.0"
-
Affected
Curl
Search vendor "Curl"
Libcurl
Search vendor "Curl" for product "Libcurl"
7.18.1
Search vendor "Curl" for product "Libcurl" and version "7.18.1"
-
Affected
Curl
Search vendor "Curl"
Libcurl
Search vendor "Curl" for product "Libcurl"
7.18.2
Search vendor "Curl" for product "Libcurl" and version "7.18.2"
-
Affected
Curl
Search vendor "Curl"
Libcurl
Search vendor "Curl" for product "Libcurl"
7.19.0
Search vendor "Curl" for product "Libcurl" and version "7.19.0"
-
Affected
Curl
Search vendor "Curl"
Libcurl
Search vendor "Curl" for product "Libcurl"
7.19.1
Search vendor "Curl" for product "Libcurl" and version "7.19.1"
-
Affected
Curl
Search vendor "Curl"
Libcurl
Search vendor "Curl" for product "Libcurl"
7.19.2
Search vendor "Curl" for product "Libcurl" and version "7.19.2"
-
Affected
Curl
Search vendor "Curl"
Libcurl
Search vendor "Curl" for product "Libcurl"
7.19.3
Search vendor "Curl" for product "Libcurl" and version "7.19.3"
-
Affected
Curl
Search vendor "Curl"
Libcurl
Search vendor "Curl" for product "Libcurl"
7.19.4
Search vendor "Curl" for product "Libcurl" and version "7.19.4"
-
Affected
Curl
Search vendor "Curl"
Libcurl
Search vendor "Curl" for product "Libcurl"
7.19.5
Search vendor "Curl" for product "Libcurl" and version "7.19.5"
-
Affected
Curl
Search vendor "Curl"
Libcurl
Search vendor "Curl" for product "Libcurl"
7.19.6
Search vendor "Curl" for product "Libcurl" and version "7.19.6"
-
Affected
Curl
Search vendor "Curl"
Libcurl
Search vendor "Curl" for product "Libcurl"
7.19.7
Search vendor "Curl" for product "Libcurl" and version "7.19.7"
-
Affected