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

*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	Tag	Source
http://secunia.com/advisories/38843	Third Party Advisory
http://secunia.com/advisories/38981	Third Party Advisory
http://secunia.com/advisories/39087	Third Party Advisory
http://secunia.com/advisories/39734	Third Party Advisory
http://secunia.com/advisories/40220	Third Party Advisory
http://secunia.com/advisories/45047	Third Party Advisory
http://secunia.com/advisories/48256	Third Party Advisory
http://support.apple.com/kb/HT4188	X_refsource_confirm
http://support.avaya.com/css/P8/documents/100081819	X_refsource_confirm
http://wiki.rpath.com/Advisories:rPSA-2010-0072	X_refsource_confirm
http://www.securityfocus.com/archive/1/514490/100/0/threaded	Mailing List
http://www.securityfocus.com/archive/1/516397/100/0/threaded	Mailing List
http://www.vmware.com/security/advisories/VMSA-2011-0003.html	X_refsource_confirm
http://www.vupen.com/english/advisories/2010/0571	Vdb Entry
http://www.vupen.com/english/advisories/2010/0602	Vdb Entry
http://www.vupen.com/english/advisories/2010/0660	Vdb Entry
http://www.vupen.com/english/advisories/2010/0725	Vdb Entry
http://www.vupen.com/english/advisories/2010/1481	Vdb Entry
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10760	Signature
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6756	Signature

URL	Date	SRC

URL	Date	SRC
http://curl.haxx.se/libcurl-contentencoding.patch	2018-10-10
http://www.openwall.com/lists/oss-security/2010/02/09/5	2018-10-10
http://www.openwall.com/lists/oss-security/2010/03/09/1	2018-10-10
http://www.openwall.com/lists/oss-security/2010/03/16/11	2018-10-10

URL	Date	SRC
http://curl.haxx.se/docs/adv_20100209.html	2018-10-10
http://curl.haxx.se/docs/security.html#20100209	2018-10-10
http://lists.apple.com/archives/security-announce/2010//Jun/msg00001.html	2018-10-10
http://lists.fedoraproject.org/pipermail/package-announce/2010-March/036744.html	2018-10-10
http://lists.fedoraproject.org/pipermail/package-announce/2010-March/037143.html	2018-10-10
http://security.gentoo.org/glsa/glsa-201203-02.xml	2018-10-10
http://www.debian.org/security/2010/dsa-2023	2018-10-10
http://www.mandriva.com/security/advisories?name=MDVSA-2010:062	2018-10-10
http://www.redhat.com/support/errata/RHSA-2010-0329.html	2018-10-10
http://www.ubuntu.com/usn/USN-1158-1	2018-10-10
https://bugzilla.redhat.com/show_bug.cgi?id=563220	2010-03-30
https://access.redhat.com/security/cve/CVE-2010-0734	2010-03-30

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