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Gentoo: GLSA 201203-02 Normal: cURL Remote Code Exec Advisory

gentoo
Calendar Grey March 6, 2012
Dist Gentoo Esm H88
Uncover essential cURL security weaknesses impacting Gentoo clients along with remediation strategies outlined in advisory GLSA 201203-02.
Multiple vulnerabilities have been found in cURL, the worst of which might allow remote execution of arbitrary code.

Summary

Multiple vulnerabilities have been found in cURL: * When zlib is enabled, the amount of data sent to an application for automatic decompression is not restricted (CVE-2010-0734). * When performing GSSAPI authentication, credential delegation is always used (CVE-2011-2192). * When SSL is enabled, cURL improperly disables the OpenSSL workaround to mitigate an information disclosure vulnerability in the SSL and TLS protocols (CVE-2011-3389). * libcurl does not properly verify file paths for escape control characters in IMAP, POP3 or SMTP URLs (CVE-2012-0036).

Topics%20covered

Topics Covered

security advisory gentoo remote execution advisory multiple issues normal severity cURL

Resolution

All cURL users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-misc/curl-7.24.0"

References

[ 1 ] CVE-2010-0734 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-0734 [ 2 ] CVE-2011-2192 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-2192 [ 3 ] CVE-2011-3389 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-3389 [ 4 ] CVE-2012-0036 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-0036

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/201203-02
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Concerns

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.

Severity: Normal
Title: cURL: Multiple vulnerabilities
Date: March 06, 2012
Bugs: #308645, #373235, #400799
ID: 201203-02

Topics%20covered

Topics Covered

security advisory gentoo remote execution advisory multiple issues normal severity cURL

Synopsis

Multiple vulnerabilities have been found in cURL, the worst of which might allow remote execution of arbitrary code.

Background

cURL is a command line tool for transferring files with URL syntax, supporting numerous protocols.

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Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-misc/curl < 7.24.0 >= 7.24.0

Impact

===== A remote attacker could entice a user or automated process to open a specially crafted file or URL using cURL, possibly resulting in the remote execution of arbitrary code, a Denial of Service condition, disclosure of sensitive information, or unwanted actions performed via the IMAP, POP3 or SMTP protocols. Furthermore, remote servers may be able to impersonate clients via GSSAPI requests.

Workaround

There is no known workaround at this time.

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