SB2011041104 - Multiple vulnerabilities in feedparser

Description

This security bulletin contains information about 2 vulnerabilities.

1) Cross-site scripting (CVE-ID: CVE-2011-1157)

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

Vulnerability allows a remote attacker to perform Cross-site scripting attacks.

An input validation error exists in feedparser.py in Universal Feed Parser (aka feedparser or python-feedparser) 5.x before 5.0.1. A remote authenticated attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in victim's browser in security context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

2) Cross-site scripting (CVE-ID: CVE-2011-1158)

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

Vulnerability allows a remote attacker to perform XSS attacks.

The vulnerability is caused by an input validation error in feedparser.py in Universal Feed Parser (aka feedparser or python-feedparser) 5.x before 5.0.1. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in victim's browser in security context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Remediation

Install update from vendor's website.

References

• http://lists.opensuse.org/opensuse-updates/2011-04/msg00026.html
• http://openwall.com/lists/oss-security/2011/03/14/18
• http://openwall.com/lists/oss-security/2011/03/15/11
• http://secunia.com/advisories/43730
• http://secunia.com/advisories/44074
• http://support.novell.com/security/cve/CVE-2011-1157.html
• http://www.mandriva.com/security/advisories?name=MDVSA-2011:082
• http://www.securityfocus.com/bid/46867
• https://bugzilla.novell.com/show_bug.cgi?id=680074
• https://bugzilla.redhat.com/show_bug.cgi?id=684877
• https://code.google.com/p/feedparser/issues/detail?id=254
• http://support.novell.com/security/cve/CVE-2011-1158.html
• https://code.google.com/p/feedparser/issues/detail?id=255