Updated cups packages that fix multiple security issues are now available for Red Hat Enterprise Linux 5.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

[Updated 12th January 2010] The packages list in this erratum has been updated to include missing i386 packages for Red Hat Enterprise Linux Desktop and RHEL Desktop Workstation.

The Common UNIX Printing System (CUPS) provides a portable printing layer for UNIX operating systems.

A use-after-free flaw was found in the way CUPS handled references in its file descriptors-handling interface. A remote attacker could, in a specially crafted way, query for the list of current print jobs for a specific printer, leading to a denial of service (cupsd crash).
(CVE-2009-3553)

Several cross-site scripting (XSS) flaws were found in the way the CUPS web server interface processed HTML form content. If a remote attacker could trick a local user who is logged into the CUPS web interface into visiting a specially crafted HTML page, the attacker could retrieve and potentially modify confidential CUPS administration data. (CVE-2009-2820)

Red Hat would like to thank Aaron Sigel of Apple Product Security for responsibly reporting the CVE-2009-2820 issue.

Users of cups are advised to upgrade to these updated packages, which contain backported patches to correct these issues. After installing the update, the cupsd daemon will be restarted automatically.

CVE-2010-0302 cups Incomplete fix for CVE-2009-3553

It was discovered that the cups 1.3.7-11.el5_4.4 security update did not fully correct the use-after-free flaw in the way CUPS handled references in its file descriptors-handling interface. A remote attacker could send specially crafted queries to the CUPS server, causing it to crash. (CVE-2010-0302)

After installing the update, the cupsd daemon will be restarted automatically.

lppasswd when running setuid or setgid still honors environment variables that specify the location of message files. Local attackers could exploit that to gather information by using crafted format strings (CVE-2010-0393).

The previous fix for a use-after-free vulnerability (CVE-2009-3553) was incomplete (CVE-2010-0302).

According to its banner, the version of CUPS installed on the remote host is earlier than 1.4.4. Such versions are affected by several vulnerabilities :

  - The patch for STR #3200 / CVE-2009-3553 was not     complete. A remote client can cause a denial of service     by causing the CUPS server to reference an already     freed resource. (STR #3490) (CVE-2010-0302)

  - The CUPS daemon may be vulnerable to certain cross-site     request forgery (CSRF) attacks, e.g., malicious IFRAME     attacks. (STR #3498) (CVE-2010-0540)

  - An unprivileged process may be able to cause the CUPS     server to overwrite arbitrary files as the root user.
    (STR #3510) (CVE-2010-2431)

  - The CUPS daemon is vulnerable to a heap corruption     attack as the 'textops' filter does not verify the     results of memory allocations. It is possible this     may lead to arbitrary code execution. (STR #3516)     (CVE-2010-0542)

  - The CUPS daemon is vulnerable to a denial of service     attack if compiled without HAVE_GSSAPI. (STR #3518)     (CVE-2010-2432)

  - The CUPS daemon is vulnerable to an information     disclosure attack as an attacker can view portions of     uninitialized memory by a specially crafted URL.
    (STR #3577) (CVE-2010-1748)

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
67076	CentOS 5 : cups (CESA-2009:1595)	Nessus	CentOS Local Security Checks	2013/6/29	2021/1/4	medium
60743	Scientific Linux Security Update : cups on SL5.x i386/x86_64	Nessus	Scientific Linux Local Security Checks	2012/8/1	2021/1/14	medium
45096	openSUSE Security Update : cups (cups-2102)	Nessus	SuSE Local Security Checks	2010/3/19	2021/1/14	medium
45099	openSUSE Security Update : cups (cups-2102)	Nessus	SuSE Local Security Checks	2010/3/19	2021/1/14	medium
47683	CUPS < 1.4.4 Multiple Vulnerabilities	Nessus	Misc.	2010/7/8	2018/7/6	high

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