Specially crafted print jobs could trigger buffer overflows in the 'imagetops', 'texttops' and 'hpgltops' filters. Attackers could potentially exploit that to execute arbitrary code on the cups server.
(CVE-2008-3639 / CVE-2008-3640 / CVE-2008-3641)

A buffer overflow in the SGI image format decoding routines used by the CUPS image converting filter imagetops was discovered. An attacker could create malicious SGI image files that could possibly execute arbitrary code if the file was printed (CVE-2008-3639).

An integer overflow flaw leading to a heap buffer overflow was found in the Text-to-PostScript texttops filter. An attacker could create a malicious text file that could possibly execute arbitrary code if the file was printed (CVE-2008-3640).

Finally, an insufficient buffer bounds checking flaw was found in the HP-GL/2-to-PostScript hpgltops filter. An attacker could create a malicious HP-GL/2 file that could possibly execute arbitrary code if the file was printed (CVE-2008-3641).

The updated packages have been patched to prevent this issue; for Mandriva Linux 2009.0 the latest CUPS version (1.3.9) is provided that corrects these issues and also provides other bug fixes.

It was discovered that the SGI image filter in CUPS did not perform proper bounds checking. If a user or automated system were tricked into opening a crafted SGI image, an attacker could cause a denial of service. (CVE-2008-3639)

It was discovered that the texttops filter in CUPS did not properly validate page metrics. If a user or automated system were tricked into opening a crafted text file, an attacker could cause a denial of service. (CVE-2008-3640)

It was discovered that the HP-GL filter in CUPS did not properly check for invalid pen parameters. If a user or automated system were tricked into opening a crafted HP-GL or HP-GL/2 file, a remote attacker could cause a denial of service or execute arbitrary code with user privileges. In Ubuntu 7.10 and 8.04 LTS, attackers would be isolated by the AppArmor CUPS profile. (CVE-2008-3641)

NOTE: The previous update for CUPS on Ubuntu 6.06 LTS did not have the the fix for CVE-2008-1722 applied. This update includes fixes for the problem. We apologize for the inconvenience.

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Oracle Linux 5 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2008-0937 advisory.

    - Applied patch to fix CVE-2008-3639 (STR #2918, bug #464721).
    - Applied patch to fix CVE-2008-3640 (STR #2919, bug #464721).

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

From Red Hat Security Advisory 2009:0308 :

Updated cups packages that fix a security issue are now available for Red Hat Enterprise Linux 3.

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

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

The CUPS security advisory, RHSA-2008:0937, stated that it fixed CVE-2008-3640 for Red Hat Enterprise Linux 3, 4, and 5. It was discovered this flaw was not properly fixed on Red Hat Enterprise Linux 3, however. (CVE-2009-0577)

These new packages contain a proper fix for CVE-2008-3640 on Red Hat Enterprise Linux 3. Red Hat Enterprise Linux 4 and 5 already contain the appropriate fix for this flaw and do not need to be updated.

Users of cups should upgrade to these updated packages, which contain a backported patch to correct this issue.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
34359	SuSE 10 Security Update : CUPS (ZYPP Patch Number 5653)	Nessus	SuSE Local Security Checks	2008/10/7	2021/1/14	critical
36840	Mandriva Linux Security Advisory : cups (MDVSA-2008:211)	Nessus	Mandriva Local Security Checks	2009/4/23	2021/1/6	critical
37836	Ubuntu 6.06 LTS / 7.04 / 7.10 / 8.04 LTS : cupsys vulnerabilities (USN-656-1)	Nessus	Ubuntu Local Security Checks	2009/4/23	2021/1/19	critical
67755	Oracle Linux 5 : cups (ELSA-2008-0937)	Nessus	Oracle Linux Local Security Checks	2013/7/12	2024/10/22	critical
67808	Oracle Linux 3 : cups (ELSA-2009-0308)	Nessus	Oracle Linux Local Security Checks	2013/7/12	2021/1/14	medium

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