[GLSA-200711-16] CUPS: Memory corruption
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Article ID: 28199
Last updated: 27 Jan, 2009
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Views: 403
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Posted: 22 Jan, 2009
by: Tech Pubs S.
Updated: 27 Jan, 2009
by: Tech Pubs S.
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[GLSA-200711-16] CUPS: Memory corruption |
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| (C) 2007 Tenable Network Security, Inc. |
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| Family | Gentoo Local Security Checks |
| Plugin ID | 28199 |
| Bugtraq ID |
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| CVE ID | CVE-2007-4351
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| Description: |
The remote host is affected by the vulnerability described in GLSA-200711-16
(CUPS: Memory corruption)
Alin Rad Pop (Secunia Research) discovered an off-by-one error in the
ippReadIO() function when handling Internet Printing Protocol (IPP)
tags that might allow to overwrite one byte on the stack.
Impact
A local attacker could send a specially crafted IPP request containing
"textWithLanguage" or "nameWithLanguage" tags, leading to a Denial of
Service or the execution of arbitrary code with the privileges of the
"lp" user. If CUPS is configured to allow network printing, this
vulnerability might be remotely exploitable.
Workaround
To avoid remote exploitation, network access to CUPS servers on port
631/udp should be restricted. In order to do this, update the "Listen"
setting in cupsd.conf to "Listen localhost:631" or add a rule to
the systems firewall. However, this will not avoid local users from
exploiting this vulnerability.
References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4351
Solution:
All CUPS users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-print/cups-1.2.12-r2"
Risk factor : High
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