The Mandriva Security Team published a new security update: MDKSA-2005:217 - Updated netpbm packages fix pnmtopng vulnerabilities for Mandriva Linux. Here the announcement:

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Mandriva Linux Security Advisory MDKSA-2005:217
http://www.mandriva.com/security/
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Package : netpbm
Date : November 30, 2005
Affected: 10.1, Corporate 2.1, Corporate 3.0
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Problem Description:

Greg Roelofs discovered and fixed several buffer overflows in
pnmtopng which is also included in netpbm, a collection of
graphic conversion utilities, that can lead to the execution of
arbitrary code via a specially crafted PNM file.

Multiple buffer overflows in pnmtopng in netpbm 10.0 and
earlier allow attackers to execute arbitrary code via a
crafted PNM file. (CVE-2005-3632)

An off-by-one buffer overflow in pnmtopng, when using the -alpha
command line option, allows attackers to cause a denial of
service (crash) and possibly execute arbitrary code via a
crafted PNM file with exactly 256 colors. (CVE-2005-3662)

The updated packages have been patched to correct this problem.
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References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-3632
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-3662
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Updated Packages:

Mandriva Linux 10.1:
550eae5a55b39101687b7a0532219627 10.1/RPMS/libnetpbm9-9.24-8.2.101mdk.i586.rpm
b3b2ea4437130703b68a5b3868eaec0b 10.1/RPMS/libnetpbm9-devel-9.24-8.2.101mdk.i586.rpm
653e84715019165ea620d64e5969714f 10.1/RPMS/libnetpbm9-static-devel-9.24-8.2.101mdk.i586.rpm
ac1db50f9caf2731a0dbc63e55688ef9 10.1/RPMS/netpbm-9.24-8.2.101mdk.i586.rpm
c0b1026156fd6376adba353b4f5d0528 10.1/SRPMS/netpbm-9.24-8.2.101mdk.src.rpm

Mandriva Linux 10.1/X86_64:
a4fb05222ac3917637ae6a0773f7cdc9 x86_64/10.1/RPMS/lib64netpbm9-9.24-8.2.101mdk.x86_64.rpm
32951fca67c13886bdb779de08f8edf3 x86_64/10.1/RPMS/lib64netpbm9-devel-9.24-8.2.101mdk.x86_64.rpm
dafac5b2622f774bc311ef6004e4fa3e x86_64/10.1/RPMS/lib64netpbm9-static-devel-9.24-8.2.101mdk.x86_64.rpm
6984338299c35aca2489b8dae94e9e65 x86_64/10.1/RPMS/netpbm-9.24-8.2.101mdk.x86_64.rpm
c0b1026156fd6376adba353b4f5d0528 x86_64/10.1/SRPMS/netpbm-9.24-8.2.101mdk.src.rpm

Corporate Server 2.1:
cfeeabb6edac6d7234f6e09beb19ff36 corporate/2.1/RPMS/libnetpbm9-9.24-4.5.C21mdk.i586.rpm
4b34fb42803f511646d0129d7fc7dd2f corporate/2.1/RPMS/libnetpbm9-devel-9.24-4.5.C21mdk.i586.rpm
89b46b4d6a89797916ee54a48a38a732 corporate/2.1/RPMS/libnetpbm9-static-devel-9.24-4.5.C21mdk.i586.rpm
c4af1176267c16480c3d15f24dcb5db9 corporate/2.1/RPMS/netpbm-9.24-4.5.C21mdk.i586.rpm
0bf9af1326905eb13fb3f4fb66424653 corporate/2.1/SRPMS/netpbm-9.24-4.5.C21mdk.src.rpm

Corporate Server 2.1/X86_64:
27b0f5ef22581bc5c5c23bf880302c58 x86_64/corporate/2.1/RPMS/libnetpbm9-9.24-4.5.C21mdk.x86_64.rpm
1743d3247a1e3de046fbf31ce37e443d x86_64/corporate/2.1/RPMS/libnetpbm9-devel-9.24-4.5.C21mdk.x86_64.rpm
4e67e3d7940f30c3bc86cf5a2f215543 x86_64/corporate/2.1/RPMS/libnetpbm9-static-devel-9.24-4.5.C21mdk.x86_64.rpm
7ab637139c9b1977923cae04dd3cc9de x86_64/corporate/2.1/RPMS/netpbm-9.24-4.5.C21mdk.x86_64.rpm
0bf9af1326905eb13fb3f4fb66424653 x86_64/corporate/2.1/SRPMS/netpbm-9.24-4.5.C21mdk.src.rpm

Corporate 3.0:
784b993f4e0409fe5255c3228c72ea3b corporate/3.0/RPMS/libnetpbm9-9.24-8.3.C30mdk.i586.rpm
319272b7f74900cabd06c6fa5e0b52b2 corporate/3.0/RPMS/libnetpbm9-devel-9.24-8.3.C30mdk.i586.rpm
e6feb19b8b2c0ac6d522c1a73035811d corporate/3.0/RPMS/libnetpbm9-static-devel-9.24-8.3.C30mdk.i586.rpm
42406aa8e04afd173d2194b50d11ca13 corporate/3.0/RPMS/netpbm-9.24-8.3.C30mdk.i586.rpm
17a729bc07c296f77efb87301d122aa6 corporate/3.0/SRPMS/netpbm-9.24-8.3.C30mdk.src.rpm

Corporate 3.0/X86_64:
d0f1d6da66166acfc0ce18dfd55548e1 x86_64/corporate/3.0/RPMS/lib64netpbm9-9.24-8.3.C30mdk.x86_64.rpm
9e5d975423d7d00a1cfc5b1ea87c07c4 x86_64/corporate/3.0/RPMS/lib64netpbm9-devel-9.24-8.3.C30mdk.x86_64.rpm
f3f7f6ec681c2edbf29e789e1f9e1887 x86_64/corporate/3.0/RPMS/lib64netpbm9-static-devel-9.24-8.3.C30mdk.x86_64.rpm
5f27304b1b68639211c34e573c163b52 x86_64/corporate/3.0/RPMS/netpbm-9.24-8.3.C30mdk.x86_64.rpm
17a729bc07c296f77efb87301d122aa6 x86_64/corporate/3.0/SRPMS/netpbm-9.24-8.3.C30mdk.src.rpm
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To upgrade automatically use MandrivaUpdate or urpmi. The verification
of md5 checksums and GPG signatures is performed automatically for you.

All packages are signed by Mandriva for security. You can obtain the
GPG public key of the Mandriva Security Team by executing:

gpg --recv-keys --keyserver pgp.mit.edu 0x22458A98

You can view other update advisories for Mandriva Linux at:

http://www.mandriva.com/security/advisories

If you want to report vulnerabilities, please contact

security_(at)_mandriva.com
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Type Bits/KeyID Date User ID
pub 1024D/22458A98 2000-07-10 Mandriva Security Team
<security*mandriva.com>
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