Debian Security Advisory DSA 475-1 security@debian.org
http://www.debian.org/security/
Martin Schulze
April 5th, 2004 http://www.debian.org/security/faq
Package : kernel-image-2.4.17-hppa
Vulnerability : several vulnerabilities
Problem-Type : local
Debian-specific: no
CVE ID : CAN-2003-0961 CAN-2003-0985 CAN-2004-0077
Several local root exploits have been discovered recently in the
Linux kernel. This security advisory updates the PA-RISC kernel
2.4.18 for Debian GNU/Linux. The Common Vulnerabilities and
Exposures project identifies the following problems that are fixed
with this update:
CAN-2003-0961:
An integer overflow in brk() system call (do_brk() function) for
Linux allows a local attacker to gain root privileges. Fixed
upstream in Linux 2.4.23.
CAN-2003-0985:
Paul Starzetz discovered a flaw in bounds checking in mremap()
in the Linux kernel (present in version 2.4.x and 2.6.x) which may
allow a local attacker to gain root privileges. Version 2.2 is not
affected by this bug. Fixed upstream in Linux 2.4.24.
CAN-2004-0077:
Paul Starzetz and Wojciech Purczynski of isec.pl discovered a
critical security vulnerability in the memory management code of
Linux inside the mremap(2) system call. Due to missing function
return value check of internal functions a local attacker can gain
root privileges. Fixed upstream in Linux 2.4.25 and 2.6.3.
Please note that the source package has to include a lot of
updates in order to compile the package, which wasn’t possible with
the old source package.
For the stable distribution (woody) these problems have been
fixed in version 62.1 of kernel-image-2.4.18-hppa.
For the unstable distribution (sid) these problems have been
fixed in version 2.4.25-1 of kernel-image-2.4.25-hppa.
We recommend that you upgrade your Linux kernel packages
immediately.
Upgrade Instructions
wget url
will fetch the file for you
dpkg -i file.deb
will install the referenced file.
If you are using the apt-get package manager, use the line for
sources.list as given below:
apt-get update
will update the internal database apt-get upgrade
will install corrected packages
You may use an automated update by adding the resources from the
footer to the proper configuration.
Debian GNU/Linux 3.0 alias woody
Source archives:
Size/MD5 checksum: 713 b04fb5bfad0a9a46fcda5e0afe95d2ac
http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-hppa/kernel-image-2.4.18-hppa_62.1.tar.gz
Size/MD5 checksum: 29943063 7c7e44c64bb8e69800469e5143e4a315
Architecture independent components:
Size/MD5 checksum: 24090548 5b9c3bd3702f00b4a5f1a52d641dbb4d
HP Precision architecture:
Size/MD5 checksum: 3503082 9cd62749253e897d5b901e5018e471f7
http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-hppa/kernel-image-2.4.18-32_62.1_hppa.deb
Size/MD5 checksum: 2774300 f32542b074f6a272b7c31685a2e96060
http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-hppa/kernel-image-2.4.18-32-smp_62.1_hppa.deb
Size/MD5 checksum: 2913666 878bcc9861b13e7e063dd6570aa53bdb
http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-hppa/kernel-image-2.4.18-64_62.1_hppa.deb
Size/MD5 checksum: 3074252 b5e96c96b464f2740eaf08513216e205
http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-hppa/kernel-image-2.4.18-64-smp_62.1_hppa.deb
Size/MD5 checksum: 3215442 702faf5c0bf94fbcb9883c5c2601a5c4
These files will probably be moved into the stable distribution
on its next revision.
For apt-get: deb http://security.debian.org/
stable/updates main
For dpkg-ftp: ftp://security.debian.org/debian-security
dists/stable/updates/main
Mailing list: debian-security-announce@lists.debian.org
Package info: `apt-cache show <pkg>’ and http://packages.debian.org/<pkg>