Debian: kernel 2.4 mips/pa-risc Privilege escalation vulnerabilities
Summary
Several local root exploits have been discovered recently in the Linux
kernel. This security advisory updates the mips kernel 2.4.19 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.
For the stable distribution (woody) these problems have been fixed in
version 32.3 of kernel-image-2.4.17-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 f5b7956a75870aaff51ccb52c96a0ab2
Size/MD5 checksum: 29958048 44cb813807b9b1c45984fadfc18d4ba1
Architecture independent components:
Size/MD5 checksum: 24109698 cefc1a3ebfce0d30f97b556ed62674d4
HP Precision architecture:
Size/MD5 checksum: 3531296 605f593d9648fd2ab1aa2d6f106263af
Size/MD5 checksum: 2737992 793396152e7dea3f9a1ea8ea10c4dbe7
Size/MD5 checksum: 2870174 2f2df476a902378a9efa96a79367eed2
Size/MD5 checksum: 3024282 1a687ccbedbba298a7e98ba7d2b20650
Size/MD5 checksum: 3165702 795b734b1e17a75a76c40af8f49e6ec7
These files will probably be moved into the stable distribution on
its next revision.
For apt-get: deb Debian -- Security Information stable/updates main
For dpkg-ftp: dists/stable/updates/main
Mailing list: debian-security-announce@lists.debian.org
Package info: `apt-cache show
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Debian Security Advisory DSA 475-1 security@debian.org
Debian -- Security Information Martin Schulze
April 5th, 2004 Debian -- Debian 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
Size/MD5 checksum: 29943063 7c7e44c64bb8e69800469e5143e4a315
Architecture independent components:
Size/MD5 checksum: 24090548 5b9c3bd3702f00b4a5f1a52d641dbb4d
HP Precision architecture:
Size/MD5 checksum: 3503082 9cd62749253e897d5b901e5018e471f7
Size/MD5 checksum: 2774300 f32542b074f6a272b7c31685a2e96060
Size/MD5 checksum: 2913666 878bcc9861b13e7e063dd6570aa53bdb
Size/MD5 checksum: 3074252 b5e96c96b464f2740eaf08513216e205
Size/MD5 checksum: 3215442 702faf5c0bf94fbcb9883c5c2601a5c4
These files will probably be moved into the stable distribution on
its next revision.
For apt-get: deb Debian -- Security Information stable/updates main
For dpkg-ftp: dists/stable/updates/main
Mailing list: debian-security-announce@lists.debian.org
Package info: `apt-cache show
