Debian: kernel Multiple vulnerabilities
Summary
Several local root exploits have been discovered recently in the Linux
kernel. This security advisory updates the PowerPC/Apus kernel 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) this problem has been fixed in
version 2.4.26/20040204 of lart, netwinder and riscpc image and in
version 20040204 of kernel-patch-2.4.16-arm.
Other architectures will probably mentioned in a separate advisory or
are not affected (m68k).
For the unstable distribution (sid) these problems will be fixed soon.
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: 562 7bd0b443e490132da8f26188ca560f75
Size/MD5 checksum: 579045 853b5f05e03217dfb47f28cf852dca4c
Size/MD5 checksum: 586 e2cb96946739cfffd4327ae1e218a982
Size/MD5 checksum: 16443 9b5b8c8311cc6ba23abc2e121882281a
Size/MD5 checksum: 624 d2258e373574684da142a45ecfc4312f
Size/MD5 checksum: 21783 fc07fb8db829045ef9a8ee6881e1af48
Size/MD5 checksum: 592 f2252946f185d1c52796a68a1d442cb0
Size/MD5 checksum: 19104 144bfd5b87a5daccf879049334b24bcd
Architecture independent components:
Size/MD5 checksum: 583148 6a4951879008cc3d882d6a30112d0cbc
ARM architecture:
Size/MD5 checksum: 717092 eb20d52fed79cfe95981f1838bc38e0c
Size/MD5 checksum: 3421140 3e0dfbdcb48437ab733d43c92deb0157
Size/MD5 checksum: 6671136 72f1f771e847c593e83179b6dbda4074
Size/MD5 checksum: 2910348 c4fab31d10a137738aeb722eb7358488
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 440-1 security@debian.org
Debian -- Security Information Martin Schulze
February 18th, 2004 Debian -- Debian security FAQ
Package : kernel-source-2.4.17, kernel-patch-2.4.17-apus
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 PowerPC/Apus kernel 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 2.4.17-4 of powerpc/apus images.
Other architectures will probably mentioned in a separate advisory or
are not affected (m68k).
For the unstable distribution (sid) this problem will be fixed soon.
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: 690 f4f41d8b5ce68462139eadff5e340b2f
Size/MD5 checksum: 38791 17b8f97671d0f1be7c595123bcf0c86c
Size/MD5 checksum: 29445154 d5de2a4dc49e32c37e557ef856d5d132
Size/MD5 checksum: 667 beff21e365dba9487c3d1009e6bb8ce7
Size/MD5 checksum: 489649 3feef2fdda2cb1385e12fb18b33c3787
Architecture independent components:
Size/MD5 checksum: 1719904 4299b7aeebc01ede7eb5a2f2f5ba0b45
Size/MD5 checksum: 23878388 15202df8a94f2aa17f09382f520021fc
PowerPC architecture:
Size/MD5 checksum: 3365696 0f03db43dd1c83a6c02cbd474ae54685
Size/MD5 checksum: 2210948 1f12b255f6644f144e3426fa5865b27e
Size/MD5 checksum: 4078 6a495ea4088b900129c60dd769f7da8d
Size/MD5 checksum: 490346 41eebb692f46cfcb118818048de6d6ad
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 441-1 security@debian.org
Debian -- Security Information Martin Schulze
February 18th, 2004 Debian -- Debian security FAQ
Package : kernel-patch-2.4.17-mips
Vulnerability : missing function return value check
Problem-Type : local
Debian-specific: no
CVE ID : 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.
For the stable distribution (woody) this problem has been fixed in
version 2.4.17-0.020226.2.woody5 for mips and mipsel kernel images.
Other architectures will probably mentioned in a separate advisory or
are not affected (m68k).
For the unstable distribution (sid) this problem will be fixed soon
with the next upload of a 2.4.19 kernel image and in version
2.4.22-0.030928.3 for 2.4.22 for the mips and mipsel architectures.
This problem is also fixed in the upstream version of Linux 2.4.25 and
2.6.3.
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: 786 b96d0f387a948cf64a07e6d6c5102b30
Size/MD5 checksum: 1138658 dc1df0219c33c0de14ffd22ea8585ad5
Architecture independent components:
Size/MD5 checksum: 1138888 ba735096447ec98541c3d35838348e95
Big endian MIPS architecture:
Size/MD5 checksum: 3475886 0e2394ed3cee2a7dafa2d75a7a2042e6
Size/MD5 checksum: 2042458 1585029d1c0b32ce770a29d74b3720f8
Size/MD5 checksum: 2042414 83894b6f444b63c57a34051be23f8e04
Little endian MIPS architecture:
Size/MD5 checksum: 3474568 099f3c8bc36668123c2414aa861805c0
Size/MD5 checksum: 2197826 defe3a975447f16b14f5d52b61991458
Size/MD5 checksum: 2193704 89fc943ed1530fd0da6ca7a0303acb93
Size/MD5 checksum: 15114 65e08c5c4f432a537641b6b3a76a3c42
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
