drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Fehlende Rückgabewertprüfung in mremap im Kernel (2.4.17, hppa)
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Fehlende Rückgabewertprüfung in mremap im Kernel (2.4.17, hppa)
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ID: |
DSA-470-1 |
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Distribution: |
Debian |
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Plattformen: |
Debian woody |
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Datum: |
Fr, 2. April 2004, 13:00 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2003-0961
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2003-0985
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-0077 |
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Applikationen: |
Linux |
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Originalnachricht |
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1
-------------------------------------------------------------------------- Debian Security Advisory DSA 470-1 security@debian.org http://www.debian.org/security/ Martin Schulze April 1st, 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 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:
kernel-image-2.4.17-hppa_32.3.dsc Size/MD5 checksum: 713 f5b7956a75870aaff51ccb52c96a0ab2 kernel-image-2.4.17-hppa_32.3.tar.gz Size/MD5 checksum: 29958048 44cb813807b9b1c45984fadfc18d4ba1
Architecture independent components:
kernel-source-2.4.17-hppa_32.3_all.deb Size/MD5 checksum: 24109698 cefc1a3ebfce0d30f97b556ed62674d4
HP Precision architecture:
kernel-headers-2.4.17-hppa_32.3_hppa.deb Size/MD5 checksum: 3531296 605f593d9648fd2ab1aa2d6f106263af kernel-image-2.4.17-32_32.3_hppa.deb Size/MD5 checksum: 2737992 793396152e7dea3f9a1ea8ea10c4dbe7 kernel-image-2.4.17-32-smp_32.3_hppa.deb Size/MD5 checksum: 2870174 2f2df476a902378a9efa96a79367eed2 kernel-image-2.4.17-64_32.3_hppa.deb Size/MD5 checksum: 3024282 1a687ccbedbba298a7e98ba7d2b20650 kernel-image-2.4.17-64-smp_32.3_hppa.deb Size/MD5 checksum: 3165702 795b734b1e17a75a76c40af8f49e6ec7
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-securitydists/stable/updates/main Mailing list: debian-security-announce@lists.debian.org Package info: `apt-cache show <pkg>' and http://packages.debian.org/<pkg>
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