Test ID:	1.3.6.1.4.1.25623.1.0.53678
Category:	Debian Local Security Checks
Title:	Debian Security Advisory DSA 403-1 (kernel-image-2.4.18-1-alpha, kernel-image-2.4.18-1-i386, kernel-source-2.4.18)
Summary:	The remote host is missing an update to kernel-image-2.4.18-1-alpha, kernel-image-2.4.18-1-i386, kernel-source-2.4.18;announced via advisory DSA 403-1.
Description:	Summary: The remote host is missing an update to kernel-image-2.4.18-1-alpha, kernel-image-2.4.18-1-i386, kernel-source-2.4.18 announced via advisory DSA 403-1. Vulnerability Insight: Recently multiple servers of the Debian project were compromised using a Debian developers account and an unknown root exploit. Forensics revealed a burneye encrypted exploit. Robert van der Meulen managed to decrypt the binary which revealed a kernel exploit. Study of the exploit by the RedHat and SuSE kernel and security teams quickly revealed that the exploit used an integer overflow in the brk system call. Using this bug it is possible for a userland program to trick the kernel into giving access to the full kernel address space. This problem was found in September by Andrew Morton, but unfortunately that was too late for the 2.4.22 kernel release. This bug has been fixed in kernel version 2.4.23 for the 2.4 tree and 2.6.0-test6 kernel tree. For Debian it has been fixed in version 2.4.18-12 of the kernel source packages, version 2.4.18-14 of the i386 kernel images and version 2.4.18-11 of the alpha kernel images. Solution: Please install the updated package(s). CVSS Score: 7.2 CVSS Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2003-0961 Bugtraq: 20031204 Hot fix for do_brk bug (Google Search) http://marc.info/?l=bugtraq&m=107064830206816&w=2 Bugtraq: 20031204 [iSEC] Linux kernel do_brk() vulnerability details (Google Search) http://marc.info/?l=bugtraq&m=107064798706473&w=2 Bugtraq: 20040112 SmoothWall Project Security Advisory SWP-2004:001 (Google Search) http://marc.info/?l=bugtraq&m=107394143105081&w=2 CERT/CC vulnerability note: VU#301156 http://www.kb.cert.org/vuls/id/301156 Conectiva Linux advisory: CLA-2003:796 http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000796 Debian Security Information: DSA-403 (Google Search) http://www.debian.org/security/2003/dsa-403 Debian Security Information: DSA-417 (Google Search) http://www.debian.org/security/2004/dsa-417 Debian Security Information: DSA-423 (Google Search) http://www.debian.org/security/2004/dsa-423 Debian Security Information: DSA-433 (Google Search) http://www.debian.org/security/2004/dsa-433 Debian Security Information: DSA-439 (Google Search) http://www.debian.org/security/2004/dsa-439 Debian Security Information: DSA-440 (Google Search) http://www.debian.org/security/2004/dsa-440 Debian Security Information: DSA-442 (Google Search) http://www.debian.org/security/2004/dsa-442 Debian Security Information: DSA-450 (Google Search) http://www.debian.org/security/2004/dsa-450 Debian Security Information: DSA-470 (Google Search) http://www.debian.org/security/2004/dsa-470 Debian Security Information: DSA-475 (Google Search) http://www.debian.org/security/2004/dsa-475 http://www.mandriva.com/security/advisories?name=MDKSA-2003:110 http://isec.pl/papers/linux_kernel_do_brk.pdf http://www.redhat.com/support/errata/RHSA-2003-368.html http://www.redhat.com/support/errata/RHSA-2003-389.html http://secunia.com/advisories/10328 http://secunia.com/advisories/10329 http://secunia.com/advisories/10330 http://secunia.com/advisories/10333 http://secunia.com/advisories/10338 SuSE Security Announcement: SuSE-SA:2003:049 (Google Search) http://www.novell.com/linux/security/advisories/2003_049_kernel.html
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