Fedora Kernel 2.4.22 Moderate: Privilege Escalation by Paul Starzetz

The kernel package contains the Linux kernel (vmlinuz), the core of your

Red Hat Linux operating system. The kernel handles the basic functions

of the operating system: memory allocation, process allocation, device

input and output, etc.

Paul Starzetz discovered a flaw in bounds checking in mremap() in the Linux

kernel versions 2.4.23 and previous which may allow a local attacker to

gain root privileges. No exploit is currently available; however, it is

believed that this issue is exploitable (although not trivially.) The

Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned

the name CAN-2003-0985 to this issue.

All users are advised to upgrade to these errata packages, which contain a

backported security patch that corrects this issue.

Red Hat would like to thank Paul Starzetz from ISEC for disclosing this

issue as well as Andrea Arcangeli and Solar Designer for working on the patch.

These packages also contain a fix for a minor information leak in the real

time clock (rtc) routines. The Common Vulnerabilities and Exposures project

(cve.mitre.org) has assigned the name CAN-2003-0984 to this issue.

* Wed Dec 24 2003 Dave Jones <davej@redhat.com>

- Fix mremap corner case.

* Tue Dec 23 2003 Dave Jones <davej@redhat.com>

- Numerous USB fixes (#110307, #90442, #107929, #110872)

* Tue Dec 16 2003 Dave Jones <davej@redhat.com>

- Fix leak in CDROM IOCTL. (#112249)

This update can be downloaded from:

c9a94fe6d6a3cffb2604a17bf42839e2 SRPMS/kernel-2.4.22-1.2138.nptl.src.rpm

841d46869237a9acce1c5e667e13807e i386/kernel-source-2.4.22-1.2138.nptl.i386.rpm

ad2e530db065ddc5cceef49ff825d606 i386/kernel-doc-2.4.22-1.2138.nptl.i386.rpm

ed345bd737557d25437d8a06ff10c6ed i386/kernel-BOOT-2.4.22-1.2138.nptl.i386.rpm

bc4dab2573386726679014c6fa2eb059 i386/debug/kernel-debuginfo-2.4.22-1.2138.nptl.i386.rpm

88bb242a1d86c54674c8be1b2a5d918e i386/kernel-2.4.22-1.2138.nptl.i586.rpm

e5f61174a8586eb7487453dae7ea1875 i386/debug/kernel-debuginfo-2.4.22-1.2138.nptl.i586.rpm

ee7ac4ffefdfa5ceff18e10d9c5b776b i386/kernel-2.4.22-1.2138.nptl.i686.rpm

50a7aabcbb8642c878714e3c58a49dff i386/kernel-smp-2.4.22-1.2138.nptl.i686.rpm

fdd33ad20548d78295e59a3d3c7d1f5b i386/debug/kernel-debuginfo-2.4.22-1.2138.nptl.i686.rpm

8b6ee386df3bcb68dd1c149c91f677e5 i386/kernel-2.4.22-1.2138.nptl.athlon.rpm

01af9cea1186fefc4e844c4d78cc7a06 i386/kernel-smp-2.4.22-1.2138.nptl.athlon.rpm

01592b67d16d33f577c4de864f3799e5 i386/debug/kernel-debuginfo-2.4.22-1.2138.nptl.athlon.rpm

This update can also be installed with the Update Agent; you can

launch the Update Agent with the 'up2date' command.

References:

CVE -CVE-2003-0985

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