RedHat 6.2: Potential kernel vulnerabilities
Summary
Summary
The following problems have been fixed in this kernel release:1) The agpgart.o module was omitted from the 6.2 kernel package. Thismodule is required for proper operation of i810 video chips.2) The AMI MegaRAID driver included in 6.2 requires firmware revision 3.10or higher. Data corruption and lockups can occur if version 3.10 or higheris not used. The megaraid.o module in this updated package refuses to loadif firmware 3.10 or higher is not present.3) AF_UNIX fix addresses a problem in which any user on the system couldperform a DoS4) Exec bug fixes a problem where any user on the system could open any fileor device for side effects on open()5) Masquerading bug fixes protect against bugs in the UDP code that allow anattacker to scan and build paths for packet arrival. This is configurable,because the non security behaviour is useful for some games. This also stopspeople from building attacks using a compromised ftp server to build backchannels at server ports on the masquerrading host.6) Ext2 filesystem bug fixes the error recovery on bad blocks indirectories, which could lead to unpredictable results when continuing toread a directory after an IO failure. Also fixes a bug where it was possibleto get garbage returned from readdir() if you were reading directoryinformation into a user buffer which wasn't swapped into physical memory,and you had multiple threads doing readdir() and seek() on the same filedescriptor.7) A kernel nfsd denial of service exposure is now fixed.8) [Sparc only] Several denial of service attacks by local users on Sparcmachines are now patched.
Solution
Upgrade to kernel-2.2.14-12.
The procedure for upgrading the kernel is documented at:
https://www.redhat.com/en/services/support
Please read the directions for your architecture carefully before proceeding
with the kernel upgrade.
5. Bug IDs fixed ( for more info):
10409 - agp driver not build
6. Obsoleted by:
N/A
7. Conflicts with:
N/A
8. RPMs required:
Red Hat Linux 6.2
intel (i386, i586 and i686 optimized kernels):
alpha:
sparc:
sources:
9. Verification:
MD5 sum Package Name
c89d484320c146ea34959b29eecc97a2 6.2/SRPMS/kernel-2.2.14-12.src.rpm
c8ff378080dbe8b80ff12a917b87087d 6.2/alpha/kernel-2.2.14-12.alpha.rpm
cc66d5776c23b8e35213b11b9fef7df1 6.2/alpha/kernel-doc-2.2.14-12.alpha.rpm
578ac2f5e7f3d791b13d2366d0f3568c 6.2/alpha/kernel-headers-2.2.14-12.alpha.rpm
c7ab6ebfcb8da46c3600a0c0b23bb9ae 6.2/alpha/kernel-smp-2.2.14-12.alpha.rpm
4159b1b9b13c45a00bd2198e183c01ff 6.2/alpha/kernel-source-2.2.14-12.alpha.rpm
1f2735d819c192e8a85d6fe31ad769f4 6.2/i386/kernel-2.2.14-12.i386.rpm
9e52cbb798bc1938d9daaa6e88e0dd14 6.2/i386/kernel-doc-2.2.14-12.i386.rpm
8e86ae48bc41f3dd96908af004a4116c 6.2/i386/kernel-headers-2.2.14-12.i386.rpm
ba03fafbec6373887003bc49b82a1786 6.2/i386/kernel-pcmcia-cs-2.2.14-12.i386.rpm
291cdd4571c36e4f241eb5bdfc5c7131 6.2/i386/kernel-smp-2.2.14-12.i386.rpm
395f90591ae401df818c2472786d76f7 6.2/i386/kernel-source-2.2.14-12.i386.rpm
6d129d9bea0099f8af1c586a690571e8 6.2/i586/kernel-2.2.14-12.i586.rpm
02c7db1b6f91612827d5fc358a0c4b56 6.2/i586/kernel-smp-2.2.14-12.i586.rpm
13b5e3cab890e0a7940d1eebf26fe9b3 6.2/i686/kernel-2.2.14-12.i686.rpm
4b70292e101005947c0b2e49070c3be3 6.2/i686/kernel-smp-2.2.14-12.i686.rpm
d6bf517e60a5c821440c72a15ec43b67 6.2/sparc/kernel-2.2.14-12.sparc.rpm
60221961c206f8238da7275fd34d6a41 6.2/sparc/kernel-doc-2.2.14-12.sparc.rpm
7fa5fcf38df5636f7657b68eb5e3af0e 6.2/sparc/kernel-headers-2.2.14-12.sparc.rpm
3835ec733154d69e23493f97706128ee 6.2/sparc/kernel-smp-2.2.14-12.sparc.rpm
8d21f109ed1b58f97c2f5119253a06ee 6.2/sparc/kernel-source-2.2.14-12.sparc.rpm
These packages are GPG signed by Red Hat, Inc. for security. Our key
is available at:
You can verify each package with the following command:
rpm --checksig
If you only wish to verify that each package has not been corrupted or
tampered with, examine only the md5sum with the following command:
rpm --checksig --nogpg
References
https://www.redhat.com/en/services/support `
Package List
Topic
Topic
Several problems were discovered in the kernel shipped in Red Hat Linux 6.2.
Updated kernel packages are available for download now.
Relevant Releases Architectures
Red Hat Linux 6.2 - i386 alpha sparc
Bugs Fixed