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Message-ID: <20091209004732.GG26756@severus.strandboge.com>
Date: Tue, 8 Dec 2009 18:47:32 -0600
From: Jamie Strandboge <jamie@...onical.com>
To: ubuntu-security-announce@...ts.ubuntu.com
Cc: bugtraq@...urityfocus.com, full-disclosure@...ts.grok.org.uk
Subject: [USN-868-1] GRUB 2 vulnerability
===========================================================
Ubuntu Security Notice USN-868-1 December 09, 2009
grub2 vulnerability
CVE-2009-4128
===========================================================
A security issue affects the following Ubuntu releases:
Ubuntu 9.10
This advisory also applies to the corresponding versions of
Kubuntu, Edubuntu, and Xubuntu.
The problem can be corrected by upgrading your system to the
following package versions:
Ubuntu 9.10:
grub2 1.97~beta4-1ubuntu4.1
In general, a standard system upgrade is sufficient to effect the
necessary changes.
Users who have upgraded from GRUB Legacy to GRUB 2 and are still using Grub
Legacy to chainload into GRUB 2, you will have to run the following command
(possibly adjusting 'hd0') to update GRUB 2's on disk core image:
$ sudo grub-install --no-floppy --grub-setup=/bin/true "(hd0)"
If you previously ran 'upgrade-from-grub-legacy', a standard system upgrade
is sufficient to effect the necessary changes.
Details follow:
It was discovered that GRUB 2 did not properly validate passwords. An
attacker with physical access could conduct a brute force attack and bypass
authentication by submitting a 1 character password.
Updated packages for Ubuntu 9.10:
Source archives:
http://security.ubuntu.com/ubuntu/pool/main/g/grub2/grub2_1.97~beta4-1ubuntu4.1.diff.gz
Size/MD5: 250341 94284059eefdd8b1a204142abedb645c
http://security.ubuntu.com/ubuntu/pool/main/g/grub2/grub2_1.97~beta4-1ubuntu4.1.dsc
Size/MD5: 1945 66af22931f8a965f49a26bc84c5fb9e2
http://security.ubuntu.com/ubuntu/pool/main/g/grub2/grub2_1.97~beta4.orig.tar.gz
Size/MD5: 1244094 78edf78a2cf4ee39d539ba0b82a6afed
amd64 architecture (Athlon64, Opteron, EM64T Xeon):
http://security.ubuntu.com/ubuntu/pool/main/g/grub2/grub-common_1.97~beta4-1ubuntu4.1_amd64.deb
Size/MD5: 1008342 a3cd4c29207668d03b3f0e6f94805642
http://security.ubuntu.com/ubuntu/pool/main/g/grub2/grub-pc_1.97~beta4-1ubuntu4.1_amd64.deb
Size/MD5: 444642 676c9efd4f0dc53510fe200993512fc3
http://security.ubuntu.com/ubuntu/pool/universe/g/grub2/grub-coreboot_1.97~beta4-1ubuntu4.1_amd64.deb
Size/MD5: 227576 1c99905094ad542ccb52aaf7da06a287
http://security.ubuntu.com/ubuntu/pool/universe/g/grub2/grub-efi-amd64_1.97~beta4-1ubuntu4.1_amd64.deb
Size/MD5: 297472 329b8b5e30b12106a9c811e082721436
http://security.ubuntu.com/ubuntu/pool/universe/g/grub2/grub-efi-ia32_1.97~beta4-1ubuntu4.1_amd64.deb
Size/MD5: 250536 e739653b2e0028893df0b8a1aaf82c69
http://security.ubuntu.com/ubuntu/pool/universe/g/grub2/grub-efi_1.97~beta4-1ubuntu4.1_amd64.deb
Size/MD5: 1476 f3e99ae5c03700476811c248cb4a14c9
http://security.ubuntu.com/ubuntu/pool/universe/g/grub2/grub-emu_1.97~beta4-1ubuntu4.1_amd64.deb
Size/MD5: 345940 13b038768ebe93df1520db2111ccd751
http://security.ubuntu.com/ubuntu/pool/universe/g/grub2/grub-firmware-qemu_1.97~beta4-1ubuntu4.1_amd64.deb
Size/MD5: 400562 3e6bad6edb5ca1813aa2fa3d639e810a
http://security.ubuntu.com/ubuntu/pool/universe/g/grub2/grub-ieee1275_1.97~beta4-1ubuntu4.1_amd64.deb
Size/MD5: 214358 f42279a0623bd57be2bcd7ff7cd55bf5
http://security.ubuntu.com/ubuntu/pool/universe/g/grub2/grub-linuxbios_1.97~beta4-1ubuntu4.1_amd64.deb
Size/MD5: 1470 2c1a2294f6e47b25c7ba6aae15540b18
http://security.ubuntu.com/ubuntu/pool/universe/g/grub2/grub-rescue-pc_1.97~beta4-1ubuntu4.1_amd64.deb
Size/MD5: 752180 c4e35cf34426692f56054a2b684caee6
http://security.ubuntu.com/ubuntu/pool/universe/g/grub2/grub2_1.97~beta4-1ubuntu4.1_amd64.deb
Size/MD5: 2606 7bf8e3b76a2fb80395200fdb34ce92c3
i386 architecture (x86 compatible Intel/AMD):
http://security.ubuntu.com/ubuntu/pool/main/g/grub2/grub-common_1.97~beta4-1ubuntu4.1_i386.deb
Size/MD5: 994122 9ca29e8e186c28bcb6e2ca110ce5c678
http://security.ubuntu.com/ubuntu/pool/main/g/grub2/grub-pc_1.97~beta4-1ubuntu4.1_i386.deb
Size/MD5: 433532 c2cd60a80ad48983a196b071abd54fb7
http://security.ubuntu.com/ubuntu/pool/universe/g/grub2/grub-coreboot_1.97~beta4-1ubuntu4.1_i386.deb
Size/MD5: 227602 5cfd70769ecc58b804d6b8161a617863
http://security.ubuntu.com/ubuntu/pool/universe/g/grub2/grub-efi-amd64_1.97~beta4-1ubuntu4.1_i386.deb
Size/MD5: 296628 d7c63b6bf1bd1d0ba2c3a0a97adc3cf5
http://security.ubuntu.com/ubuntu/pool/universe/g/grub2/grub-efi-ia32_1.97~beta4-1ubuntu4.1_i386.deb
Size/MD5: 249016 51f9c46b8e7ad9d69041018b408dfa52
http://security.ubuntu.com/ubuntu/pool/universe/g/grub2/grub-efi_1.97~beta4-1ubuntu4.1_i386.deb
Size/MD5: 1478 e58af38d18d4fc457279041b95a7f47b
http://security.ubuntu.com/ubuntu/pool/universe/g/grub2/grub-emu_1.97~beta4-1ubuntu4.1_i386.deb
Size/MD5: 327234 23389dcc94cae8666a9468b817c6d55d
http://security.ubuntu.com/ubuntu/pool/universe/g/grub2/grub-firmware-qemu_1.97~beta4-1ubuntu4.1_i386.deb
Size/MD5: 400558 c483aa4407641f759bf6d6e919f4cf4d
http://security.ubuntu.com/ubuntu/pool/universe/g/grub2/grub-ieee1275_1.97~beta4-1ubuntu4.1_i386.deb
Size/MD5: 214362 04fea0a758a1f151fc11b5b7263d55fc
http://security.ubuntu.com/ubuntu/pool/universe/g/grub2/grub-linuxbios_1.97~beta4-1ubuntu4.1_i386.deb
Size/MD5: 1470 2c0ac267a93d49078a396c0461d85eef
http://security.ubuntu.com/ubuntu/pool/universe/g/grub2/grub-rescue-pc_1.97~beta4-1ubuntu4.1_i386.deb
Size/MD5: 752154 3b45262773f36cfa0418d3dbd106a371
http://security.ubuntu.com/ubuntu/pool/universe/g/grub2/grub2_1.97~beta4-1ubuntu4.1_i386.deb
Size/MD5: 2610 d6a3595f00a9f78fd007637f6fca9504
lpia architecture (Low Power Intel Architecture):
http://ports.ubuntu.com/pool/main/g/grub2/grub-common_1.97~beta4-1ubuntu4.1_lpia.deb
Size/MD5: 994762 593e7cbb941e44b3ce873ec4e0e5e10e
http://ports.ubuntu.com/pool/main/g/grub2/grub-pc_1.97~beta4-1ubuntu4.1_lpia.deb
Size/MD5: 428152 f1d4e8bef9edbfe16e79232de6d5c28b
http://ports.ubuntu.com/pool/universe/g/grub2/grub-efi-ia32_1.97~beta4-1ubuntu4.1_lpia.deb
Size/MD5: 249668 c07a97cc2e04ebf1f551652dd5fe89f7
http://ports.ubuntu.com/pool/universe/g/grub2/grub-efi_1.97~beta4-1ubuntu4.1_lpia.deb
Size/MD5: 1476 28da02262428fe931fe85d5ff650cd97
http://ports.ubuntu.com/pool/universe/g/grub2/grub-emu_1.97~beta4-1ubuntu4.1_lpia.deb
Size/MD5: 328712 ddb8770c9770c923f4c9b93d91221f41
http://ports.ubuntu.com/pool/universe/g/grub2/grub-firmware-qemu_1.97~beta4-1ubuntu4.1_lpia.deb
Size/MD5: 400586 70d2ac9b2f4d3f8b46635df8a4798de1
http://ports.ubuntu.com/pool/universe/g/grub2/grub-ieee1275_1.97~beta4-1ubuntu4.1_lpia.deb
Size/MD5: 214528 5247f468e60f5ac431514fa9c070b2ac
http://ports.ubuntu.com/pool/universe/g/grub2/grub-linuxbios_1.97~beta4-1ubuntu4.1_lpia.deb
Size/MD5: 199482 a710f7be88ee6a8b0a1b3ff134ab43be
http://ports.ubuntu.com/pool/universe/g/grub2/grub-rescue-pc_1.97~beta4-1ubuntu4.1_lpia.deb
Size/MD5: 741660 8d4127f5f6651a592f6b91ac9152c60c
http://ports.ubuntu.com/pool/universe/g/grub2/grub2_1.97~beta4-1ubuntu4.1_lpia.deb
Size/MD5: 2602 11d90bd876010d9334275515a6908915
sparc architecture (Sun SPARC/UltraSPARC):
http://ports.ubuntu.com/pool/main/g/grub2/grub-common_1.97~beta4-1ubuntu4.1_sparc.deb
Size/MD5: 1002148 66abb79f534f3d55e45c51859c618a06
http://ports.ubuntu.com/pool/universe/g/grub2/grub-emu_1.97~beta4-1ubuntu4.1_sparc.deb
Size/MD5: 332094 bacedc782f461faed75006715ee955e6
http://ports.ubuntu.com/pool/universe/g/grub2/grub-ieee1275_1.97~beta4-1ubuntu4.1_sparc.deb
Size/MD5: 334620 e37a7b515ea456152f714caf796de3c0
http://ports.ubuntu.com/pool/universe/g/grub2/grub2_1.97~beta4-1ubuntu4.1_sparc.deb
Size/MD5: 2620 331f84d64fbef94c1b6a97425009db0c
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