Linux kernel do_mremap allows elevated privileges
| linux-mremap-gain-privileges (15244) |  High Risk |
Description:
Linux kernel could allow a local attacker to gain elevated privileges on the system, caused by a vulnerability in the memory management code. The do_mremap function allows for the remapping, resizing, and moving of a virtual memory area (VMA). The do_mremap function fails to properly check the value returned by the do_munmap function. A local attacker could exploit this vulnerability to execute arbitrary code on the vulnerable system with elevated privileges.
Consequences:
Gain Privileges
Remedy:
For Linux Kernel 2.4.x:
Upgrade to the latest version of Linux kernel (2.4.25 or later), available from the Linux Kernel Web site. See References.
For Linux Kernel 2.6.x:
Upgrade to the latest version of Linux kernel (2.6.3 or later), available from the Linux Kernel Web site. See References.
For Red Hat Linux 9:
Upgrade to the latest kernel package (2.4.20-30.9 or later), as listed in RHSA-2004:065-04 for more information. See References.
For Red Hat Linux:
Upgrade to the latest kernel package, as listed below. Refer to RHSA-2004:069-06 for more information. See References.
Red Hat Enterprise Linux AS (v. 2.1), ES (v. 2.1), and WS (v. 2.1): 2.4.9-e.38 or later
For Red Hat Linux:
Upgrade to the latest kernel package, as listed below. Refer to RHSA-2004:106-10 for more information. See References.
Red Hat Enterprise Linux AS (v. 2.1) and Advanced Workstation 2.1 for the Itanium Processor: 2.4.18-e.43 or later
For Debian GNU/Linux 3.0 (woody):
Upgrade to the latest kernel package, as listed below. Refer to DSA-438-1 for more information. See References.
kernel-source: 2.4.18 or later
kernel-image (Alpha): 2.4.18-1
kernel-image (Intel i386): 2.4.18-1-i386 or later
kernel-image (Intel i386bf): 2.4.18-i386bf
kernel-patch (PPC): 2.4.18 or later
For Debian GNU/Linux 3.0 (woody) containing the linux-kernel-2.4.17-s390 package:
Upgrade to the latest kernel package (0.0.20020816-0.woody.2 or later), as listed in DSA-442-1. See References.
For Debian GNU/Linux 3.0 (woody) containing the mips+mipsel-2.4.17 package:
Upgrade to the latest kernel package (2.4.17-0.020226.2.woody5 or later), as listed in DSA-441-1. See References.
For Debian GNU/Linux 3.0 (woody) containing the powerpc-apus-2.4.17 package:
Upgrade to the latest kernel package (2.4.17-4 or later), as listed in DSA-440-1. See References.
For Debian GNU/Linux 3.0 (woody) containing the arm-2.2.19 package:
Upgrade to the latest kernel package (2.2.19.1-4woody1 or later), as listed in DSA-456-1. See References.
For Debian GNU/Linux 3.0 (woody) containing the kernel-2.4.17 package:
Upgrade to the latest kernel package (2.4.17-ia64_011226.16 or later), as listed in DSA-444-1. See References.
For Debian GNU/Linux 3.0 (woody) containing the mips-2.4.17 package:
Upgrade to the latest kernel package (2.4.19-4.woody1 or later), as listed in DSA-450-1. See References.
For Debian GNU/Linux 3.0 (alias woody) containing the kernel-2.2.20 package:
Upgrade to the latest kernel package (2.2.20-5woody3 or later), as listed in DSA-453-1. See References.
For Debian GNU/Linux 3.0 (woody) containing the kernel-2.2.22 package:
Upgrade to the latest kernel package (2.2.22-1woody1 or later), as listed in DSA-454-1. See References.
For Debian GNU/Linux 3.0 (woody) containing the kernel-2.2.10 package:
Upgrade to the latest kernel package (2.2.10-13woody1 or later), as listed in DSA-466-1. See References.
For Debian GNU/Linux 3.0 (woody) containing the hppa package:
Upgrade to the latest kernel package, as listed below. Refer to DSA-475-1 for more information. See References.
Debian GNU/Linux 3.0: 2.4.18-hppa or later
For SuSE Linux:
Upgrade to the latest kernel package, as listed below. Refer to SuSE Security Announcement SuSE-SA:2004:005 for more information. See References.
SuSE Linux 9.0 (Intel): 2.4.21-192 or later
SuSE Linux 8.2: 2.4.20-105 or later
SuSE Linux 8.1: 2.4.21-189 or later
SuSE Linux 9.0 (x86_64 Platform): 2.4.21-201 or later
For Slackware Linux:
Upgrade to the latest kernel package, as listed below. Refer to slackware-security Mailing List, Wed, 18 Feb 2004 04:37:55 -0800 (PST) for more information. See References.
Slackware Linux 9.1 and -current: 2.4.24-i486-2 or later
For Conectiva Linux:
Upgrade to the latest kernel package, as listed below. Refer to Conectiva Linux Security Announcement CLSA-2004:820 for more information. See References.
Conectiva Linux 8: 2.4.19-1U80_21cl or later
Conectiva Linux 9: 2.4.21-31301U90_15cl or later
For Turbolinux:
Upgrade to the latest kernel package (2.4.18-17 or later), as listed in Turbolinux Security Advisory TLSA-2004-7. See References.
For Trustix Secure Linux 1.5:
Upgrade to the latest kernel package (2.2.25-10tr or later), as listed in Trustix Secure Linux Security Advisory #2004-0008. See References.
For Mandrake Linux:
Upgrade to the latest kernel package, as listed below. Refer to MandrakeSoft Security Advisory MDKSA-2004:015 : kernel for more information. See References.
Mandrake Linux 9.0, Multi Network Firewall 8.2, and Corporate Server 2.1: 2.4.19.38mdk-1-1mdk or later
Mandrake Linux 9.1: 2.4.21.0.28mdk-1-1mdk or later
Mandrake Linux 9.2: 2.4.22.28mdk-1-1mdk or later
For Mandrake Linux:
Upgrade to the latest kernel package, as listed below. Refer to MandrakeSoft Security Advisory MDKSA-2004:015-1 : kernel for more information. See References.
Mandrake Linux Corporate Server 2.1: 2.4.19.38mdk-1-1mdk or later
For Immunix 7+:
Upgrade to the latest version of kernel (2.2.19-16_imnx_29 or later), as listed in Immunix Secured OS Security Advisory IMNX-2004-7+-001-01. See References.
For Gentoo Linux:
Upgrade to the appropriate package of kernel, as listed in GLSA 200403-02. See References.
For other distributions:
Contact your vendor for upgrade or patch information.
References:
- CIAC Information Bulletin O-082: Red Hat Updated Kernel Packages Resolve Security Vulnerabilities.
- CIAC Information Bulletin O-094: Linux mremap(2) System Call Vulnerability.
- CIAC Information Bulletin O-094: Linux mremap(2) System Call Vulnerability.
- CIAC Information Bulletin O-126: Red Hat Updated Kernel Packages Fix Several Vulnerabilities.
- Conectiva Linux Security Announcement CLSA-2004:820: kernel.
- Full-Disclosure Mailing List, Wed Feb 18 2004 - 06:01:50 CST: Second critical mremap() bug found in all Linux kernels.
- Immunix Secured OS Security Advisory IMNX-2004-7+-001-01: kernel. (From LinuxSecurity archive)
- Linux Kernel ChangeLog Web page: Summary of changes from v2.4.25-rc3 to v2.4.25-rc4.
- Linux Kernel Web site: The Linux Kernel Archives.
- slackware-security Mailing List, Wed, 18 Feb 2004 04:37:55 -0800 (PST): Kernel security update (SSA:2004-049-01).
- Trustix Secure Linux Security Advisory #2004-0008: kernel. (From LinuxSecurity archive)
- BID-9686: Linux Kernel do_mremap Function VMA Limit Local Privilege Escalation Vulnerability
- CVE-2004-0077: The do_mremap function for the mremap system call in Linux 2.2 to 2.2.25, 2.4 to 2.4.24, and 2.6 to 2.6.2, does not properly check the return value from the do_munmap function when the maximum number of VMA descriptors is exceeded, which allows local users to gain root privileges, a different vulnerability than CAN-2003-0985.
- DSA-438: linux-kernel-2.4.18-alpha+i386+powerpc -- missing function return value check
- DSA-439: linux-kernel-2.4.16-arm -- several vulnerabilities
- DSA-440: linux-kernel-2.4.17-powerpc-apus -- several vulnerabilities
- DSA-441: linux-kernel-2.4.17-mips+mipsel -- missing function return value check
- DSA-442: linux-kernel-2.4.17-s390 -- several vulnerabilities
- DSA-444: linux-kernel-2.4.17-ia64 -- missing function return value check
- DSA-450: linux-kernel-2.4.19-mips -- several vulnerabilities
- DSA-453: linux-kernel-2.2.20-i386+m68k+powerpc -- failing function and TLB flush
- DSA-454: linux-kernel-2.2.22-alpha -- failing function and TLB flush
- DSA-456: linux-kernel-2.2.19-arm -- failing function and TLB flush
- DSA-466: linux-kernel-2.2.10-powerpc-apus -- failing function and TLB flush
- DSA-470: linux-kernel-2.4.17-hppa -- several vulnerabilities
- DSA-475: linux-kernel-2.4.18-hppa -- several vulnerabilities
- DSA-514: kernel-image-sparc-2.2 -- failing function and TLB flush
- GLSA-200403-02: Linux kernel do_mremap local privilege escalation vulnerability
- MDKSA-2004:015: Updated kernel packages fix multiple vulnerabilities
- MDKSA-2004:015-1: Updated x86_64 kernel packages fix multiple vulnerabilities
- OSVDB ID: 3986: Linux kernel versions 2.2 to 2.2.25, 2.4 to 2.4.24, and 2.6 to 2.6.2 may allow a local user to gain root privileges, caused by a vulnerability in do_mremap function.
- RHSA-2004-065: Updated kernel packages resolve security vulnerabilities
- RHSA-2004-066: kernel security update
- RHSA-2004-069: kernel security update
- RHSA-2004-106: kernel security update
- SUSE-SA:2004:005: Linux Kernel: local privilege escalation
Platforms Affected:
- Conectiva Linux 8.0
- Conectiva Linux 9.0
- Debian Debian Linux 3.0
- Gentoo Linux
- Immunix Immunix OS 7+-beta
- Linux Kernel 2.2.0
- Linux Kernel 2.2.1
- Linux Kernel 2.2.10
- Linux Kernel 2.2.11
- Linux Kernel 2.2.12
- Linux Kernel 2.2.13
- Linux Kernel 2.2.14
- Linux Kernel 2.2.15 pre20
- Linux Kernel 2.2.15 pre16
- Linux Kernel 2.2.15
- Linux Kernel 2.2.16 pre6
- Linux Kernel 2.2.16
- Linux Kernel 2.2.18
- Linux Kernel 2.2.19
- Linux Kernel 2.2.2
- Linux Kernel 2.2.20
- Linux Kernel 2.2.21
- Linux Kernel 2.2.22
- Linux Kernel 2.2.23
- Linux Kernel 2.2.24
- Linux Kernel 2.2.3
- Linux Kernel 2.2.7
- Linux Kernel 2.2.8
- Linux Kernel 2.2.9
- Linux Kernel 2.4.0 test1
- Linux Kernel 2.4.0 test8
- Linux Kernel 2.4.0 test7
- Linux Kernel 2.4.0 test6
- Linux Kernel 2.4.0 test5
- Linux Kernel 2.4.0 test4
- Linux Kernel 2.4.0 test3
- Linux Kernel 2.4.0 test2
- Linux Kernel 2.4.0 test12
- Linux Kernel 2.4.0
- Linux Kernel 2.4.0 test9
- Linux Kernel 2.4.0 test10
- Linux Kernel 2.4.0 test11
- Linux Kernel 2.4.1
- Linux Kernel 2.4.10
- Linux Kernel 2.4.11
- Linux Kernel 2.4.12
- Linux Kernel 2.4.13
- Linux Kernel 2.4.14
- Linux Kernel 2.4.15
- Linux Kernel 2.4.16
- Linux Kernel 2.4.17
- Linux Kernel 2.4.18
- Linux Kernel 2.4.18 x86
- Linux Kernel 2.4.18 pre8
- Linux Kernel 2.4.18 pre7
- Linux Kernel 2.4.18 pre6
- Linux Kernel 2.4.18 pre5
- Linux Kernel 2.4.18 pre4
- Linux Kernel 2.4.18 pre3
- Linux Kernel 2.4.18 pre2
- Linux Kernel 2.4.18 pre1
- Linux Kernel 2.4.19 pre3
- Linux Kernel 2.4.19 pre4
- Linux Kernel 2.4.19 pre2
- Linux Kernel 2.4.19 pre1
- Linux Kernel 2.4.19
- Linux Kernel 2.4.19 pre6
- Linux Kernel 2.4.19 pre5
- Linux Kernel 2.4.2
- Linux Kernel 2.4.20
- Linux Kernel 2.4.21 pre4
- Linux Kernel 2.4.21 pre1
- Linux Kernel 2.4.21
- Linux Kernel 2.4.21 pre7
- Linux Kernel 2.4.22
- Linux Kernel 2.4.23 pre9
- Linux Kernel 2.4.23
- Linux Kernel 2.4.24
- Linux Kernel 2.4.3
- Linux Kernel 2.4.4
- Linux Kernel 2.4.5
- Linux Kernel 2.4.6
- Linux Kernel 2.4.7
- Linux Kernel 2.4.8
- Linux Kernel 2.4.9
- Linux Kernel 2.6.0 test9-cvs
- Linux Kernel 2.6.0 test9
- Linux Kernel 2.6.0 test8
- Linux Kernel 2.6.0 test7
- Linux Kernel 2.6.0 test6
- Linux Kernel 2.6.0 test5
- Linux Kernel 2.6.0 test4
- Linux Kernel 2.6.0 test3
- Linux Kernel 2.6.0 test2
- Linux Kernel 2.6.0 test11
- Linux Kernel 2.6.0 test10
- Linux Kernel 2.6.0 test1
- Linux Kernel 2.6.0
- Linux Kernel 2.6.1 rc2
- Linux Kernel 2.6.1 rc1
- Linux Kernel 2.6.4
- Linux Kernel 2.6.5
- Linux Kernel 2.6.6
- Linux Linux Kernel 2.2.17
- Linux Linux Kernel 2.6.2
- MandrakeSoft Mandrake Linux 9.0
- MandrakeSoft Mandrake Linux 9.1 PPC
- MandrakeSoft Mandrake Linux 9.1
- MandrakeSoft Mandrake Linux 9.2
- MandrakeSoft Mandrake Linux 9.2 AMD64
- MandrakeSoft Mandrake Linux Corporate Server 2.1 X86_64
- MandrakeSoft Mandrake Linux Corporate Server 2.1
- MandrakeSoft Mandrake Multi Network Firewall 8.2
- Novell SuSE Linux Enterprise Server 7.0
- RedHat bigmem kernel 2.4.20-8 i686
- RedHat Enterprise Linux 2.1 AS
- RedHat Enterprise Linux 2.1 ES
- RedHat Enterprise Linux 2.1 WS
- RedHat Enterprise Linux 2.1 AW
- RedHat Enterprise Linux 3 ES
- RedHat Enterprise Linux 3 AS
- RedHat Enterprise Linux 3 WS
- RedHat kernel 2.4.20-8 Athlon SMP
- RedHat kernel 2.4.20-8 i686 SMP
- RedHat kernel boot 2.4.20-8 i386
- RedHat kernel doc 2.4.20-8 i386
- RedHat Linux 9.0
- RedHat Linux Advanced Workstation 2.1 Itanium
- Slackware Slackware Linux 9.1
- Slackware Slackware Linux current
- SuSE Linux Enterprise Server 8
- SuSE SuSE eMail Server 3.1
- SuSE SuSE eMail Server III
- SUSE SuSE Linux 8.0
- SUSE SuSE Linux 8.1
- SUSE SuSE Linux 8.2
- SUSE SuSE Linux 9.0
- SuSE SuSE Linux Connectivity Server
- SuSE SuSE Linux Database Server
- SuSE SuSE Linux Firewall
- SuSE SuSE Linux Office Server
- Trustix Secure Linux 1.5
- Turbolinux Turbolinux 7 Server
- Turbolinux Turbolinux 7 Workstation
- Turbolinux Turbolinux 8 Server
- Turbolinux Turbolinux 8 Workstation
Reported:
Feb 18, 2004
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