Linux kernel do_mremap allows elevated privileges
| linux-domremap-gain-privileges (14135) |  High Risk |
Description:
Linux kernel could allow a local attacker to gain elevated privileges, caused by improper bounds checking of the memory management code that performs the remapping of a virtual memory area in the do_mremap function. A local attacker could create a malicious VMA to exploit this vulnerability and execute arbitrary code on the vulnerable system with privileges of the kernel process.
Platforms Affected:
- Conectiva, Linux 8.0
- Conectiva, Linux 9.0
- Debian, Debian Linux 3.0
- EngardeLinux, Secure Community 2.0
- EngardeLinux, Secure Professional 1.5
- FedoraProject, Fedora Core 1
- Gentoo, Linux
- Immunix, Immunix OS 7.3
- 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 pre1
- Linux, Kernel 2.4.19 pre2
- Linux, Kernel 2.4.19
- Linux, Kernel 2.4.19 pre6
- Linux, Kernel 2.4.19 pre5
- Linux, Kernel 2.4.19 pre4
- Linux, Kernel 2.4.19 pre3
- Linux, Kernel 2.4.2
- Linux, Kernel 2.4.20
- Linux, Kernel 2.4.21 pre4
- Linux, Kernel 2.4.21 pre7
- Linux, Kernel 2.4.21 pre1
- Linux, Kernel 2.4.21
- Linux, Kernel 2.4.22
- Linux, Kernel 2.4.23
- 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
- MandrakeSoft, Mandrake Linux 9.0
- MandrakeSoft, Mandrake Linux 9.1
- MandrakeSoft, Mandrake Linux 9.1 PPC
- 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
- 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 WS
- RedHat, Enterprise Linux 3 ES
- RedHat, Enterprise Linux 3 AS
- RedHat, Linux 7.1
- RedHat, Linux 7.2
- RedHat, Linux 7.3
- RedHat, Linux 8.0
- RedHat, Linux 9.0
- RedHat, Linux Advanced Workstation 2.1 Itanium
- SGI, IRIX 2.3
- Slackware, Slackware Linux 9.0
- Slackware, Slackware Linux 9.1
- Slackware, Slackware Linux current
- SmoothWall, SmoothWall Express 2.0
- 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 Database Server
- SuSE, SuSE Linux Desktop 1.0
- SuSE, SuSE Linux Enterprise Server 7.0
- SuSE, SuSE Linux Enterprise Server 8.0
- SuSE, SuSE Linux Firewall
- SuSE, SuSE Linux Office Server
- SuSE, SuSE Linux School Server
- Trustix, Secure Linux 2.0
- Turbolinux, Turbolinux 10 Desktop
- Turbolinux, Turbolinux 7 Server
- Turbolinux, Turbolinux 7 Workstation
- Turbolinux, Turbolinux 8 Server
- Turbolinux, Turbolinux 8 Workstation
Remedy:
For Red Hat Linux:
Upgrade to the latest kernel package, as listed below. Refer to RHSA-2003:417-08 for more information. See References.
Red Hat 7.1, 7.2, and 7.3: 2.4.20-28.7 or later
Red Hat 8.0: 2.4.20-28.8 or later
Red Hat 9: 2.4.20-28.9 or later
For Red Hat Linux containing the kernel package:
Upgrade to the latest kernel package, as listed below. Refer to RHSA-2003:418-04 for more information. See References.
Red Hat Linux Advanced Workstation 2.1 for the Itanium Processor: 2.4.18-e.41 or later
For Red Hat Linux containing the kernel package:
Upgrade to the latest kernel package, as listed below. Refer to RHSA-2003:419-06 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.35 or later
For Conectiva Linux:
Upgrade to the latest kernel package, as listed below. Refer to Conectiva Linux Security Announcement CLSA-2004:799 for more information. See References.
Conectiva Linux 8: 2.4.19-1U80_20cl or later
Conectiva Linux 9: 2.4.21-31301U90_13cl or later
For Trustix Secure Linux 2.0:
Upgrade to the latest kernel package (2.4.23-3tr or later), as listed in Trustix Secure Linux Security Advisory #2004-0001. See References.
For EnGarde Secure Linux Community Edition and Professional Edition:
Apply the update for this vulnerability, as listed in Guardian Digital Security Advisory ESA-20040105-001. See References.
For SuSE Linux:
Upgrade to the latest kernel package, as listed below. Refer to SuSE Security Announcement SuSE-SA:2004:001 for more information. See References.
SuSE Linux 9.0 (Intel): 2.4.20 or later
SuSE Linux 8.0 and 8.1: 2.4.18 or later
SuSE Linux 9.0 (x86_64): 2.4.21-17 or later
For Fedora Core:
Upgrade to the latest kernel package, as listed below. Refer to Fedora Security Update Notification FEDORA-2003-046 for more information. See References.
Fedora Core 1: 2.4.22-1.2138 or later
For Immunix OS 7.3:
Upgrade to the latest version of kernel (2.4.20-20_imnx_11 or later), as listed in Immunix OS Security Advisory IMNX-2004-73-001-01. See References.
For Turbolinux:
Upgrade to the latest kernel package, as listed below. Refer to Turbolinux Security Advisory TLSA-2004-1 for more information. See References.
Turbolinux 10 Desktop: 2.6.0-1 or later
Turbolinux 8 Server, 8 Workstation, 7 Server, and 7 Workstation: 2.4.18-16 or later
For Debian GNU/Linux 3.0 (woody):
Upgrade to the latest kernel package (2.4.18-14.1, 2.4.18-1alpha_2.4.18-12 or 2.4.18_2.4.18-1woody3 or later), as listed in DSA-417-1. See References.
For Debian GNU/Linux 3.0 (woody) containing the kernel-image-2.4.17-ia64 package:
Upgrade to the latest kernel-image-2.4.17-ia64 package (011226.15 or later), as listed in DSA-423-1. See References.
For Debian GNU/Linux 3.0 (woody) containing the kernel-image-2.4.17 package:
Upgrade to the latest kernel-image-2.4.17 package (2.4.17-0.020226.2.woody3 or later), as listed in DSA-427-1. See References.
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 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-2.4.17 package:
Upgrade to the latest kernel package (2.4.16-20040204 or later), as listed in DSA-439-1. 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 (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 Slackware Linux:
Upgrade to the latest kernel package, as listed below. Refer to slackware-security Mailing List, Tue, 6 Jan 2004 20:00:02 -0800 (PST) for more information. See References.
Slackware Linux 9.0: 2.4.21-i486-3 or later
Slackware Linux 9.1 and -current: 2.4.24-i486-1 or later
For Mandrake Linux:
Upgrade to the latest kernel package, as listed below. Refer to MandrakeSoft Security Advisory MDKSA-2004:001 : kernel for more information. See References.
Mandrake Linux 9.0 and Multi Network Firewall 8.2: 2.4.19.37mdk-1-1mdk or later
Mandrake Linux 9.1: 2.4.21.0.27mdk-1-1mdk or later
Mandrake Linux 9.2: 2.4.22.26mdk-1-1mdk or later
Mandrake Linux Coporate Server 2.1: 2.4.19.34mdk-1-1mdk or later
For SmoothWall Express 2.0:
Apply the SmoothWall Express 2.0 fixes1 patch, as listed in SmoothWall Project Security Advisory SWP-2004:001. See References.
For SGI IRIX:
Apply the 10042 patch for this vulnerability, as listed in SGI Security Advisory 20040102-01-U. See References.
For Gentoo Linux:
Upgrade to the latest package, as listed in GLSA 200402-06. 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.
Consequences:
Gain Privileges
References:
- BugTraq Mailing List, Thu Jan 15 2004 - 09:38:33 CST, Linux kernel mremap() bug update at http://archives.neohapsis.com/archives/bugtraq/2004-01/0114.html.
- BugTraq Mailing List, Tue Jan 06 2004 - 10:30:35 CST, Linux mremap bug correction at http://archives.neohapsis.com/archives/bugtraq/2004-01/0038.html.
- CIAC Information Bulletin O-045, Red Hat 'mremap()' function Vulnerability at http://www.ciac.org/ciac/bulletins/o-045.shtml.
- CIAC Information Bulletin O-059, Debian Linux-Kernel-2.4.14-ia64 Vulnerabilities at http://www.ciac.org/ciac/bulletins/o-059.shtml.
- CIAC Information Bulletin O-063, Red Hat Elevated Privileges Vulnerability at http://www.ciac.org/ciac/bulletins/o-063.shtml.
- Conectiva Linux Security Announcement CLSA-2004:799, kernel at http://distro.conectiva.com/atualizacoes/index.php?id=a&anuncio=000799.
- Fedora Security Update Notification FEDORA-2003-046, kernel at http://www.linuxsecurity.com/content/view/105626/102/. (From LinuxSecurity archive)
- GLSA 200402-06, Linux kernel AMD64 ptrace vulnerability at http://www.linuxsecurity.com/content/view/105738/104/. (From LinuxSecurity archive)
- Immunix OS Security Advisory IMNX-2004-73-001-01, kernel at http://www.linuxsecurity.com/content/view/105627/105/. (From LinuxSecurity archive)
- SGI Security Advisory 20040102-01-U, SGI ProPack v2.3: Kernel fixes and security update at ftp://patches.sgi.com/support/free/security/advisories/20040102-01-U.asc.
- slackware-security Mailing List, Tue, 6 Jan 2004 20:00:02 -0800 (PST), Kernel security update (SSA:2004-006-01) at http://www.slackware.org/security/viewer.php?l=slackware-security&y=2004&m=slackware-security.757729.
- SmoothWall Project Security Advisory SWP-2004:001, Updates for SmoothWall Express to correct local vulnerabilities in Linux kernel at http://smoothwall.org/security/advisories/SWP-2004.001.html.
- Trustix Secure Linux Security Advisory #2004-0001, kernel at http://www.linuxsecurity.com/content/view/105623/109/. (From LinuxSecurity archive)
- VulnWatch Mailing List, Mon Jan 05 2004 - 06:30:32 CST, Linux kernel mremap vulnerability at http://archives.neohapsis.com/archives/vulnwatch/2004-q1/0005.html.
- VulnWatch Mailing List, Mon Jan 05 2004 - 07:04:50 CST, Re: Linux kernel mremap vulnerability at http://archives.neohapsis.com/archives/vulnwatch/2004-q1/0006.html.
- BID-18177: Linux Kernel MREMAP Local Privilege Escalation Vulnerability
- BID-9356: Linux Kernel do_mremap Function Boundary Condition Vulnerability
- CVE-2003-0985: The mremap system call (do_mremap) in Linux kernel 2.4.x before 2.4.21, and possibly other versions before 2.4.24, does not properly perform bounds checks, which allows local users to cause a denial of service and possibly gain privileges by causing a remapping of a virtual memory area (VMA) to create a zero length VMA, a different vulnerability than CAN-2004-0077.
- DSA-413: linux-kernel-2.4.18 -- missing boundary check
- DSA-417: linux-kernel-2.4.18-powerpc+alpha -- missing boundary check
- DSA-423: linux-kernel-2.4.17-ia64 -- several vulnerabilities
- DSA-427: linux-kernel-2.4.17-mips+mipsel -- missing boundary check
- DSA-439: linux-kernel-2.4.16-arm -- several vulnerabilities
- DSA-440: linux-kernel-2.4.17-powerpc-apus -- several vulnerabilities
- DSA-442: linux-kernel-2.4.17-s390 -- several vulnerabilities
- DSA-450: linux-kernel-2.4.19-mips -- several vulnerabilities
- DSA-470: linux-kernel-2.4.17-hppa -- several vulnerabilities
- DSA-475: linux-kernel-2.4.18-hppa -- several vulnerabilities
- GLSA-200401-01: Linux kernel do_mremap() local privilege escalation vulnerability
- MDKSA-2004:001: Updated kernel packages fix local root vulnerability
- OSVDB ID: 3315: Linux Kernel do_mremap() Privilege Escalation
- RHSA-2003-416: kernel security update
- RHSA-2003-417: Updated kernel resolves security vulnerability
- RHSA-2003-418: kernel security update
- RHSA-2003-419: kernel security update
- SA10532: Linux Kernel "mremap()" Privilege Escalation Vulnerability
- SECTRACK ID: 1009342: (Gentoo Issues Fix) Linux Kernel do_mremap() Fails to Check do_munmap() Return Values, Allowing a Local User to Gain Root Privileges
- SECTRACK ID: 1009629: (Debian Issues Fix for HPPA) Linux Kernel mremap() Improper Bounds Checking Lets Local Users Gain Root Privileges
- SECTRACK ID: 1009637: (VMware Issues Fix) Linux Kernel mremap() Improper Bounds Checking Lets Local Users Gain Root Privileges
- SECTRACK ID: 1009671: (Debian Issues Fix for 2.4.18 HPPA) Linux Kernel mremap() Improper Bounds Checking Lets Local Users Gain Root Privileges
- SUSE-SA:2004:001: Linux Kernel: local system compromise
- SUSE-SA:2004:003: Linux Kernel (x86_64 AMD64): local system compromise
Reported:
Jan 05, 2004
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