Linux kernel RTC memory link
| linux-rtc-memory-leak (13943) |  Medium Risk |
Description:
Linux kernel could allow a remote attacker to obtain sensitive information, caused by a vulnerability when handling Real Time Clock (RTC) routines.
Platforms Affected:
- Debian, Debian Linux 3.0
- Linux, Kernel 2.4.0 test11
- Linux, Kernel 2.4.0 test10
- Linux, Kernel 2.4.0 test1
- Linux, Kernel 2.4.0
- Linux, Kernel 2.4.0 test2
- Linux, Kernel 2.4.0 test12
- Linux, Kernel 2.4.0 test9
- 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 2.4.1
- 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 pre5
- Linux, Kernel 2.4.18
- Linux, Kernel 2.4.18 x86
- 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 2.4.18 pre6
- Linux, Kernel 2.4.18 pre8
- Linux, Kernel 2.4.18 pre7
- Linux, Kernel 2.4.19
- Linux, Kernel 2.4.19 pre1
- Linux, Kernel 2.4.19 pre2
- Linux, Kernel 2.4.19 pre3
- Linux, Kernel 2.4.19 pre4
- Linux, Kernel 2.4.19 pre5
- Linux, Kernel 2.4.19 pre6
- Linux, Kernel 2.4.2
- Linux, Kernel 2.4.20
- Linux, Kernel 2.4.21
- Linux, Kernel 2.4.21 pre1
- Linux, Kernel 2.4.21 pre4
- Linux, Kernel 2.4.21 pre7
- Linux, Kernel 2.4.22
- 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 PPC
- MandrakeSoft, Mandrake Linux 9.1
- MandrakeSoft, Mandrake Linux 9.2
- MandrakeSoft, Mandrake Linux 9.2 AMD64
- MandrakeSoft, Mandrake Linux Corporate Server 2.1
- MandrakeSoft, Mandrake Linux Corporate Server 2.1 X86_64
- MandrakeSoft, Mandrake Multi Network Firewall 8.2
- RedHat, Enterprise Linux 3 AS
- RedHat, Enterprise Linux 3 ES
- RedHat, Enterprise Linux 3 WS
- RedHat, Linux 7.1
- RedHat, Linux 7.2
- RedHat, Linux 7.3
- RedHat, Linux 8.0
- RedHat, Linux 9.0
- SmoothWall, SmoothWall Express 2.0
- SuSE, SuSE eMail Server 3.1
- SuSE, SuSE eMail Server III
- SuSE, SuSE Linux 7.3
- 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 Enterprise Server 7.0
- SuSE, SuSE Linux Firewall
- SuSE, SuSE Linux Office Server
- SuSE, SuSE Linux School Server
- Turbolinux, Turbolinux 10 Desktop
- Turbolinux, Turbolinux 7 Server
- Turbolinux, Turbolinux 7 Workstation
- Turbolinux, Turbolinux 8 Server
- Turbolinux, Turbolinux 8 Workstation
- Turbolinux, Turbolinux Appliance Server 1.0
- Turbolinux, Turbolinux Appliance Server 1.0 Hosting Ed
- Turbolinux, Turbolinux Appliance Server 1.0 Workgroup Ed
Remedy:
For SuSE Linux:
Upgrade to the latest kernel package, as listed below. Refer to SuSE Security Advisory SuSE-SA:2003:049 for more information. See References.
SuSE Linux 9.0 (Intel): 2.4.21-144 or later
SuSE Linux 8.2: 2.4.20-101 or later
SuSE Linux 8.1: 2.4.21-151 or later
SuSE Linux 8.0 and 7.3: 2.4.18-281 or later
SuSE Linux 9.0 (x86_64): 2.4.21-149 or later
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 Linux 7.1, 7.2, and 7.3: 2.4.20-28.7 or later
Red Hat Linux 8.0: 2.4.20-28.8 or later
Red Hat Linux 9: 2.4.20-28.9 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 Turbolinux:
Upgrade to the latest kernel package, as listed below. Refer to Turbolinux Security Advisory TLSA-2004-14 for more information. See References.
Turbolinux Appliance Server 1.0 Hosting Edition: 2.4.25-3 or later
Turbolinux 10 Desktop: 2.6.0-8 or later
Turbolinux 8 Server or Workstation: 2.4.18-19 or later
Turbolinux 7 Server or Workstation: 2.4.18-19 or later
For Debian GNU/Linux:
Refer to DSA-1070-1, DSA-1069-1, DSA-1067-1, or DSA-1082-1 for patch, upgrade, or suggested workaround information. See References.
For other distributions:
Contact your vendor for upgrade or patch information.
Consequences:
Obtain Information
References:
- CIAC Information Bulletin O-045, Red Hat 'mremap()' function Vulnerability at http://www.ciac.org/ciac/bulletins/o-045.shtml.
- CIAC Information Bulletin O-145, Red Hat Updated Kernel Packages for Enterprise Linux 3 at http://www.ciac.org/ciac/bulletins/o-145.shtml.
- 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.
- BID-9154: Linux Kernel 2.4 RTC Handling Routines Memory Disclosure Vulnerability
- CVE-2003-0984: Real time clock (RTC) routines in Linux kernel 2.4.23 and earlier do not properly initialize their structures, which could leak kernel data to user space.
- DSA-1067: kernel-source-2.4.16 -- several vulnerabilities
- DSA-1069: kernel-source-2.4.18 -- several vulnerabilities
- DSA-1070: kernel-source-2.4.19 -- several vulnerabilities
- DSA-1082: kernel-source-2.4.17 -- several vulnerabilities
- MDKSA-2004:001: Updated kernel packages fix local root vulnerability
- OSVDB ID: 3317: Linux Kernel Real Time Clock Kernel Memory Disclosure
- RHSA-2003-417: Updated kernel resolves security vulnerability
- RHSA-2004-188: Updated kernel packages available for Red Hat Enterprise Linux 3 Update 2
- SA10533: Linux Kernel Real Time Clock Kernel Memory Disclosure Vulnerability
- SECTRACK ID: 1008594: Linux Kernel Real-time Clock Routines May Leak Kernel Data to User Applications
Reported:
Dec 04, 2003
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