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Gentoo Linux Security Advisory GLSA 200907-08 |
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http://security.gentoo.org/ |
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|
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Severity: High |
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Title: Multiple Ralink wireless drivers: Execution of arbitrary |
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code |
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Date: July 12, 2009 |
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Bugs: #257023 |
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ID: 200907-08 |
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|
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Synopsis |
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======== |
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|
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An integer overflow in multiple Ralink wireless drivers might lead to |
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the execution of arbitrary code with elevated privileges. |
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|
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Background |
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========== |
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|
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All listed packages are external kernel modules that provide drivers |
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for multiple Ralink devices. ralink-rt61 is released by ralinktech.com, |
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the other packages by the rt2x00.serialmonkey.com project. |
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|
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Affected packages |
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================= |
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|
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------------------------------------------------------------------- |
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Package / Vulnerable / Unaffected |
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------------------------------------------------------------------- |
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1 rt2400 <= 1.2.2_beta3 Vulnerable! |
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2 rt2500 <= 1.1.0_pre2007071515 Vulnerable! |
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3 rt2570 <= 20070209 Vulnerable! |
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4 rt61 <= 1.1.0_beta2 Vulnerable! |
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5 ralink-rt61 <= 1.1.1.0 Vulnerable! |
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------------------------------------------------------------------- |
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NOTE: Certain packages are still vulnerable. Users should migrate |
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to another package if one is available or wait for the |
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existing packages to be marked stable by their |
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architecture maintainers. |
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------------------------------------------------------------------- |
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5 affected packages on all of their supported architectures. |
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------------------------------------------------------------------- |
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|
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Description |
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=========== |
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|
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Aviv reported an integer overflow in multiple Ralink wireless card |
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drivers when processing a probe request packet with a long SSID, |
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possibly related to an integer signedness error. |
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|
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Impact |
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====== |
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|
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A physically proximate attacker could send specially crafted packets to |
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a user who has wireless networking enabled, possibly resulting in the |
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execution of arbitrary code with root privileges. |
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|
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Workaround |
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========== |
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|
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Unload the kernel modules. |
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|
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Resolution |
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========== |
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|
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All external kernel modules have been masked and we recommend that |
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users unmerge those drivers. The Linux mainline kernel has equivalent |
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support for these devices and the vulnerability has been resolved in |
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stable versions of sys-kernel/gentoo-sources. |
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|
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# emerge --unmerge "net-wireless/rt2400" |
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# emerge --unmerge "net-wireless/rt2500" |
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# emerge --unmerge "net-wireless/rt2570" |
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# emerge --unmerge "net-wireless/rt61" |
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# emerge --unmerge "net-wireless/ralink-rt61" |
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|
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References |
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========== |
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|
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[ 1 ] CVE-2009-0282 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0282 |
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|
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Availability |
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============ |
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|
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This GLSA and any updates to it are available for viewing at |
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the Gentoo Security Website: |
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|
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http://security.gentoo.org/glsa/glsa-200907-08.xml |
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|
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Concerns? |
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========= |
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|
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Security is a primary focus of Gentoo Linux and ensuring the |
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confidentiality and security of our users machines is of utmost |
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importance to us. Any security concerns should be addressed to |
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security@g.o or alternatively, you may file a bug at |
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http://bugs.gentoo.org. |
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|
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License |
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======= |
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|
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Copyright 2009 Gentoo Foundation, Inc; referenced text |
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belongs to its owner(s). |
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|
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The contents of this document are licensed under the |
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Creative Commons - Attribution / Share Alike license. |
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|
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http://creativecommons.org/licenses/by-sa/2.5 |