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Gentoo Linux Security Advisory GLSA 200403-01 |
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~ http://security.gentoo.org |
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~ Severity: Normal |
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~ Title: Libxml2 URI Parsing Buffer Overflow Vulnerabilities |
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~ Date: March 06, 2004 |
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~ Bugs: #42735 |
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~ ID: 200403-01 |
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Synopsis |
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======== |
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|
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A buffer overflow has been discovered in libxml2 versions prior to |
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2.6.6 which may be exploited by an attacker allowing the execution of |
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arbitrary code. |
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|
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Description |
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=========== |
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|
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Yuuichi Teranishi discovered a flaw in libxml2 versions prior to 2.6.6. |
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When the libxml2 library fetches a remote resource via FTP or HTTP, |
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libxml2 uses parsing routines that can overflow a buffer caused by |
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improper bounds checking if they are passed a URL longer than 4096 |
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bytes. |
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Impact |
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====== |
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|
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If an attacker is able to exploit an application using libxml2 that |
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parses remote resources, then this flaw could be used to execute |
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arbitrary code. |
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Workaround |
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========== |
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|
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No workaround is available; users are urged to upgrade libxml2 to |
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2.6.6. |
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Resolution |
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========== |
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All users are recommended to upgrade their libxml2 installation: |
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|
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~ # emerge sync |
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~ # emerge -pv ">=dev-libs/libxml2-2.6.6" |
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~ # emerge ">=dev-libs/libxml2-2.6.6" |
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|
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References |
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========== |
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|
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~ [ 1 ] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0110 |
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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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