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Gentoo Linux Security Advisory GLSA 200403-12 |
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http://security.gentoo.org |
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Severity: Normal |
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Title: OpenLDAP DoS Vulnerability |
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Date: March 31, 2004 |
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Bugs: #26728 |
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ID: 200403-12 |
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Synopsis |
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======== |
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|
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A failed password operation can cause the OpenLDAP slapd server, if it |
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is using the back-ldbm backend, to free memory that was never |
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allocated. |
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Background |
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========== |
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|
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OpenLDAP is a suite of LDAP-related application and development tools. |
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It includes slapd (the standalone LDAP server), slurpd (the standalone |
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LDAP replication server), and various LDAP libraries, utilities and |
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example clients. |
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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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net-nds/openldap <= 2.1.12 >= 2.1.13 |
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|
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Description |
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=========== |
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|
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A password extended operation (password EXOP) which fails will cause |
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the slapd server to free() an uninitialized pointer, possibly resulting |
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in a segfault. This only affects servers using the back-ldbm backend. |
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|
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Such a crash is not guaranteed with every failed operation, however, it |
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is possible. |
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|
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Impact |
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====== |
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|
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An attacker (or indeed, a normal user) may crash the OpenLDAP server, |
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creating a Denial of Service condition. |
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|
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Workaround |
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========== |
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A workaround is not currently known for this issue. All users are |
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advised to upgrade to the latest version of the affected package. |
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Resolution |
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========== |
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OpenLDAP users should upgrade to version 2.1.13 or later: |
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# emerge sync |
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# emerge -pv ">=net-nds/openldap-2.1.13" |
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# emerge ">=net-nds/openldap-2.1.13" |
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|
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References |
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========== |
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|
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[ 1 ] http://www.openldap.org/its/index.cgi?findid=2390 |
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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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