CVE-2015-5312
libxml2: CPU exhaustion when processing specially crafted XML input
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
The xmlStringLenDecodeEntities function in parser.c in libxml2 before 2.9.3 does not properly prevent entity expansion, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted XML data, a different vulnerability than CVE-2014-3660.
La función xmlStringLenDecodeEntities en parser.c en libxml2 en versiones anteriores a 2.9.3 no previene adecuadamente la expansión de entidad, lo que permite a atacantes dependientes del contexto causar una denegación de servicio (consumo de CPU) a través de datos XML manipulados, una vulnerabilidad diferente a CVE-2014-3660.
A denial of service flaw was found in libxml2. A remote attacker could provide a specially crafted XML or HTML file that, when processed by an application using libxml2, would cause that application to use an excessive amount of CPU.
Kostya Serebryany discovered that libxml2 incorrectly handled certain malformed documents. If a user or automated system were tricked into opening a specially crafted document, an attacker could possibly cause libxml2 to crash, resulting in a denial of service. CVE-2015-7497,CVE-2015-7498, CVE-2015-7499, Hugh Davenport discovered that libxml2 incorrectly handled certain malformed documents. If a user or automated system were tricked into opening a specially crafted document, an attacker could possibly cause libxml2 to crash, resulting in a denial of service. Various other issues were also addressed.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2015-07-01 CVE Reserved
- 2015-12-07 CVE Published
- 2024-08-06 CVE Updated
- 2025-04-02 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-399: Resource Management Errors
CAPEC
References (26)
| URL | Tag | Source |
|---|---|---|
| http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html | X_refsource_confirm |
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| http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html | X_refsource_confirm |
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| http://www.securityfocus.com/bid/79536 | Vdb Entry | |
| http://www.securitytracker.com/id/1034243 | Vdb Entry | |
| https://git.gnome.org/browse/libxml2/commit/?id=69030714cde66d525a8884bda01b9e8f0abf8e1e | X_refsource_confirm | |
| https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04944172 | Third Party Advisory |
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Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
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| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 12.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "12.04" | lts |
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| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 14.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04" | lts |
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| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 15.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "15.04" | - |
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| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 15.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "15.10" | - |
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| Redhat Search vendor "Redhat" | Enterprise Linux Desktop Search vendor "Redhat" for product "Enterprise Linux Desktop" | 6.0 Search vendor "Redhat" for product "Enterprise Linux Desktop" and version "6.0" | - |
Affected
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| Redhat Search vendor "Redhat" | Enterprise Linux Hpc Node Search vendor "Redhat" for product "Enterprise Linux Hpc Node" | 6.0 Search vendor "Redhat" for product "Enterprise Linux Hpc Node" and version "6.0" | - |
Affected
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| Redhat Search vendor "Redhat" | Enterprise Linux Server Search vendor "Redhat" for product "Enterprise Linux Server" | 6.0 Search vendor "Redhat" for product "Enterprise Linux Server" and version "6.0" | - |
Affected
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| Redhat Search vendor "Redhat" | Enterprise Linux Workstation Search vendor "Redhat" for product "Enterprise Linux Workstation" | 6.0 Search vendor "Redhat" for product "Enterprise Linux Workstation" and version "6.0" | - |
Affected
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| Apple Search vendor "Apple" | Iphone Os Search vendor "Apple" for product "Iphone Os" | <= 9.2.1 Search vendor "Apple" for product "Iphone Os" and version " <= 9.2.1" | - |
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| Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | <= 10.11.3 Search vendor "Apple" for product "Mac Os X" and version " <= 10.11.3" | - |
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| Apple Search vendor "Apple" | Tvos Search vendor "Apple" for product "Tvos" | <= 9.1 Search vendor "Apple" for product "Tvos" and version " <= 9.1" | - |
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| Apple Search vendor "Apple" | Watchos Search vendor "Apple" for product "Watchos" | <= 2.1 Search vendor "Apple" for product "Watchos" and version " <= 2.1" | - |
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| Xmlsoft Search vendor "Xmlsoft" | Libxml2 Search vendor "Xmlsoft" for product "Libxml2" | <= 2.9.2 Search vendor "Xmlsoft" for product "Libxml2" and version " <= 2.9.2" | - |
Affected
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| Hp Search vendor "Hp" | Icewall Federation Agent Search vendor "Hp" for product "Icewall Federation Agent" | 3.0 Search vendor "Hp" for product "Icewall Federation Agent" and version "3.0" | - |
Affected
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| Hp Search vendor "Hp" | Icewall File Manager Search vendor "Hp" for product "Icewall File Manager" | 3.0 Search vendor "Hp" for product "Icewall File Manager" and version "3.0" | - |
Affected
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| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 7.0 Search vendor "Debian" for product "Debian Linux" and version "7.0" | - |
Affected
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| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0" | - |
Affected
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