The xmlParseConditionalSections function in parser.c in libxml2 does not properly skip intermediary entities when it stops parsing invalid…

Description

The xmlParseConditionalSections function in parser.c in libxml2 does not properly skip intermediary entities when it stops parsing invalid input, which allows context-dependent attackers to cause a denial of service (out-of-bounds read and crash) via crafted XML data, a different vulnerability than CVE-2015-7941.

Scores

EPSS (exploitation in 30 days)

4.5% · top 8.5% of all CVEs (4 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.8.

Weakness

• n/a
• CWE-119 (opens in a new tab)All about CWE-119 and its CVEs

Affected products

• n/a

  • affected n/a

References (29)

• RHSA-2015:2550 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• APPLE-SA-2016-03-21-5 (opens in a new tab)vendor-advisoryx_refsource_APPLEx_transferred
• openSUSE-SU-2016:0106 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• https://support.apple.com/HT206167 (opens in a new tab)x_refsource_CONFIRMx_transferred
• https://support.apple.com/HT206168 (opens in a new tab)x_refsource_CONFIRMx_transferred
• https://bugzilla.gnome.org/show_bug.cgi?id=744980#c8 (opens in a new tab)x_refsource_CONFIRMx_transferred
• [oss-security] 20151022 Crafted xml causes out of bound memory access - Libxml2 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• DSA-3430 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
• 79507 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
• APPLE-SA-2016-03-21-1 (opens in a new tab)vendor-advisoryx_refsource_APPLEx_transferred
• http://xmlsoft.org/news.html (opens in a new tab)x_refsource_CONFIRMx_transferred
• FEDORA-2016-a9ee80b01d (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
• RHSA-2016:1089 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html (opens in a new tab)x_refsource_CONFIRMx_transferred
• http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html (opens in a new tab)x_refsource_CONFIRMx_transferred
• APPLE-SA-2016-03-21-2 (opens in a new tab)vendor-advisoryx_refsource_APPLEx_transferred
• 1034243 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
• RHSA-2015:2549 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• USN-2812-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• HPSBGN03537 (opens in a new tab)vendor-advisoryx_refsource_HPx_transferred
• FEDORA-2016-189a7bf68c (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
• https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04944172 (opens in a new tab)x_refsource_CONFIRMx_transferred
• GLSA-201701-37 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
• openSUSE-SU-2015:2372 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• https://bugzilla.gnome.org/show_bug.cgi?id=756456 (opens in a new tab)x_refsource_CONFIRMx_transferred
• [oss-security] 20151022 Re: Crafted xml causes out of bound memory access - Libxml2 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• APPLE-SA-2016-03-21-3 (opens in a new tab)vendor-advisoryx_refsource_APPLEx_transferred
• https://support.apple.com/HT206169 (opens in a new tab)x_refsource_CONFIRMx_transferred
• https://support.apple.com/HT206166 (opens in a new tab)x_refsource_CONFIRMx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2015-7942](https://trackcve.app/badge/CVE-2015-7942.svg)](https://trackcve.app/cve/CVE-2015-7942)

Record last updated 6 Aug 2024, 08:06 UTC.