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CVE-2015-7942
The xmlParseConditionalSections function in parser.c in libxml2 does not properly skip intermediary entities when it stops parsing invalid…
- 6.8MediumCVSS base score
- 4.5%Exploitation in 30 daysEPSS · top 8.5% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By mitre
- 27 days later
· 27 days later
Published
- 9 years later
· 9 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
- EPSS (exploitation in 30 days)
- 4.5% · top 8.5% of all CVEs (10 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.8.
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)
- EUVD EUVD-2015-7839 (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)
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[](https://cveledger.app/cve/CVE-2015-7942)Record last updated .