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CVE-2019-15903
In libexpat before 2.2.8, crafted XML input could fool the parser into changing from DTD parsing to document parsing too early; a…
Medium6.5EPSS 6.6%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
In libexpat before 2.2.8, crafted XML input could fool the parser into changing from DTD parsing to document parsing too early; a consecutive call to XML_GetCurrentLineNumber (or XML_GetCurrentColumnNumber) then resulted in a heap-based buffer over-read.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | Medium6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
| NVDNVD · Modified | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 6.6% · top 6.1% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.5.
Weakness
Affected products
n/a
- affected n/a
References (60)
- USN-4132-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- 20190917 [slackware-security] expat (SSA:2019-259-01) (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- USN-4132-2 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- FEDORA-2019-613edfe68b (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- DSA-4530 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- 20190923 [SECURITY] [DSA 4530-1] expat security update (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- FEDORA-2019-9505c6b555 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- openSUSE-SU-2019:2205 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- openSUSE-SU-2019:2204 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- FEDORA-2019-672ae0f060 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- 20191021 [slackware-security] python (SSA:2019-293-01) (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- USN-4165-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- DSA-4549 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- RHSA-2019:3210 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2019:3237 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 20191101 [SECURITY] [DSA 4549-1] firefox-esr security update (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- openSUSE-SU-2019:2420 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- openSUSE-SU-2019:2424 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- openSUSE-SU-2019:2425 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- RHSA-2019:3756 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- openSUSE-SU-2019:2447 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- openSUSE-SU-2019:2451 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- openSUSE-SU-2019:2452 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- openSUSE-SU-2019:2459 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- openSUSE-SU-2019:2464 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- [debian-lts-announce] 20191110 [SECURITY] [DLA 1987-1] firefox-esr security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 20191118 [SECURITY] [DSA 4571-1] thunderbird security update (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- DSA-4571 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- [debian-lts-announce] 20191118 [SECURITY] [DLA 1997-1] thunderbird security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- GLSA-201911-08 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- USN-4202-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- 20191211 APPLE-SA-2019-12-10-8 watchOS 6.1.1 (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 20191211 APPLE-SA-2019-12-10-5 tvOS 13.3 (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 20191211 APPLE-SA-2019-12-10-3 macOS Catalina 10.15.2, Security Update 2019-002 Mojave, Security Update 2019-007 High Sierra (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 20191213 APPLE-SA-2019-12-10-1 iOS 13.3 and iPadOS 13.3 (opens in a new tab)mailing-listx_refsource_FULLDISCx_transferred
- 20191213 APPLE-SA-2019-12-10-3 macOS Catalina 10.15.2, Security Update 2019-002 Mojave, Security Update 2019-007 High Sierra (opens in a new tab)mailing-listx_refsource_FULLDISCx_transferred
- 20191213 APPLE-SA-2019-12-10-8 watchOS 6.1.1 (opens in a new tab)mailing-listx_refsource_FULLDISCx_transferred
- 20191213 APPLE-SA-2019-12-10-5 tvOS 13.3 (opens in a new tab)mailing-listx_refsource_FULLDISCx_transferred
- openSUSE-SU-2020:0010 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- openSUSE-SU-2020:0086 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- USN-4335-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- https://www.oracle.com/security-alerts/cpuapr2020.html (opens in a new tab)x_refsource_MISCx_transferred
- https://www.oracle.com/security-alerts/cpuoct2020.html (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/libexpat/libexpat/issues/317 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/libexpat/libexpat/pull/318 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/libexpat/libexpat/commit/c20b758c332d9a13afbbb276d30db1d183a85d43 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/libexpat/libexpat/issues/342 (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://packetstormsecurity.com/files/154503/Slackware-Security-Advisory-expat-Updates.html (opens in a new tab)x_refsource_MISCx_transferred
- https://security.netapp.com/advisory/ntap-20190926-0004/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://packetstormsecurity.com/files/154927/Slackware-Security-Advisory-python-Updates.html (opens in a new tab)x_refsource_MISCx_transferred
- http://packetstormsecurity.com/files/154947/Slackware-Security-Advisory-mozilla-firefox-Updates.html (opens in a new tab)x_refsource_MISCx_transferred
- https://support.apple.com/kb/HT210788 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://support.apple.com/kb/HT210790 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://support.apple.com/kb/HT210785 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://support.apple.com/kb/HT210789 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://support.apple.com/kb/HT210793 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://support.apple.com/kb/HT210795 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://support.apple.com/kb/HT210794 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://www.tenable.com/security/tns-2021-11 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html (opens in a new tab)
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)
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[](https://trackcve.app/cve/CVE-2019-15903)Record last updated .