CVE-2019-15903
High
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.
SeverityHigh
CVSS7.5
Exploit probability94. percentile6.6%
Product
Libexpat
PublishedSep 4, 2019
First seenSep 4, 2019
Weakness typeCWE-125Out-of-bounds read
How to fix
Update
- libexpat_project libexpat2.2.8 or later
- python python2.7.17, 3.5.8, 3.6.10, 3.7.5 or later
Vendor advisories
- usn.ubuntu.com/4132-1/
- usn.ubuntu.com/4132-2/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BDUTI5TVQWIGGQXPEVI4T2ENHFSBMIBP/
- debian.org/security/2019/dsa-4530
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A4TZKPJFTURRLXIGLB34WVKQ5HGY6JJA/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/S26LGXXQ7YF2BP3RGOWELBFKM6BHF6UG/
- usn.ubuntu.com/4165-1/
- debian.org/security/2019/dsa-4549
- access.redhat.com/errata/RHSA-2019:3210
- access.redhat.com/errata/RHSA-2019:3237
- access.redhat.com/errata/RHSA-2019:3756
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| libexpat_project libexpat | v < 2.2.8 | 2.2.8 |
| python python | 2.7.0 ≤ v < 2.7.17, 3.5.0 ≤ v < 3.5.8, 3.6.0 ≤ v < 3.6.10, 3.7.0 ≤ v < 3.7.5 | 2.7.17, 3.5.8, 3.6.10, 3.7.5 |
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