Out-of-bounds Read in Xmlsoft Libxml2
CVE-2017-9049
libxml2 20904-GITv2.9.4-16-g0741801 is vulnerable to a heap-based buffer over-read in the xmlDictComputeFastKey function in dict.c. This vulnerability causes programs that use libxml2, such as PHP, to crash. This vulnerability exists because of an incomplete fix for libxml2 Bug 759398.
Vulnerability class: Buffer Overflow
EPSS: 0.046 (90.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Xmlsoft Libxml2 — versions 2.9.4
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (vendor-advisory, x_refsource_DEBIAN)
- cve@mitre.org (vendor-advisory, x_refsource_GENTOO)
- cve@mitre.org (Exploit, Patch, Mailing List, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- cve@mitre.org (mailing-list, x_refsource_MLIST)
- cve@mitre.org (mailing-list, x_refsource_MLIST)
Frequently asked questions
- What is CVE-2017-9049?
- CVE-2017-9049 is a high-severity vulnerability in Xmlsoft Libxml2, classified under Out-of-bounds Read. CVSS score: 7.5/10. Published 2017-05-18.
- How severe is CVE-2017-9049?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2017-9049 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.