Use After Free in Msweet Mini-Xml
CVE-2018-20592
In Mini-XML (aka mxml) v2.12, there is a use-after-free in the mxmlAdd function of the mxml-node.c file. Remote attackers could leverage this vulnerability to cause a denial-of-service via a crafted xml file, as demonstrated by mxmldoc.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.015 (73.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 73rd percentile — 73.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000
Affected products
- Msweet Mini-Xml — versions 2.12
- Fedoraproject Fedora — versions 28, 29
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/ntu-sec/pocs/blob/master/mxml-53c75b0/crashes/uaf_mxml-node.c:128_1… (Exploit, Third Party Advisory)
- github.com/ntu-sec/pocs/blob/master/mxml-53c75b0/crashes/uaf_mxml-node.c:128_2… (Exploit, Third Party Advisory)
- github.com/michaelrsweet/mxml/issues/237 (Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
Frequently asked questions
- What is CVE-2018-20592?
- CVE-2018-20592 is a medium-severity vulnerability in Msweet Mini-Xml, classified under Use After Free. CVSS score: 5.5/10. Published 2018-12-30.
- How severe is CVE-2018-20592?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2018-20592 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.