CVE-2018-15518: debian debian_linux Double Free
CVSS: 8.8v3.0HighModified
AliasesUBUNTU-CVE-2018-15518DEBIAN-CVE-2018-15518
Published 26-12-2018Last modified 05-08-2024
Vulnerability summary
CVE-2018-15518 is a high (CVSS 8.8) Double Free vulnerability in debian debian_linux. EPSS estimates a 2.50% chance of exploitation in the next 30 days, higher than 84.4% of scored vulnerabilities.
CVSS score
8.8/10
010
High · v3.0 (NVD)EPSS score
2.50%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 22 · Related 13DLA-1627-1DLA-1786-1DLA-2377-1DSA-4374-1MGASA-2019-0025MGASA-2020-0204OPENSUSE-SU-2019:0265-1OPENSUSE-SU-2020:1452-1OPENSUSE-SU-2020:1500-1OPENSUSE-SU-2020:1501-1OPENSUSE-SU-2020:1530-1RHSA-2019:2135RHSA-2019:3390RHSA-2020:1172SUSE-SU-2018:4179-1SUSE-SU-2018:4183-1SUSE-SU-2018:4210-1SUSE-SU-2018:4210-2SUSE-SU-2018:4294-1SUSE-SU-2019:0447-1SUSE-SU-2020:1021-1USN-4003-1
Timeline
- 26-12-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
QXmlStream in Qt 5.x before 5.11.3 has a double-free or corruption during parsing of a specially crafted illegal XML document.
CVSS metrics
4 scores · 3 sources · 2 versionsHigh 8.8Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated8.8HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated8.8HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Medium 6.8Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
2.50%
Chance of exploitation in the next 30 days
Percentile
84%
Versus all other CVEs
30-day change
0.00 pp
From 2.50% on 19-09-2026
19-09-202619-10-2026
EPSS score2.50%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian2 products
- qtbase-opensource-src< 5.11.3+dfsg-2
- debian_linuxEOL8.0 | 9.0
Opensuse1 product
- leapEOL42.3
Qt1 product
- qt≥ 5.5.0, < 5.11.3
Ubuntu1 product
- qtbase-opensource-src< 5.5.1+dfsg-16ubuntu7.6 | < 5.9.5+dfsg-0ubuntu2.1
4 vendors · 5 products
References
18 links
- lists.opensuse.org/opensuse-security-announce/2018-12/msg00066.htmlVendor AdvisoryX Refsource SUSEPatchThird Party Advisory
- lists.debian.org/debian-lts-announce/2019/01/msg00004.htmlMailing ListX Refsource MLISTThird Party Advisory
- blog.qt.io/blog/2018/12/04/qt-5-11-3-released-important-security-updates/X Refsource CONFIRMThird Party AdvisoryREPORT