CVE-2019-3817: libcomps Use After Free
CVSS: 8.8v3.0HighModified
AliasesopenSUSE-SU-2019:0328-1RHSA-2019:3898
Published 27-03-2019Last modified 04-08-2024
Vulnerability summary
CVE-2019-3817 is a high (CVSS 8.8) Use After Free vulnerability in libcomps. EPSS estimates a 1.72% chance of exploitation in the next 30 days, higher than 77% of scored vulnerabilities. 2 public exploits are recorded.
CVSS score
8.8/10
010
High · v3.0 (NVD)EPSS score
1.72%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits2github, reference
Advisory lineage
Upstream 0 · Downstream 1Timeline
- 27-03-2019PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
A use-after-free flaw has been discovered in libcomps before version 0.1.10 in the way ObjMRTrees are merged. An attacker, who is able to make an application read a crafted comps XML file, may be able to crash the application or execute malicious code.
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:HSources3 sources · 7.5–8.8
- CVE.orgCNA7.5HighCVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:HDiffers
- OSV · Red hatEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:HDiffers
Medium 6.8Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
1.72%
Chance of exploitation in the next 30 days
Percentile
77%
Versus all other CVEs
30-day change
0.00 pp
From 1.72% on 18-09-2026
18-09-202618-10-2026
EPSS score1.72%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
2 foundLibcomps
Maturity: poc
Exploit Reference (bugzilla.redhat.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Redhat6 products
- libcomps< 0:0.1.8-13.el7
- libcomps-debuginfo< 0:0.1.8-13.el7
- libcomps-devel< 0:0.1.8-13.el7
- libcomps-doc< 0:0.1.8-13.el7
- python-libcomps-doc< 0:0.1.8-13.el7
Libcomps1 product
- libcomps0.1.10
Rpm1 product
- libcomps< 0.1.10
Suse1 product
- libcomps&distro=SUSE Package Hub 15< 0.1.8-bp150.3.3.1
4 vendors · 9 products
References
14 links- bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3817X Refsource CONFIRMExploitIssue TrackingVendor Advisory
- github.com/rpm-software-management/libcomps/issues/41X Refsource CONFIRMExploitIssue TrackingThird Party Advisory
- github.com/rpm-software-management/libcomps/commit/e3a5d056633677959ad924a51758876d415e7046X Refsource CONFIRMPatchThird Party Advisory
- lists.opensuse.org/archives/…Advisory
