Vulnerability Details : CVE-2019-5086
Potential exploit
An exploitable integer overflow vulnerability exists in the flattenIncrementally function in the xcf2png and xcf2pnm binaries of xcftools, version 1.0.7. An integer overflow can occur while walking through tiles that could be exploited to corrupt memory and execute arbitrary code. In order to trigger this vulnerability, a victim would need to open a specially crafted XCF file.
Vulnerability category: OverflowMemory CorruptionExecute code
Products affected by CVE-2019-5086
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:a:xcftools_project:xcftools:1.0.7:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-5086
0.20%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 40 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-5086
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P |
8.6
|
6.4
|
NIST | |
|
7.5
|
HIGH | CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H |
1.6
|
5.9
|
Talos | |
|
8.8
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST |
CWE ids for CVE-2019-5086
-
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.Assigned by: nvd@nist.gov (Primary)
-
The product performs a calculation to determine how much memory to allocate, but an integer overflow can occur that causes less memory to be allocated than expected, leading to a buffer overflow.Assigned by: talos-cna@cisco.com (Secondary)
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2019-5086
-
https://lists.debian.org/debian-lts-announce/2021/03/msg00008.html
[SECURITY] [DLA 2553-2] xcftools regression updateMailing List;Third Party Advisory
-
https://talosintelligence.com/vulnerability_reports/TALOS-2019-0878
TALOS-2019-0878 || Cisco Talos Intelligence Group - Comprehensive Threat IntelligenceExploit;Third Party Advisory
-
https://www.talosintelligence.com/vulnerability_reports/TALOS-2019-0878
TALOS-2019-0878 || Cisco Talos Intelligence Group - Comprehensive Threat IntelligenceExploit;Third Party Advisory
-
https://lists.debian.org/debian-lts-announce/2021/02/msg00014.html
[SECURITY] [DLA 2553-1] xcftools security updateMailing List;Third Party Advisory
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