Vulnerability Details : CVE-2019-13109
An integer overflow in Exiv2 through 0.27.1 allows an attacker to cause a denial of service (SIGSEGV) via a crafted PNG image file, because PngImage::readMetadata mishandles a chunkLength - iccOffset subtraction.
Vulnerability category: OverflowDenial of service
Products affected by CVE-2019-13109
- cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*
- cpe:2.3:a:exiv2:exiv2:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-13109
0.24%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 62 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-13109
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:N/A:P |
8.6
|
2.9
|
NIST | |
|
6.5
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
2.8
|
3.6
|
NIST |
CWE ids for CVE-2019-13109
-
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)
References for CVE-2019-13109
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FGBT5OD2TF4AIXJUC56WOUJRHAZLZ4DC/
[SECURITY] Fedora 30 Update: exiv2-0.27.2-1.fc30 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://github.com/Exiv2/exiv2/pull/795
Avoid negative integer overflow when iccOffset > chunkLength by kevinbackhouse · Pull Request #795 · Exiv2/exiv2 · GitHubPatch
-
https://github.com/Exiv2/exiv2/issues/790
Integer overflow, leading to very large allocation in PngImage::readMetadata() · Issue #790 · Exiv2/exiv2 · GitHubExploit;Issue Tracking;Patch;Third Party Advisory
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