Vulnerability Details : CVE-2019-20421
In Jp2Image::readMetadata() in jp2image.cpp in Exiv2 0.27.2, an input file can result in an infinite loop and hang, with high CPU consumption. Remote attackers could leverage this vulnerability to cause a denial of service via a crafted file.
Vulnerability category: Denial of service
Products affected by CVE-2019-20421
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*
- cpe:2.3:a:exiv2:exiv2:0.27.2:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-20421
0.55%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 74 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-20421
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.8
|
HIGH | AV:N/AC:L/Au:N/C:N/I:N/A:C |
10.0
|
6.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2019-20421
-
The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.Assigned by: nvd@nist.gov (Primary)
References for CVE-2019-20421
-
https://github.com/Exiv2/exiv2/issues/1011
An infinite loop and hang in Exiv2::Jp2Image::readMetadata() · Issue #1011 · Exiv2/exiv2 · GitHubExploit;Patch;Third Party Advisory
-
https://lists.debian.org/debian-lts-announce/2021/08/msg00028.html
[SECURITY] [DLA 2750-1] exiv2 security updateMailing List;Third Party Advisory
-
https://github.com/Exiv2/exiv2/commit/a82098f4f90cd86297131b5663c3dec6a34470e8
Fix #1011 fix_1011_jp2_readmetadata_loop (#1013) · Exiv2/exiv2@a82098f · GitHubPatch;Third Party Advisory
-
https://www.debian.org/security/2021/dsa-4958
Debian -- Security Information -- DSA-4958-1 exiv2Third Party Advisory
-
https://usn.ubuntu.com/4270-1/
USN-4270-1: Exiv2 vulnerability | Ubuntu security noticesThird Party Advisory
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