CVE-2020-13775: fedoraproject fedora NULL Pointer Dereference
Modified
AliasesMGASA-2020-0316UBUNTU-CVE-2020-13775DEBIAN-CVE-2020-13775
Published 02-06-2020Last modified 04-08-2024
Vulnerability summary
CVE-2020-13775 is a medium (CVSS 6.5) NULL Pointer Dereference vulnerability in fedoraproject fedora. EPSS estimates a 1.85% chance of exploitation in the next 30 days, higher than 78.8% of scored vulnerabilities.
CVSS score
6.5/10
010
Medium · v3.1 (NVD)EPSS score
1.85%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded
Timeline
- 02-06-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
ZNC 1.8.0 up to 1.8.1-rc1 allows authenticated users to trigger an application crash (with a NULL pointer dereference) if echo-message is not enabled and there is no network.
CVSS metrics
4 scores · 3 sources · 2 versionsMedium 6.5Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Low 3.5Preferred score · NVD (NIST)
AV:N/AC:M/Au:S/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
1.85%
Chance of exploitation in the next 30 days
Percentile
79%
Versus all other CVEs
30-day change
No change 0.00 pp
From 1.85% on 22-09-2026
22-09-202622-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian1 product
- znc< 1.8.1-1
Fedoraproject1 product
- fedoraEOL31 | 32
Mageia1 product
- znc< 1.8.1-1.mga7
Ubuntu1 product
- zncAll versions (No fix recorded)
Znc1 product
- znc1.8.0
5 vendors · 5 products
References
12 links- github.com/znc/znc/commit/2390ad111bde16a78c98ac44572090b33c3bd2d8X Refsource CONFIRMREPORTPatchThird Party Advisory
- github.com/znc/znc/commit/d229761821da38d984a9e4098ad96842490dc001X Refsource CONFIRMREPORTPatchThird Party Advisory
