CVE catalog
CVE-2020-23911
asn1c: CVE-2020-23911
- Severity
- Low
- Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.30% · Oct 25, 2026
An issue was discovered in asn1c through v0.9.28. A NULL pointer dereference exists in the function _default_error_logger() located in asn1fix.c. It allows an attacker to cause Denial of Service.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | asn1c | sid | 0.9.28+dfsg-7 | vulnerable |
| Debian | asn1c | forky | 0.9.28+dfsg-7 | vulnerable |
| Debian | asn1c | trixie | 0.9.28+dfsg-5 | vulnerable |
| Debian | asn1c | bookworm | 0.9.28+dfsg-5 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | asn1c | source | sid | (unfixed) | unimportant | Not reported | Not reported |
| Debian | asn1c | source | forky | (unfixed) | unimportant | Not reported | Not reported |
| Debian | asn1c | source | trixie | (unfixed) | unimportant | Not reported | Not reported |
| Debian | asn1c | source | bookworm | (unfixed) | unimportant | Not reported | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [asn1c]Affected
Details (2)
0.9.28+dfsg-5· amd64 · bookwormAffected
dsa · asn1c · debian · bookworm; dsa · asn1c · debian · 12
0.9.28+dfsg-5· arm64 · bookwormAffected
dsa · asn1c · debian · bookworm; dsa · asn1c · debian · 12
- [asn1c-doc]Affected
Source package: [asn1c]
Details (2)
0.9.28+dfsg-5· all · bookwormAffected
dsa · asn1c · debian · bookworm; dsa · asn1c · debian · 12
0.9.28+dfsg-5· all · bookwormAffected
dsa · asn1c · debian · bookworm; dsa · asn1c · debian · 12
[Debian 13 (Trixie)]
- [asn1c]Affected
Source package: [asn1c]
Details (2)
0.9.28+dfsg-5· amd64 · trixieAffected
dsa · asn1c · debian · 13
0.9.28+dfsg-5+b1· arm64 · trixieAffected
dsa · asn1c · debian · 13
- [asn1c-doc]Affected
Source package: [asn1c]
Details (2)
0.9.28+dfsg-5· all · trixieAffected
dsa · asn1c · debian · 13
0.9.28+dfsg-5· all · trixieAffected
dsa · asn1c · debian · 13
Observed: