| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 8.9 | $0-$5k | 0.47 |
Summary
A vulnerability was found in Red Hat Linux up to 5.2. It has been rated as problematic. This impacts an unknown function of the component Dosemu S-Lang Library. The manipulation leads to memory corruption. This vulnerability is documented as CVE-1999-0390. There is not any exploit available. Upgrading the affected component is advised.
Details
A vulnerability was found in Red Hat Linux up to 5.2 (Operating System) and classified as critical. This issue affects an unknown function of the component Dosemu S-Lang Library. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:
Buffer overflow in Dosemu Slang library in Linux.
The issue has been introduced in 10/03/1996. The weakness was released 01/04/1999 by FIRST (Website). The advisory is shared at ftp.caldera.com. The identification of this vulnerability is CVE-1999-0390. The exploitation is known to be easy. An attack has to be approached locally. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available.
The vulnerability was handled as a non-public zero-day exploit for at least 823 days. During that time the estimated underground price was around $5k-$25k.
Upgrading eliminates this vulnerability.
The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 187†). Entries connected to this vulnerability are available at VDB-14439 and VDB-14438. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Product
Type
Vendor
Name
Version
License
Website
- Vendor: https://www.redhat.com/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 9.3VulDB Meta Temp Score: 8.9
VulDB Base Score: 9.3
VulDB Temp Score: 8.9
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Memory corruptionCWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍
Physical: Partially
Local: Yes
Remote: No
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Timeline
10/03/1996 🔍01/04/1999 🔍
01/04/1999 🔍
01/04/1999 🔍
06/20/2014 🔍
04/18/2026 🔍
Sources
Vendor: redhat.comAdvisory: ftp.caldera.com
Researcher: FIRST
Status: Confirmed
CVE: CVE-1999-0390 (🔍)
GCVE (CVE): GCVE-0-1999-0390
GCVE (VulDB): GCVE-100-14441
SecurityFocus: 187 - Dosemu S-Lang Vulnerability
See also: 🔍
Entry
Created: 06/20/2014 12:45Updated: 04/18/2026 04:06
Changes: 06/20/2014 12:45 (52), 04/15/2019 06:34 (4), 04/18/2026 04:06 (18)
Complete: 🔍
Cache ID: 216::103
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
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