Vulnerability Details : CVE-2018-6381
Potential exploit
In ZZIPlib 0.13.67, 0.13.66, 0.13.65, 0.13.64, 0.13.63, 0.13.62, 0.13.61, 0.13.60, 0.13.59, 0.13.58, 0.13.57 and 0.13.56 there is a segmentation fault caused by invalid memory access in the zzip_disk_fread function (zzip/mmapped.c) because the size variable is not validated against the amount of file->stored data.
Vulnerability category: OverflowMemory Corruption
Products affected by CVE-2018-6381
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
- 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:17.10:*:*:*:*:*:*:*
- cpe:2.3:a:zziplib_project:zziplib:0.13.67:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-6381
0.32%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 52 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-6381
| 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:3.0/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-2018-6381
-
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-6381
-
https://github.com/Hack-Me/Pocs_for_Multi_Versions/tree/main/CVE-2018-6381
Pocs_for_Multi_Versions/CVE-2018-6381 at main · Hack-Me/Pocs_for_Multi_Versions · GitHub
-
https://usn.ubuntu.com/3699-1/
USN-3699-1: zziplib vulnerabilities | Ubuntu security noticesThird Party Advisory
-
https://lists.debian.org/debian-lts-announce/2020/06/msg00029.html
[SECURITY] [DLA 2258-1] zziplib security update
-
https://github.com/gdraheim/zziplib/issues/12
Invalid memory access in zzip_disk_fread (src/zzip/mmapped.c) [CVE-2018-6381] · Issue #12 · gdraheim/zziplib · GitHubExploit;Issue Tracking;Third Party Advisory
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