Vulnerability Details : CVE-2021-3889
Potential exploit
libmobi is vulnerable to Use of Out-of-range Pointer Offset
Vulnerability category: Overflow
Products affected by CVE-2021-3889
- cpe:2.3:a:libmobi_project:libmobi:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-3889
0.09%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 23 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-3889
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:N/A:P |
8.6
|
4.9
|
NIST | |
|
7.1
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L |
2.8
|
3.7
|
huntr.dev | |
|
8.1
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H |
2.8
|
5.2
|
NIST |
CWE ids for CVE-2021-3889
-
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)
-
The product performs pointer arithmetic on a valid pointer, but it uses an offset that can point outside of the intended range of valid memory locations for the resulting pointer.Assigned by: security@huntr.dev (Secondary)
References for CVE-2021-3889
-
https://huntr.dev/bounties/efb3e261-3f7d-4a45-8114-e0ace6b21516
huntr: Use of Out-of-range Pointer Offset C Vulnerability in libmobiExploit;Patch;Third Party Advisory
-
https://github.com/bfabiszewski/libmobi/commit/bec783e6212439a335ba6e8df7ab8ed610ca9a21
Fix potential out-of-buffer read while parsing corrupt file, closes #… · bfabiszewski/libmobi@bec783e · GitHubPatch;Third Party Advisory
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