Vulnerability Details : CVE-2021-27347
Potential exploit
Use after free in lzma_decompress_buf function in stream.c in Irzip 0.631 allows attackers to cause Denial of Service (DoS) via a crafted compressed file.
Vulnerability category: Memory CorruptionDenial of service
Products affected by CVE-2021-27347
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:a:long_range_zip_project:long_range_zip:0.631:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-27347
0.06%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 27 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-27347
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 | |
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
NIST |
CWE ids for CVE-2021-27347
-
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-27347
-
https://lists.debian.org/debian-lts-announce/2022/04/msg00012.html
[SECURITY] [DLA 2981-1] lrzip security updateMailing List;Third Party Advisory
-
https://github.com/ckolivas/lrzip/issues/165
Segmentation fault casued by use after free in multithread process from close_stream_in, stream:1870 to lzma_decompress_buf, stream:546 · Issue #165 · ckolivas/lrzip · GitHubExploit;Issue Tracking;Patch;Third Party Advisory
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