Long Range Zip
CVE-2021-27345
MEDIUM
Severity by source
AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Lifecycle Timeline
1DescriptionNVD
A null pointer dereference was discovered in ucompthread in stream.c in Irzip 0.631 which allows attackers to cause a denial of service (DOS) via a crafted compressed file.
AnalysisAI
A null pointer dereference was discovered in ucompthread in stream.c in Irzip 0.631 which allows attackers to cause a denial of service (DOS) via a crafted compressed file. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
Technical ContextAI
This vulnerability is classified as NULL Pointer Dereference (CWE-476), which allows attackers to crash the application by dereferencing a null pointer. A null pointer dereference was discovered in ucompthread in stream.c in Irzip 0.631 which allows attackers to cause a denial of service (DOS) via a crafted compressed file. Affected products include: Long Range Zip Project Long Range Zip, Debian Debian Linux.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Check pointers before dereferencing. Use static analysis tools to detect null pointer paths.
More in Long Range Zip
View allIn Long Range Zip (aka lrzip) 0.631, there is a use-after-free in the lzma_decompress_buf function of stream.c, which al
In Long Range Zip (aka lrzip) 0.631, there is a use-after-free in read_stream in stream.c, because decompress_file in lr
lrzip v0.651 was discovered to contain a heap overflow via the libzpaq::PostProcessor::write(int) function at /libzpaq/l
Lrzip v0.651 was discovered to contain multiple invalid arithmetic shifts via the functions get_magic in lrzip.c and Pre
lrzip v0.641 was discovered to contain a multiple concurrency use-after-free between the functions zpaq_decompress_buf()
Use after free in lzma_decompress_buf function in stream.c in Irzip 0.631 allows attackers to cause Denial of Service (D
The lzo1x_decompress function in liblzo2.so.2 in LZO 2.10, as used in Long Range Zip (aka lrzip) 0.631, allows remote at
In Long Range Zip (aka lrzip) 0.631, there is an infinite loop in the runzip_fd function of runzip.c. Rated medium sever
In Long Range Zip (aka lrzip) 0.631, there is an infinite loop and application hang in the get_fileinfo function (lrzip.
In Long Range Zip (aka lrzip) 0.631, there is a use-after-free in the ucompthread function (stream.c). Rated medium seve
In Long Range Zip (aka lrzip) 0.631, there is an infinite loop and application hang in the unzip_match function in runzi
The read_1g function in stream.c in liblrzip.so in lrzip 0.631 allows remote attackers to cause a denial of service (hea
Same weakness CWE-476 – NULL Pointer Dereference
View allSame technique Null Pointer Dereference
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External POC / Exploit Code
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