CVE-2021-27345 — NULL Pointer Dereference in Linux

CWE-476 — NULL Pointer Dereference7 documents6 sources
Severity
5.5MEDIUMNVD
EPSS
0.5%
top 35.49%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Ckolivas LrzipDebian LinuxLong Range ZIP Project Long Range ZIP
Timeline
PublishedJun 10
Latest updateFeb 2

Description

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.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages3 packages

▶Debianckolivas/lrzip< 0.640-1+3
▶Ubuntuckolivas/lrzip< 0.631-1+deb9u3build0.18.04.1+4

Also affects: Debian Linux 9.0

Patches

Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

4
OSV
lrzip vulnerabilities↗2023-02-02
▶
GHSA
GHSA-7h9p-4h36-3h37: A null pointer dereference was discovered in ucompthread in stream↗2022-05-24
▶
OSV
CVE-2021-27345: A null pointer dereference was discovered in ucompthread in stream↗2021-06-10
▶
CVEList
CVE-2021-27345: A null pointer dereference was discovered in ucompthread in stream↗2021-06-10
▶

📋Vendor Advisories

2
Ubuntu
Long Range ZIP vulnerabilities↗2023-02-02
▶
Debian
CVE-2021-27345: lrzip - A null pointer dereference was discovered in ucompthread in stream.c in Irzip 0....↗2021
▶
CVE-2021-27345 — NULL Pointer Dereference in Linux | cvebase