CVE-2022-26291

moderate-risk
Published 2022-03-28

lrzip v0.641 was discovered to contain a multiple concurrency use-after-free between the functions zpaq_decompress_buf() and clear_rulist(). This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted Irz file.

Do I need to act?

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0.45% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (4)

Affected Vendors

Debian Long Range Zip Project

References (6)

Exploit https://github.com/ckolivas/lrzip/issues/206
Mailing List https://lists.debian.org/debian-lts-announce/2022/04/msg00012.html
Third Party Advisory https://www.debian.org/security/2022/dsa-5145
Exploit https://github.com/ckolivas/lrzip/issues/206
Mailing List https://lists.debian.org/debian-lts-announce/2022/04/msg00012.html
Third Party Advisory https://www.debian.org/security/2022/dsa-5145
30
/ 100
moderate-risk
Severity 18/34 · Moderate
Exploitability 2/34 · Minimal
Exposure 10/34 · Low