CVE Vulnerabilities

CVE-2017-8846

Use After Free

Published: May 08, 2017 | Modified: Apr 20, 2025
CVSS 3.x
5.5
MEDIUM
Source:
NVD
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS 2.x
4.3 MEDIUM
AV:N/AC:M/Au:N/C:N/I:N/A:P
RedHat/V2
RedHat/V3
Ubuntu
LOW

The read_stream function in stream.c in liblrzip.so in lrzip 0.631 allows remote attackers to cause a denial of service (use-after-free and application crash) via a crafted archive.

Weakness

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 Any operations using the original pointer are no longer valid because the memory “belongs” to the code that operates on the new pointer.

Affected Software

Name Vendor Start Version End Version
Long_range_zip Long_range_zip_project 0.631 (including) 0.631 (including)
Lrzip Ubuntu artful *
Lrzip Ubuntu bionic *
Lrzip Ubuntu esm-apps/bionic *
Lrzip Ubuntu esm-apps/xenial *
Lrzip Ubuntu esm-infra-legacy/trusty *
Lrzip Ubuntu trusty *
Lrzip Ubuntu trusty/esm *
Lrzip Ubuntu upstream *
Lrzip Ubuntu xenial *
Lrzip Ubuntu yakkety *
Lrzip Ubuntu zesty *

Potential Mitigations

References