Double Free Affecting libarchive package, versions <3.2.2-2+deb9u1


Severity

0.0
high
0
10

    Threat Intelligence

    EPSS
    1.14% (85th percentile)

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  • Snyk ID SNYK-DEBIAN9-LIBARCHIVE-328374
  • published 20 Dec 2018
  • disclosed 20 Dec 2018

How to fix?

Upgrade Debian:9 libarchive to version 3.2.2-2+deb9u1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libarchive package and not the libarchive package as distributed by Debian. See How to fix? for Debian:9 relevant fixed versions and status.

libarchive version commit 416694915449219d505531b1096384f3237dd6cc onwards (release v3.1.0 onwards) contains a CWE-415: Double Free vulnerability in RAR decoder - libarchive/archive_read_support_format_rar.c, parse_codes(), realloc(rar->lzss.window, new_size) with new_size = 0 that can result in Crash/DoS. This attack appear to be exploitable via the victim must open a specially crafted RAR archive.

References

CVSS Scores

version 3.1
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Snyk

8.8 high
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    Required
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High
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NVD
8.8 high
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SUSE
3.3 low
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Red Hat
7 high