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CVE-2018-1000879

libarchive version commit 379867ecb330b3a952fb7bfa7bffb7bbd5547205 onwards (release v3.3.0...

6.5 MediumFix available

libarchive version commit 379867ecb330b3a952fb7bfa7bffb7bbd5547205 onwards (release v3.3.0 onwards) contains a CWE-476: NULL Pointer Dereference vulnerability in ACL parser - libarchive/archive_acl.c, archive_acl_from_text_l() that can result in Crash/DoS. This attack appear to be exploitable via the victim must open a specially crafted archive file.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

3.40%Up 1.5 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 6.5

libarchive version commit 379867ecb330b3a952fb7bfa7bffb7bbd5547205 onwards (release v3.3.0 onwards) contains a CWE-476: NULL Pointer Dereference vulnerability in ACL parser - libarchive/archive_acl.c, archive_acl_from_text_l() that can result in Crash/DoS. This attack appear to be exploitable via the victim must open a specially crafted archive file.

Record
CVE-2018-1000879
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS 2.0
4.3 MediumAV:N/AC:M/Au:N/C:N/I:N/A:P
Weakness
CWE-476
Updated
2026-11-02
CVE List No score

libarchive version commit 379867ecb330b3a952fb7bfa7bffb7bbd5547205 onwards (release v3.3.0 onwards) contains a CWE-476: NULL Pointer Dereference vulnerability in ACL parser - libarchive/archive_acl.c, archive_acl_from_text_l() that can result in Crash/DoS. This attack appear to be exploitable via the victim must open a specially crafted archive file.

Record
CVE-2018-1000879
Updated
2026-11-02
EUVDEUVD-2018-2056 No score

libarchive version commit 379867ecb330b3a952fb7bfa7bffb7bbd5547205 onwards (release v3.3.0 onwards) contains a CWE-476: NULL Pointer Dereference vulnerability in ACL parser - libarchive/archive_acl.c, archive_acl_from_text_l() that can result in Crash/DoS. This attack appear to be exploitable via the victim must open a specially crafted archive file.

Record
EUVD-2018-2056
Updated
2026-11-02
GitHub AdvisoriesGHSA-7pgj-273w-w98j 6.5

libarchive version commit 379867ecb330b3a952fb7bfa7bffb7bbd5547205 onwards (release v3.3.0...

libarchive version commit 379867ecb330b3a952fb7bfa7bffb7bbd5547205 onwards (release v3.3.0 onwards) contains a CWE-476: NULL Pointer Dereference vulnerability in ACL parser - libarchive/archive_acl.c, archive_acl_from_text_l() that can result in Crash/DoS. This attack appear to be exploitable via the victim must open a specially crafted archive file.

Record
GHSA-7pgj-273w-w98j
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness
CWE-476
Updated
2026-11-02
OSVBELL-CVE-2018-1000879 6.5

CVE-2018-1000879 does not affect BellSoft software

Record
BELL-CVE-2018-1000879
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSV 6.5

libarchive version commit 379867ecb330b3a952fb7bfa7bffb7bbd5547205 onwards (release v3.3.0 onwards) contains a CWE-476: NULL Pointer Dereference vulnerability in ACL parser - libarchive/archive_acl.c, archive_acl_from_text_l() that can result in Crash/DoS. This attack appear to be exploitable via the victim must open a specially crafted archive file.

Record
CVE-2018-1000879
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
Show 5 moreShow less
OSVDEBIAN-CVE-2018-1000879 6.5

libarchive version commit 379867ecb330b3a952fb7bfa7bffb7bbd5547205 onwards (release v3.3.0 onwards) contains a CWE-476: NULL Pointer Dereference vulnerability in ACL parser - libarchive/archive_acl.c, archive_acl_from_text_l() that can result in Crash/DoS. This attack appear to be exploitable via the victim must open a specially crafted archive file.

Record
DEBIAN-CVE-2018-1000879
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVMGASA-2019-0030 No score

Updated libarchive packages fix security vulnerabilities

read_header in archive_read_support_format_rar.c in libarchive 3.3.2 suffers from an off-by-one error for UTF-16 names in RAR archives, leading to an out-of-bounds read in archive_read_format_rar_read_header (CVE-2017-14502).

Multiple security issues were found in libarchive: Processing malformed RAR archives could result in denial of service or the execution of arbitrary code and malformed WARC, LHarc, ISO, Xar or CAB archives could result in denial of service (CVE-2018-1000877, CVE-2018-1000878, CVE-2018-1000879, CVE-2018-1000880).

Record
MGASA-2019-0030
Updated
2026-11-02
OSVopenSUSE-SU-2019:1196-1 No score

Security update for libarchive

This update for libarchive fixes the following issues:

Security issues fixed:

  • CVE-2018-1000877: Fixed a double free vulnerability in RAR decoder (bsc#1120653)
  • CVE-2018-1000878: Fixed a Use-After-Free vulnerability in RAR decoder (bsc#1120654)
  • CVE-2018-1000879: Fixed a NULL Pointer Dereference vulnerability in ACL parser (bsc#1120656)
  • CVE-2018-1000880: Fixed an Improper Input Validation vulnerability in WARC parser (bsc#1120659)
  • CVE-2019-1000019: Fixed an Out-Of-Bounds Read vulnerability in 7zip decompression (bsc#1124341)
  • CVE-2019-1000020: Fixed an Infinite Loop vulnerability in ISO9660 parser (bsc#1124342)

This update was imported from the SUSE:SLE-15:Update update project.

Record
openSUSE-SU-2019:1196-1
Updated
2026-11-02
OSVopenSUSE-SU-2024:10925-1 No score

bsdtar-3.5.1-1.5 on GA media

These are all security issues fixed in the bsdtar-3.5.1-1.5 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:10925-1
Updated
2026-11-02
OSVSUSE-SU-2019:0831-1 No score

Security update for libarchive

This update for libarchive fixes the following issues:

Security issues fixed:

  • CVE-2018-1000877: Fixed a double free vulnerability in RAR decoder (bsc#1120653)
  • CVE-2018-1000878: Fixed a Use-After-Free vulnerability in RAR decoder (bsc#1120654)
  • CVE-2018-1000879: Fixed a NULL Pointer Dereference vulnerability in ACL parser (bsc#1120656)
  • CVE-2018-1000880: Fixed an Improper Input Validation vulnerability in WARC parser (bsc#1120659)
  • CVE-2019-1000019: Fixed an Out-Of-Bounds Read vulnerability in 7zip decompression (bsc#1124341)
  • CVE-2019-1000020: Fixed an Infinite Loop vulnerability in ISO9660 parser (bsc#1124342)
Record
SUSE-SU-2019:0831-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
libarchive
Debian:12
 before 3.3.3-2
3.3.3-2
libarchive
Debian:13
 before 3.3.3-2
3.3.3-2
libarchive
Debian:14
 before 3.3.3-2
3.3.3-2
libarchive
Mageia:6
From an advisory covering 5 CVEs
 before 3.3.1-1.4.mga6
3.3.1-1.4.mga6
libarchive
SUSE:Linux Enterprise Module for Basesystem 15
From an advisory covering 6 CVEs
 before 3.3.2-3.8.4
3.3.2-3.8.4
libarchive
SUSE:Linux Enterprise Module for Development Tools 15
From an advisory covering 6 CVEs
 before 3.3.2-3.8.4
3.3.2-3.8.4
libarchive
openSUSE:Leap 15.0
From an advisory covering 6 CVEs
 before 3.3.2-lp150.7.1
3.3.2-lp150.7.1
bsdtar
openSUSE:Tumbleweed
From an advisory covering 12 CVEs
 before 3.5.1-1.5
3.5.1-1.5

History

History
RecordedChangedSources
affected, facts
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2018-1000879 is a medium vulnerability (CVSS 6.5) in Libarchive, published December 20, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.40%, the 88th percentile. Fixed in libarchive 3.3.3-2.

References

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