VDB-128201 · CVE-2018-1000879 · BID 106324

libarchive 3.3.0 libarchive/archive_acl.c archive_acl_from_text_l null pointer dereference

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability has been found in libarchive 3.3.0 and classified as problematic. The impacted element is the function archive_acl_from_text_l of the file libarchive/archive_acl.c. The manipulation leads to null pointer dereference. This vulnerability is documented as CVE-2018-1000879. The attack can be initiated remotely. There is not any exploit available. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability was found in libarchive 3.3.0 (File Compression Software) and classified as problematic. This issue affects the function archive_acl_from_text_l of the file libarchive/archive_acl.c. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. Impacted is availability. The summary by CVE is:

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.

The bug was discovered 12/13/2018. The weakness was released 12/20/2018 (Website). The advisory is shared at bugs.launchpad.net. The identification of this vulnerability is CVE-2018-1000879 since 12/20/2018. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 7 days. During that time the estimated underground price was around $0-$5k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 277759 (Fedora Security Update for libarchive (FEDORA-2019-0233ec0ff3)).

Applying a patch is able to eliminate this problem.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 106324†). Entries connected to this vulnerability are available at VDB-128199, VDB-128200, VDB-128202 and VDB-130474. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: github.com

Timelineinfo

12/13/2018 🔍
12/20/2018 +7 days 🔍
12/20/2018 +0 days 🔍
12/20/2018 +0 days 🔍
12/20/2018 +0 days 🔍
12/21/2018 +1 days 🔍
10/10/2026 +2850 days 🔍

Sourcesinfo

Product: github.com

Advisory: FEDORA-2019-0233ec0ff3
Status: Confirmed

CVE: CVE-2018-1000879 (🔍)
GCVE (CVE): GCVE-0-2018-1000879
GCVE (VulDB): GCVE-100-128201
SecurityFocus: 106324 - Libarchive Multiple Denial Of Service Vulnerabilities

See also: 🔍

Entryinfo

Created: 12/21/2018 11:45
Updated: 10/10/2026 11:05
Changes: 12/21/2018 11:45 (62), 04/22/2020 16:33 (3), 06/20/2023 10:48 (4), 10/10/2026 11:05 (20)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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