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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5.4$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.

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)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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

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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: 5.4

VulDB Base Score: 4.3
VulDB Temp Score: 4.3
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: no mitigation known
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 🔍
06/20/2023 +1642 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: 06/20/2023 10:48
Changes: 12/21/2018 11:45 (62), 04/22/2020 16:33 (3), 06/20/2023 10:48 (4)
Complete: 🔍
Cache ID: 216::103

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

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