Poppler 0.24.5 on Ubuntu Annot.h getCoordsLength null pointer dereference

CVSS Meta Temp Score
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5.8$0-$5k0.00

A vulnerability was found in Poppler 0.24.5 on Ubuntu (Document Reader Software) and classified as problematic. Affected by this issue is the function AnnotPath::getCoordsLength of the file Annot.h. 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. CVE summarizes:

There is a NULL pointer dereference in the AnnotPath::getCoordsLength function in Annot.h in an Ubuntu package for Poppler 0.24.5. A crafted input will lead to a remote denial of service attack. Later Ubuntu packages such as for Poppler 0.41.0 are not affected.

The bug was discovered 05/05/2018. The weakness was disclosed 05/06/2018 (Website). The advisory is shared for download at bugs.freedesktop.org. This vulnerability is handled as CVE-2018-10768 since 05/06/2018. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 110883 (EulerOS 2.0 SP2 : poppler (EulerOS-SA-2018-1219)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Huawei Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 256512 (CentOS Security Update for zenity (CESA-2018:3140)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (110883). The entries 117361, 117391, 117571 and 120452 are pretty similar.

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CPE 2.3info

CPE 2.2info

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CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
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NVD Base Score: 6.5
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CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

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

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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Nessus ID: 110883
Nessus Name: EulerOS 2.0 SP2 : poppler (EulerOS-SA-2018-1219)
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Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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Timelineinfo

05/05/2018 🔍
05/06/2018 +0 days 🔍
05/06/2018 +0 days 🔍
05/06/2018 +0 days 🔍
05/07/2018 +1 days 🔍
06/30/2018 +54 days 🔍
07/03/2018 +3 days 🔍
03/08/2023 +1709 days 🔍

Sourcesinfo

Advisory: RHSA-2018:3140
Status: Confirmed

CVE: CVE-2018-10768 (🔍)
See also: 🔍

Entryinfo

Created: 05/07/2018 08:48
Updated: 03/08/2023 17:23
Changes: 05/07/2018 08:48 (70), 05/26/2020 08:35 (6), 03/08/2023 17:23 (4)
Complete: 🔍

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