Xpdf /xpdf/Stream.cc DCTStream::getChar heap-based overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Xpdf. It has been rated as critical. Impacted is the function DCTStream::getChar of the file /xpdf/Stream.cc. This manipulation causes heap-based overflow. This vulnerability appears as CVE-2022-38231. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability has been found in Xpdf (Document Reader Software) (version unknown) and classified as critical. Affected by this vulnerability is the function DCTStream::getChar of the file /xpdf/Stream.cc. The manipulation with an unknown input leads to a heap-based overflow vulnerability. The CWE definition for the vulnerability is CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

XPDF commit ffaf11c was discovered to contain a heap-buffer overflow via DCTStream::getChar() at /xpdf/Stream.cc.

The weakness was presented 08/17/2022 as 11. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2022-38231 since 08/15/2022. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 09/17/2022).

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

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 7.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/15/2022 🔍
08/17/2022 +2 days 🔍
08/17/2022 +0 days 🔍
09/17/2022 +31 days 🔍

Sourcesinfo

Advisory: 11
Status: Confirmed

CVE: CVE-2022-38231 (🔍)
GCVE (CVE): GCVE-0-2022-38231
GCVE (VulDB): GCVE-100-206563

Entryinfo

Created: 08/17/2022 09:37
Updated: 09/17/2022 10:19
Changes: 08/17/2022 09:37 (39), 09/17/2022 10:19 (11)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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