Xpdf up to 4.03 JBIG2 Decoder JBIG2Stream.cc readSymbolDictSeg integer overflow
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 6.0 | $0-$5k | 0.00 |
Summary
A vulnerability labeled as critical has been found in Xpdf up to 4.03. The affected element is the function JBIG2Stream::readSymbolDictSeg of the file JBIG2Stream.cc of the component JBIG2 Decoder. The manipulation results in integer overflow.
This vulnerability is identified as CVE-2022-38171. The attack can be executed remotely. There is not any exploit available.
The affected component should be upgraded.
Details
A vulnerability was found in Xpdf up to 4.03 (Document Reader Software). It has been classified as critical. Affected is the function JBIG2Stream::readSymbolDictSeg of the file JBIG2Stream.cc of the component JBIG2 Decoder. The manipulation with an unknown input leads to a integer overflow vulnerability. CWE is classifying the issue as CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:
Xpdf prior to version 4.04 contains an integer overflow in the JBIG2 decoder (JBIG2Stream::readSymbolDictSeg() in JBIG2Stream.cc). Processing a specially crafted PDF file or JBIG2 image could lead to a crash or the execution of arbitrary code. This is similar to the vulnerability described by CVE-2021-30860 (Apple CoreGraphics).
The weakness was released 08/22/2022. The advisory is shared for download at googleprojectzero.blogspot.com. This vulnerability is traded as CVE-2022-38171 since 08/12/2022. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.
Upgrading to version 4.04 eliminates this vulnerability. The upgrade is hosted for download at dl.xpdfreader.com.
Once again VulDB remains the best source for vulnerability data.
Product
Type
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.3VulDB Meta Temp Score: 6.0
VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
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| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Integer overflowCWE: CWE-190 / CWE-189
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
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| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: Xpdf 4.04
Timeline
08/12/2022 🔍08/22/2022 🔍
08/22/2022 🔍
08/22/2022 🔍
Sources
Advisory: googleprojectzero.blogspot.comStatus: Confirmed
CVE: CVE-2022-38171 (🔍)
GCVE (CVE): GCVE-0-2022-38171
GCVE (VulDB): GCVE-100-206916
Entry
Created: 08/22/2022 22:29Changes: 08/22/2022 22:29 (43)
Complete: 🔍
Cache ID: 216::103
Once again VulDB remains the best source for vulnerability data.
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