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amazonAmazonALAS-2024-2409
HistoryJan 03, 2024 - 9:04 p.m.

Important: qpdf

2024-01-0321:04:00
alas.aws.amazon.com
9
qpdf
multiple cves
remote code execution
buffer overflow
update
amazon linux 2
red hat
mitre

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

AI Score

6.2

Confidence

High

EPSS

0.001

Percentile

42.7%

Issue Overview:

2024-01-17: CVE-2021-36978 was added to this advisory.

An issue was discovered in QPDF version 10.0.4, allows remote attackers to execute arbitrary code via crafted .pdf file to Pl_ASCII85Decoder::write parameter in libqpdf. (CVE-2021-25786)

QPDF 9.x through 9.1.1 and 10.x through 10.0.4 has a heap-based buffer overflow in Pl_ASCII85Decoder::write (called from Pl_AES_PDF::flush and Pl_AES_PDF::finish) when a certain downstream write fails. (CVE-2021-36978)

Affected Packages:

qpdf

Note:

This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.

Issue Correction:
Run yum update qpdf to update your system.

New Packages:

aarch64:  
    qpdf-5.0.1-4.amzn2.0.2.aarch64  
    qpdf-libs-5.0.1-4.amzn2.0.2.aarch64  
    qpdf-devel-5.0.1-4.amzn2.0.2.aarch64  
    qpdf-debuginfo-5.0.1-4.amzn2.0.2.aarch64  
  
i686:  
    qpdf-5.0.1-4.amzn2.0.2.i686  
    qpdf-libs-5.0.1-4.amzn2.0.2.i686  
    qpdf-devel-5.0.1-4.amzn2.0.2.i686  
    qpdf-debuginfo-5.0.1-4.amzn2.0.2.i686  
  
noarch:  
    qpdf-doc-5.0.1-4.amzn2.0.2.noarch  
  
src:  
    qpdf-5.0.1-4.amzn2.0.2.src  
  
x86_64:  
    qpdf-5.0.1-4.amzn2.0.2.x86_64  
    qpdf-libs-5.0.1-4.amzn2.0.2.x86_64  
    qpdf-devel-5.0.1-4.amzn2.0.2.x86_64  
    qpdf-debuginfo-5.0.1-4.amzn2.0.2.x86_64  

Additional References

Red Hat: CVE-2021-25786, CVE-2021-36978

Mitre: CVE-2021-25786, CVE-2021-36978

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

AI Score

6.2

Confidence

High

EPSS

0.001

Percentile

42.7%