Ubuntu update for exiv2



Risk High
Patch available YES
Number of vulnerabilities 5
CVE-ID CVE-2021-29463
CVE-2021-29464
CVE-2021-29473
CVE-2021-32617
CVE-2021-29623
CWE-ID CWE-125
CWE-787
CWE-400
CWE-200
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Ubuntu
Operating systems & Components / Operating system

exiv2 (Ubuntu package)
Operating systems & Components / Operating system package or component

libexiv2-27 (Ubuntu package)
Operating systems & Components / Operating system package or component

libexiv2-14 (Ubuntu package)
Operating systems & Components / Operating system package or component

Vendor Canonical Ltd.

Security Bulletin

This security bulletin contains information about 5 vulnerabilities.

1) Out-of-bounds read

EUVDB-ID: #VU84710

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-29463

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary condition within Exiv2::WebPImage::doWriteMetadata(). A remote attacker can pass a specially crafted file to the application and perform a denial of service attack.

Mitigation

Update the affected package exiv2 to the latest version.

Vulnerable software versions

Ubuntu: 16.04 - 21.04

exiv2 (Ubuntu package): before 0.25-3.1ubuntu0.18.04.9

libexiv2-27 (Ubuntu package): before 0.27.2-8ubuntu2.4

libexiv2-14 (Ubuntu package): before 0.25-3.1ubuntu0.18.04.9

CPE2.3 External links

https://ubuntu.com/security/notices/USN-4964-1


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Out-of-bounds write

EUVDB-ID: #VU84711

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2021-29464

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input in Exiv2::Jp2Image::encodeJp2Header(). A remote attacker can pass specially crafted file to the application, trigger an out-of-bounds write and execute arbitrary code on the target system.

Mitigation

Update the affected package exiv2 to the latest version.

Vulnerable software versions

Ubuntu: 16.04 - 21.04

exiv2 (Ubuntu package): before 0.25-3.1ubuntu0.18.04.9

libexiv2-27 (Ubuntu package): before 0.27.2-8ubuntu2.4

libexiv2-14 (Ubuntu package): before 0.25-3.1ubuntu0.18.04.9

CPE2.3 External links

https://ubuntu.com/security/notices/USN-4964-1


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Out-of-bounds read

EUVDB-ID: #VU55921

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-29473

CWE-ID: N/A

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to perform denial of service (DoS) attack.

The vulnerability exists due to a boundary condition when processing Exif, IPTC, XMP and ICC image metadata. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger out-of-bounds read error and crash the affected application.

Mitigation

Update the affected package exiv2 to the latest version.

Vulnerable software versions

Ubuntu: 16.04 - 21.04

exiv2 (Ubuntu package): before 0.25-3.1ubuntu0.18.04.9

libexiv2-27 (Ubuntu package): before 0.27.2-8ubuntu2.4

libexiv2-14 (Ubuntu package): before 0.25-3.1ubuntu0.18.04.9

CPE2.3 External links

https://ubuntu.com/security/notices/USN-4964-1


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

4) Resource exhaustion

EUVDB-ID: #VU67973

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-32617

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application uses an inefficient algorithm (quadratic complexity) when writing metadata into a crafted image file. A remote attacker can trick trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation

Update the affected package exiv2 to the latest version.

Vulnerable software versions

Ubuntu: 16.04 - 21.04

exiv2 (Ubuntu package): before 0.25-3.1ubuntu0.18.04.9

libexiv2-27 (Ubuntu package): before 0.27.2-8ubuntu2.4

libexiv2-14 (Ubuntu package): before 0.25-3.1ubuntu0.18.04.9

CPE2.3 External links

https://ubuntu.com/security/notices/USN-4964-1


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

5) Information disclosure

EUVDB-ID: #VU53298

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-29623

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a read of uninitialized memory flaw. A remote attacker can trick a victim to open a specially crafted image file and gain unauthorized access to sensitive information on the system.

Mitigation

Update the affected package exiv2 to the latest version.

Vulnerable software versions

Ubuntu: 16.04 - 21.04

exiv2 (Ubuntu package): before 0.25-3.1ubuntu0.18.04.9

libexiv2-27 (Ubuntu package): before 0.27.2-8ubuntu2.4

libexiv2-14 (Ubuntu package): before 0.25-3.1ubuntu0.18.04.9

CPE2.3 External links

https://ubuntu.com/security/notices/USN-4964-1


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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