Multiple vulnerabilities in GNU Exiv2

Published: 2022-06-04 | Updated: 2023-12-22

Risk	High
Patch available	YES
Number of vulnerabilities	4
CVE-ID	CVE-2021-29470 CVE-2021-29464 CVE-2021-29463 CVE-2021-29458
CWE-ID	CWE-125 CWE-787
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	Exiv2 Universal components / Libraries / Libraries used by multiple products
Vendor	GNU

Security Bulletin

This security bulletin contains information about 4 vulnerabilities.

1) Out-of-bounds read

EUVDB-ID: #VU84712

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-2021-29470

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 in Exiv2::Jp2Image::encodeJp2Header(). A remote attacker can pass specially crafted file to the application and perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Exiv2: before 0.27.4

CPE2.3

cpe:2.3:a:gnu:exiv2:*:*:*:*:*:*:*:*

External links

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

Install updates from vendor's website.

Vulnerable software versions

Exiv2: before 0.27.4

CPE2.3

cpe:2.3:a:gnu:exiv2:*:*:*:*:*:*:*:*

External links

https://github.com/Exiv2/exiv2/commit/f9308839198aca5e68a65194f151a1de92398f54
https://github.com/Exiv2/exiv2/security/advisories/GHSA-jgm9-5fw5-pw9p
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/K3HKXR6JOVKMBE4HY4FDXNVZGNCQG6T3/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NDMZTVQAZSMLPTDVDYLBHAAF7I5QXVYQ/

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: #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

Install update from vendor's website.

Vulnerable software versions

Exiv2: before 0.27.4

CPE2.3

cpe:2.3:a:gnu:exiv2:*:*:*:*:*:*:*:*

External links

https://github.com/Exiv2/exiv2/commit/783b3a6ff15ed6f82a8f8e6c8a6f3b84a9b04d4b
https://github.com/Exiv2/exiv2/security/advisories/GHSA-5p8g-9xf3-gfrr
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/K3HKXR6JOVKMBE4HY4FDXNVZGNCQG6T3/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NDMZTVQAZSMLPTDVDYLBHAAF7I5QXVYQ/

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) Out-of-bounds read

EUVDB-ID: #VU84709

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-2021-29458

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 the Exiv2::Internal::CrwMap::encode() function. A remote attacker can pass a specially crafted file to the application and perform a denial of service attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Exiv2: before 0.27.4

CPE2.3

cpe:2.3:a:gnu:exiv2:*:*:*:*:*:*:*:*

External links

https://github.com/Exiv2/exiv2/pull/1536
https://github.com/Exiv2/exiv2/security/advisories/GHSA-57jj-75fm-9rq5
https://github.com/Exiv2/exiv2/issues/1530
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2XQT5F5IINTDYDAFGVGQZ7PMMLG7I5ZZ/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/P2A5GMJEXQ5Q76JK6F6VKK5JYCLVFGKN/
https://lists.debian.org/debian-lts-announce/2023/01/msg00004.html

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.