Ubuntu update for libexif



Risk High
Patch available YES
Number of vulnerabilities 6
CVE-ID CVE-2020-0093
CVE-2020-0182
CVE-2020-0198
CVE-2020-13112
CVE-2020-13113
CVE-2020-13114
CWE-ID CWE-125
CWE-190
CWE-476
CWE-119
Exploitation vector Network
Public exploit N/A
Vulnerable software
 libexif (Ubuntu package)
Operating systems & Components / Operating system package or component

Vendor Canonical Ltd.

Security Bulletin

This security bulletin contains information about 6 vulnerabilities.

1) Out-of-bounds read

EUVDB-ID: #VU28271

Risk: Low

CVSSv4.0: 1.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2020-0093

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

Exploit availability: No

Description

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to a missing bounds check in "exif_data_save_data_entry" of "exif-data.c" file within the Media framework functionality. A local user can trigger out-of-bounds read error and read contents of memory on the system.

Mitigation

Update the affected packages.

Ubuntu 20.04 LTS
libexif12 - 0.6.21-6ubuntu0.3
Ubuntu 19.10
libexif12 - 0.6.21-5.1ubuntu0.5
Ubuntu 18.04 LTS
libexif12 - 0.6.21-4ubuntu0.5
Ubuntu 16.04 LTS
libexif12 - 0.6.21-2ubuntu0.5
Ubuntu 14.04 ESM
libexif12 - 0.6.21-1ubuntu1+esm5
Ubuntu 12.04 ESM
libexif12 - 0.6.20-2ubuntu0.6

Vulnerable software versions

libexif (Ubuntu package): 0.6.21-2ubuntu0.1 - 0.6.21-6ubuntu0.1

CPE2.3 External links

https://usn.ubuntu.com/4396-1/


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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

2) Out-of-bounds read

EUVDB-ID: #VU29111

Risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-0182

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

Exploit availability: No

Description

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

The vulnerability exists due to a missing bounds check when processing files. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger out-of-bounds read error and read contents of memory on the system.

Mitigation

Update the affected packages.

Ubuntu 20.04 LTS
libexif12 - 0.6.21-6ubuntu0.3
Ubuntu 19.10
libexif12 - 0.6.21-5.1ubuntu0.5
Ubuntu 18.04 LTS
libexif12 - 0.6.21-4ubuntu0.5
Ubuntu 16.04 LTS
libexif12 - 0.6.21-2ubuntu0.5
Ubuntu 14.04 ESM
libexif12 - 0.6.21-1ubuntu1+esm5
Ubuntu 12.04 ESM
libexif12 - 0.6.20-2ubuntu0.6

Vulnerable software versions

libexif (Ubuntu package): 0.6.21-2ubuntu0.1 - 0.6.21-6ubuntu0.1

CPE2.3 External links

https://usn.ubuntu.com/4396-1/


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) Integer overflow

EUVDB-ID: #VU29112

Risk: High

CVSSv4.0: 5.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2020-0198

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to integer overflow within the exif_data_load_data_content() in exif-data.c. A remote attacker can pass specially crafted data to the application, trigger integer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Update the affected packages.

Ubuntu 20.04 LTS
libexif12 - 0.6.21-6ubuntu0.3
Ubuntu 19.10
libexif12 - 0.6.21-5.1ubuntu0.5
Ubuntu 18.04 LTS
libexif12 - 0.6.21-4ubuntu0.5
Ubuntu 16.04 LTS
libexif12 - 0.6.21-2ubuntu0.5
Ubuntu 14.04 ESM
libexif12 - 0.6.21-1ubuntu1+esm5
Ubuntu 12.04 ESM
libexif12 - 0.6.20-2ubuntu0.6

Vulnerable software versions

libexif (Ubuntu package): 0.6.21-2ubuntu0.1 - 0.6.21-6ubuntu0.1

CPE2.3 External links

https://usn.ubuntu.com/4396-1/


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user 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: #VU28183

Risk: High

CVSSv4.0: 6.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2020-13112

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

Exploit availability: No

Description

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

The vulnerability exists due to a boundary condition in EXIF MakerNote handling. A remote attacker can trigger out-of-bounds read error and read contents of memory on the system or cause a denial of service condition.

Mitigation

Update the affected packages.

Ubuntu 20.04 LTS
libexif12 - 0.6.21-6ubuntu0.3
Ubuntu 19.10
libexif12 - 0.6.21-5.1ubuntu0.5
Ubuntu 18.04 LTS
libexif12 - 0.6.21-4ubuntu0.5
Ubuntu 16.04 LTS
libexif12 - 0.6.21-2ubuntu0.5
Ubuntu 14.04 ESM
libexif12 - 0.6.21-1ubuntu1+esm5
Ubuntu 12.04 ESM
libexif12 - 0.6.20-2ubuntu0.6

Vulnerable software versions

libexif (Ubuntu package): 0.6.21-2ubuntu0.1 - 0.6.21-6ubuntu0.1

CPE2.3 External links

https://usn.ubuntu.com/4396-1/


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) NULL pointer dereference

EUVDB-ID: #VU28182

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-2020-13113

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

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

The vulnerability exists due to a NULL pointer dereference error in EXIF Makernote handling. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.

Mitigation

Update the affected packages.

Ubuntu 20.04 LTS
libexif12 - 0.6.21-6ubuntu0.3
Ubuntu 19.10
libexif12 - 0.6.21-5.1ubuntu0.5
Ubuntu 18.04 LTS
libexif12 - 0.6.21-4ubuntu0.5
Ubuntu 16.04 LTS
libexif12 - 0.6.21-2ubuntu0.5
Ubuntu 14.04 ESM
libexif12 - 0.6.21-1ubuntu1+esm5
Ubuntu 12.04 ESM
libexif12 - 0.6.20-2ubuntu0.6

Vulnerable software versions

libexif (Ubuntu package): 0.6.21-2ubuntu0.1 - 0.6.21-6ubuntu0.1

CPE2.3 External links

https://usn.ubuntu.com/4396-1/


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.

6) Buffer overflow

EUVDB-ID: #VU28184

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-2020-13114

CWE-ID: CWE-119 - Memory corruption

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 error when handling Canon EXIF MakerNote data. A remote attacker can send a specially crafted file, trigger memory corruption and cause a denial of service condition on the target system.

Mitigation

Update the affected packages.

Ubuntu 20.04 LTS
libexif12 - 0.6.21-6ubuntu0.3
Ubuntu 19.10
libexif12 - 0.6.21-5.1ubuntu0.5
Ubuntu 18.04 LTS
libexif12 - 0.6.21-4ubuntu0.5
Ubuntu 16.04 LTS
libexif12 - 0.6.21-2ubuntu0.5
Ubuntu 14.04 ESM
libexif12 - 0.6.21-1ubuntu1+esm5
Ubuntu 12.04 ESM
libexif12 - 0.6.20-2ubuntu0.6

Vulnerable software versions

libexif (Ubuntu package): 0.6.21-2ubuntu0.1 - 0.6.21-6ubuntu0.1

CPE2.3 External links

https://usn.ubuntu.com/4396-1/


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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