openEuler update for libexif



Published: 2021-07-31
Risk Medium
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2020-13113
CVE-2020-13114
CWE-ID CWE-476
CWE-119
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		openEuler
Operating systems & Components / Operating system

libexif-help
Operating systems & Components / Operating system package or component

libexif-debugsource
Operating systems & Components / Operating system package or component

libexif-devel
Operating systems & Components / Operating system package or component

libexif-debuginfo
Operating systems & Components / Operating system package or component

libexif
Operating systems & Components / Operating system package or component

Vendor openEuler

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) NULL pointer dereference

EUVDB-ID: #VU28182

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

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

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 20.03 LTS SP2

libexif-help: before 0.6.21-22

libexif-debugsource: before 0.6.21-22

libexif-devel: before 0.6.21-22

libexif-debuginfo: before 0.6.21-22

libexif: before 0.6.21-22

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1286


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) Buffer overflow

EUVDB-ID: #VU28184

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

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

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 20.03 LTS SP2

libexif-help: before 0.6.21-22

libexif-debugsource: before 0.6.21-22

libexif-devel: before 0.6.21-22

libexif-debuginfo: before 0.6.21-22

libexif: before 0.6.21-22

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1286


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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