CVE-2020-13112: Integer Overflow
An issue was discovered in libexif before 0.6.22. Several buffer over-reads in EXIF MakerNote handling could lead to information disclosure and crashes. This is different from CVE-2020-0093.
Other sources
In exifentrygetvalue of exif-entry.c, there is a possible out of bounds write due to an integer overflow. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
— OSV
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/libexifto a version that resolves this vulnerability.Fixed in 0.6.22-3Fixed in 0.6.24-1Fixed in 0.6.25-1Fixed in 0.6.25-2 - Upgrade
Upgrade
alpine/libexifto a version that resolves this vulnerability.Fixed in 0.6.22-r0 - Upgrade
Upgrade
android/platform/external/libexifto a version that resolves this vulnerability.Fixed in 10:2022-02-01 - Upgrade
Upgrade
android/platform/external/libexifto a version that resolves this vulnerability.Fixed in 11:2022-02-01 - Upgrade
Upgrade
libexifto a version that resolves this vulnerability.Fixed in 0.6.22
Event History
Frequently Asked Questions
What is CVE-2020-13112?
CVE-2020-13112 is a vulnerability in libexif before version 0.6.22 that allows for buffer over-reads in EXIF MakerNote handling, leading to information disclosure and crashes.
How severe is CVE-2020-13112?
CVE-2020-13112 has a severity rating of 9.1 (critical).
Which software versions are affected by CVE-2020-13112?
The affected software versions include libexif 0.6.21-4ubuntu0.5, 0.6.21-5.1ubuntu0.5, 0.6.21-6ubuntu0.3, 0.6.21-1ubuntu1+, and 0.6.21-2ubuntu0.5.
How can I fix CVE-2020-13112?
To fix CVE-2020-13112, update your libexif package to version 0.6.22 or higher.
Where can I find more information about CVE-2020-13112?
You can find more information about CVE-2020-13112 at the following references: [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-13112), [Ubuntu Security Notices](https://ubuntu.com/security/notices/USN-4396-1), [NVD](https://nvd.nist.gov/vuln/detail/CVE-2020-13112).