CVE-2021-29457 - log back

CVE-2021-29457 edited at 22 Jun 2021 15:20:01
Description
A heap buffer overflow was found in Exiv2 before version 0.27.4. The heap overflow is triggered when Exiv2 is used to write metadata into a crafted image file. An attacker could potentially exploit the vulnerability to gain code execution, if they can trick the victim into running Exiv2 on a crafted image file.
- Note that this bug is only triggered when _writing_ the metadata, which is a less frequently used Exiv2 operation than _reading_ the metadata. For example, to trigger the bug in the Exiv2 command-line application, you need to add an extra command-line argument such as `insert`.
+ Note that this bug is only triggered when _writing_ the metadata, which is a less frequently used Exiv2 operation than _reading_ the metadata. For example, to trigger the bug in the Exiv2 command-line application, you need to add an extra command-line argument such as insert.
CVE-2021-29457 edited at 18 Jun 2021 17:41:41
Severity
- Medium
+ Low
CVE-2021-29457 edited at 18 Jun 2021 17:34:24
Description
A heap buffer overflow was found in Exiv2 before version 0.27.4. The heap overflow is triggered when Exiv2 is used to write metadata into a crafted image file. An attacker could potentially exploit the vulnerability to gain code execution, if they can trick the victim into running Exiv2 on a crafted image file.
Note that this bug is only triggered when _writing_ the metadata, which is a less frequently used Exiv2 operation than _reading_ the metadata. For example, to trigger the bug in the Exiv2 command-line application, you need to add an extra command-line argument such as `insert`.
-
- The bug is fixed in version v0.27.4.
CVE-2021-29457 edited at 18 Jun 2021 17:34:14
Remote
- Local
+ Remote
Description
- A heap buffer overflow was found in Exiv2 versions v0.27.3 and earlier. The heap overflow is triggered when Exiv2 is used to write metadata into a crafted image file. An attacker could potentially exploit the vulnerability to gain code execution, if they can trick the victim into running Exiv2 on a crafted image file.
+ A heap buffer overflow was found in Exiv2 before version 0.27.4. The heap overflow is triggered when Exiv2 is used to write metadata into a crafted image file. An attacker could potentially exploit the vulnerability to gain code execution, if they can trick the victim into running Exiv2 on a crafted image file.
Note that this bug is only triggered when _writing_ the metadata, which is a less frequently used Exiv2 operation than _reading_ the metadata. For example, to trigger the bug in the Exiv2 command-line application, you need to add an extra command-line argument such as `insert`.
The bug is fixed in version v0.27.4.
CVE-2021-29457 edited at 24 Apr 2021 08:43:13
References
https://github.com/Exiv2/exiv2/security/advisories/GHSA-v74w-h496-cgqm
https://github.com/Exiv2/exiv2/issues/1529
https://github.com/Exiv2/exiv2/pull/1534
- https://github.com/Exiv2/exiv2/commit/0230620e6ea5e2da0911318e07ce6e66d1ebdf22
+ https://github.com/Exiv2/exiv2/commit/13e5a3e02339b746abcaee6408893ca2fd8e289d
CVE-2021-29457 edited at 19 Apr 2021 20:30:45
Severity
- Unknown
+ Medium
Remote
- Unknown
+ Local
Type
- Unknown
+ Arbitrary code execution
Description
+ A heap buffer overflow was found in Exiv2 versions v0.27.3 and earlier. The heap overflow is triggered when Exiv2 is used to write metadata into a crafted image file. An attacker could potentially exploit the vulnerability to gain code execution, if they can trick the victim into running Exiv2 on a crafted image file.
+
+ Note that this bug is only triggered when _writing_ the metadata, which is a less frequently used Exiv2 operation than _reading_ the metadata. For example, to trigger the bug in the Exiv2 command-line application, you need to add an extra command-line argument such as `insert`.
+
+ The bug is fixed in version v0.27.4.
References
+ https://github.com/Exiv2/exiv2/security/advisories/GHSA-v74w-h496-cgqm
+ https://github.com/Exiv2/exiv2/issues/1529
+ https://github.com/Exiv2/exiv2/pull/1534
+ https://github.com/Exiv2/exiv2/commit/0230620e6ea5e2da0911318e07ce6e66d1ebdf22
Notes
CVE-2021-29457 created at 19 Apr 2021 20:28:51