GHSA-9q78-27f3-2jmh
webp crate may expose memory contents when encoding an image
Affected versions of this crate did not check that the input slice passed to "webp::Encoder::encode() is large enough for the specified image dimensions.
If the input slice is too short, the library will read out of bounds of the buffer and encode other memory contents as an image, resulting in memory exposure or a segmentation fault.
The flaw was corrected in pull request #44 by always validating the input buffer size when constructing the encoder.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
What each source reports
GitHub Advisories Score used
webp crate may expose memory contents when encoding an image
Affected versions of this crate did not check that the input slice passed to "webp::Encoder::encode() is large enough for the specified image dimensions.
If the input slice is too short, the library will read out of bounds of the buffer and encode other memory contents as an image, resulting in memory exposure or a segmentation fault.
The flaw was corrected in pull request #44 by always validating the input buffer size when constructing the encoder.
- Record
GHSA-9q78-27f3-2jmh- CVSS 4.0
- 4.6 Medium
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U - Weakness
- CWE-125
- Updated
- 2026-11-02
OSV
webp crate may expose memory contents when encoding an image
Affected versions of this crate did not check that the input slice passed to "webp::Encoder::encode() is large enough for the specified image dimensions.
If the input slice is too short, the library will read out of bounds of the buffer and encode other memory contents as an image, resulting in memory exposure or a segmentation fault.
The flaw was corrected in pull request #44 by always validating the input buffer size when constructing the encoder.
- Record
GHSA-9q78-27f3-2jmh- CVSS 4.0
- 4.6 Medium
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U - Weakness
- CWE-125
- Updated
- 2026-11-02
OSVRUSTSEC-2024-0443No score
webp crate may expose memory contents when encoding an image
Affected versions of this crate did not check that the input slice passed to "webp::Encoder::encode() is large enough for the specified image dimensions.
If the input slice is too short, the library will read out of bounds of the buffer and encode other memory contents as an image, resulting in memory exposure or a segmentation fault.
The flaw was corrected in pull request #44 by always validating the input buffer size when constructing the encoder.
- Record
RUSTSEC-2024-0443- Updated
- 2026-11-02
Affected packages
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | GitHub Advisories, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
GHSA-9q78-27f3-2jmh is a medium vulnerability (CVSS 4.6) in webp, published September 6, 2024. No source lists public exploit code. Fixed in webp 0.3.1.