CVE-2020-15904: Buffer Overflow
First published: Wed Jul 22 2020(Updated: )
A buffer overflow in the patching routine of bsdiff4 before 1.2.0 allows an attacker to write to heap memory (beyond allocated bounds) via a crafted patch file.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| pip/bsdiff4 | <1.2.0 | 1.2.0 |
| Bsdiff4 | <1.2.0 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- https://github.com/ilanschnell/bsdiff4/blob/master/CHANGELOG.txt
- https://github.com/ilanschnell/bsdiff4/commit/49a4cee2feef7deaf9d89e5e793a8824930284d7
- https://nvd.nist.gov/vuln/detail/CVE-2020-15904
- https://github.com/ilanschnell/bsdiff4/blob/9a84c2ee01f5ba0742d18c9f3b3d5244ae7fb302/CHANGELOG.txt#L30-L31
- https://github.com/advisories/GHSA-f8m3-jpxr-hm5x (Advisory)
- https://github.com/pypa/advisory-database/tree/main/vulns/bsdiff4/PYSEC-2020-30.yaml
Frequently Asked Questions
What is the severity of CVE-2020-15904?
CVE-2020-15904 is classified as a high severity vulnerability due to the potential for remote code execution through a buffer overflow.
How do I fix CVE-2020-15904?
To fix CVE-2020-15904, upgrade bsdiff4 to version 1.2.0 or later.
What impact does CVE-2020-15904 have on affected systems?
CVE-2020-15904 allows an attacker to write to heap memory, which could lead to arbitrary code execution on affected systems.
Which versions of bsdiff4 are vulnerable to CVE-2020-15904?
All versions of bsdiff4 prior to 1.2.0 are vulnerable to CVE-2020-15904.
Is there a workaround for CVE-2020-15904 if I cannot upgrade bsdiff4?
There is no official workaround for CVE-2020-15904; upgrading to the fixed version is recommended.
- agent/type
- agent/remedy
- agent/weakness
- agent/severity
- agent/softwarecombine
- agent/description
- agent/author
- collector/mitre-cve
- source/MITRE
- agent/event
- agent/first-publish-date
- collector/github-advisory-latest
- source/GitHub
- alias/GHSA-f8m3-jpxr-hm5x
- alias/CVE-2020-15904
- agent/software-canonical-lookup
- agent/references
- agent/last-modified-date
- collector/github-advisory
- agent/trending
- agent/source
- agent/tags
- collector/nvd-cve
- source/NVD
- agent/software-canonical-lookup-request
- collector/nvd-index
- package-manager/pip
- vendor/pypi
- canonical/bsdiff4