CVE-2015-0838: Dulwich Buffer Overflow when handling pack files

CVE-2015-0838 · Severity: low · CVSS 3.1 · Published 2015-03-31

Buffer overflow in the C implementation of the apply_delta function in _pack.c in Dulwich before 0.9.9 allows remote attackers to execute arbitrary code via a crafted pack file.

Technologies: dulwich (PyPI). Vendors: PyPI.

Quick answers

Is CVE-2015-0838 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2015-0838 being exploited in the wild.
How severe is CVE-2015-0838?
Low severity, with a CVSS score of 3.1, published 31 March 2015.
Which products and versions are affected?
dulwich (PyPI) ECOSYSTEM:introduced=0,fixed=0.9.9.
Is there a fix for CVE-2015-0838?
Yes. dulwich (PyPI): upgrade to 0.9.9 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2015-0838?
Check whether you run dulwich (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • dulwich (PyPI): upgrade to 0.9.9 or later
    pip install "dulwich>=0.9.9"

Affected products

  • dulwich (PyPI) ECOSYSTEM:introduced=0,fixed=0.9.9

Identifiers

  • CVE-2015-0838
  • GHSA-vjjf-3rvg-gv3v
  • PYSEC-2015-35

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