🛡️ CVE-2015-0838 — dulwich

🔴 CVSS 9.5 — Critical ✅ No Known Exploit CWE-119 OSV
9.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Dulwich Buffer Overflow when handling pack files

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.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. Rated impact: confidentiality high, integrity high, availability high.

Weakness class

CVE-2015-0838 is classified as CWE-119: Improper Restriction of Operations within Memory Buffer Bounds. A read or write is performed without confirming it stays inside the allocated buffer, corrupting adjacent memory.

Affected software

CVE-2015-0838 is recorded against 1 package.

  • dulwich (fixed in 0.9.9)

Timeline and source

Published on 17 May 2022 and last revised on 14 April 2025. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

nvd.nist.gov (Advisory)
github.com (Package)
github.com (Web)
lists.launchpad.net (Web)
www.debian.org (Web)

Details

Severity CRITICAL
CVSS Score 9.5
CVSS Vector CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CWE CWE-119
Public Exploit ✅ No
Source OSV
Published 2022-05-17
Updated 2026-08-12
Modified 2025-04-14
Fix URL N/A

Affected Packages

Software From version Fixed in
dulwich — 0.9.9

Exploit Protection

Are you running dulwich?

CVE-2015-0838 carries CVSS 9.5 Critical rating. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.

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