CVE-2015-0838 json
Dulwich Buffer Overflow when handling pack files
published 2015-03-31 11 y ago modified 2026-06-17 4 mo ago also GHSA-vjjf-3rvg-gv3v , PYSEC-2015-35 , EUVD-2015-0020
- cvss
- 9.8
- version 3.1, GitHub
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 3.4%
- EPSS 3.4% chance of exploitation in 30 days, percentile 88%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- pypi dulwich 0.9.9
- dulwich Debian 14, Debian 13, Debian 12 0.10.1-1
debian advisories DEBIAN-CVE-2015-0838
- python-dulwich openSUSE Tumbleweed 1.2.7-1.1
- python-dulwich openSUSE Tumbleweed 0.21.7-1.3
- python-dulwich openSUSE Tumbleweed 0.12.0-2.3
opensuse advisories openSUSE-SU-2026:11190-1openSUSE-SU-2024:14139-1openSUSE-SU-2024:10124-1
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2015-0838 updated cvss 5.1
python-dulwich: buffer overflow in apply_delta()
-
Red Hat All currently supported Red Hat productsnot affected: vulnerable code not present
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
Exploit prediction
3.38% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
| GitHub | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | dulwich | <0.9.9 |
0.9.9 |
Classification
- Weakness
-
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
References
-
debian.org
/security/2015/dsa-3206
vendor-advisory, web, advisory
-
lists.launchpad.net
/dulwich-users/msg00829.html
mailing-list, web, vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2015-0838
advisory
-
github.com
/jelmer/dulwich
package
-
github.com
/pypa/advisory-database/tree/main/vulns/dulwich/PYSEC-2015-35.yaml
web
-
github.com
/advisories/GHSA-vjjf-3rvg-gv3v
advisory
Sources
- CVE List CVE-2015-0838
- GitHub Advisory GHSA-vjjf-3rvg-gv3v
- NVD CVE-2015-0838
- OSV PYSEC-2015-35
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.