CVE catalog

CVE-2003-0107

zlib: CVE-2003-0107

Severity: Medium
Published: Mar 7, 2003, 5:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 25.99% · Oct 22, 2026

Buffer overflow in the gzprintf function in zlib 1.1.4, when zlib is compiled without vsnprintf or when long inputs are truncated using vsnprintf, allows attackers to cause a denial of service or possibly execute arbitrary code.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	zlib	sid	`1:1.3.dfsg+really1.3.2-3`	fixed
Debian	zlib	forky	`1:1.3.dfsg+really1.3.2-3`	fixed
Debian	zlib	trixie	`1:1.3.dfsg+really1.3.1-1`	fixed
Debian	zlib	bookworm	`1:1.2.13.dfsg-1`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	zlib	source	sid	`1:1.1.4-10`	not yet assigned	Not reported	Not reported
Debian	zlib	source	forky	`1:1.1.4-10`	not yet assigned	Not reported	Not reported
Debian	zlib	source	trixie	`1:1.1.4-10`	not yet assigned	Not reported	Not reported
Debian	zlib	source	bookworm	`1:1.1.4-10`	not yet assigned	Not reported	Not reported

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[lib32z1]Fixed
Source package: [zlib]
Details (1)
- 1:1.2.13.dfsg-1 · amd64 · bookworm
  Fixed · Fixed: 1:1.1.4-10
  dsa · zlib · debian · bookworm; dsa · zlib · debian · 12
[lib32z1-dev]Fixed
Source package: [zlib]
Details (1)
- 1:1.2.13.dfsg-1 · amd64 · bookworm
  Fixed · Fixed: 1:1.1.4-10
  dsa · zlib · debian · bookworm; dsa · zlib · debian · 12
[zlib1g]Fixed
Source package: [zlib]
Details (2)
- 1:1.2.13.dfsg-1 · amd64 · bookworm
  Fixed · Fixed: 1:1.1.4-10
  dsa · zlib · debian · bookworm; dsa · zlib · debian · 12
- 1:1.2.13.dfsg-1 · arm64 · bookworm
  Fixed · Fixed: 1:1.1.4-10
  dsa · zlib · debian · bookworm; dsa · zlib · debian · 12
[zlib1g-dev]Fixed
Source package: [zlib]
Details (2)
- 1:1.2.13.dfsg-1 · amd64 · bookworm
  Fixed · Fixed: 1:1.1.4-10
  dsa · zlib · debian · bookworm; dsa · zlib · debian · 12
- 1:1.2.13.dfsg-1 · arm64 · bookworm
  Fixed · Fixed: 1:1.1.4-10
  dsa · zlib · debian · bookworm; dsa · zlib · debian · 12

[Debian 13 (Trixie)]

[lib32z1]Fixed
Source package: [zlib]
Details (1)
- 1:1.3.dfsg+really1.3.1-1+b1 · amd64 · trixie
  Fixed · Fixed: 1:1.1.4-10
  dsa · zlib · debian · 13
[lib32z1-dev]Fixed
Source package: [zlib]
Details (1)
- 1:1.3.dfsg+really1.3.1-1+b1 · amd64 · trixie
  Fixed · Fixed: 1:1.1.4-10
  dsa · zlib · debian · 13
[libminizip1t64]Fixed
Source package: [zlib]
Details (2)
- 1:1.3.dfsg+really1.3.1-1+b1 · amd64 · trixie
  Fixed · Fixed: 1:1.1.4-10
  dsa · zlib · debian · 13
- 1:1.3.dfsg+really1.3.1-1+b1 · arm64 · trixie
  Fixed · Fixed: 1:1.1.4-10
  dsa · zlib · debian · 13
[libminizip-dev]Fixed
Source package: [zlib]
Details (2)
- 1:1.3.dfsg+really1.3.1-1+b1 · amd64 · trixie
  Fixed · Fixed: 1:1.1.4-10
  dsa · zlib · debian · 13
- 1:1.3.dfsg+really1.3.1-1+b1 · arm64 · trixie
  Fixed · Fixed: 1:1.1.4-10
  dsa · zlib · debian · 13
[minizip]Fixed
Source package: [zlib]
Details (2)
- 1:1.3.dfsg+really1.3.1-1+b1 · amd64 · trixie
  Fixed · Fixed: 1:1.1.4-10
  dsa · zlib · debian · 13
- 1:1.3.dfsg+really1.3.1-1+b1 · arm64 · trixie
  Fixed · Fixed: 1:1.1.4-10
  dsa · zlib · debian · 13
[zlib1g]Fixed
Source package: [zlib]
Details (2)
- 1:1.3.dfsg+really1.3.1-1+b1 · amd64 · trixie
  Fixed · Fixed: 1:1.1.4-10
  dsa · zlib · debian · 13
- 1:1.3.dfsg+really1.3.1-1+b1 · arm64 · trixie
  Fixed · Fixed: 1:1.1.4-10
  dsa · zlib · debian · 13
[zlib1g-dev]Fixed
Source package: [zlib]
Details (2)
- 1:1.3.dfsg+really1.3.1-1+b1 · amd64 · trixie
  Fixed · Fixed: 1:1.1.4-10
  dsa · zlib · debian · 13
- 1:1.3.dfsg+really1.3.1-1+b1 · arm64 · trixie
  Fixed · Fixed: 1:1.1.4-10
  dsa · zlib · debian · 13

Observed: Oct 23, 2026, 5:02:15 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database]