CVE-2018-6540 — Incorrect Calculation of Buffer Size in Zziplib

CWE-131 — Incorrect Calculation of Buffer Size8 documents7 sources
Severity
6.5MEDIUMNVD
EPSS
0.4%
top 38.29%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Gdraheim ZziplibDebian ZziplibCanonical Ubuntu Linux
Timeline
PublishedFeb 2
Latest updateMay 13

Description

In ZZIPlib 0.13.67, there is a bus error caused by loading of a misaligned address in the zzip_disk_findfirst function of zzip/mmapped.c. Remote attackers could leverage this vulnerability to cause a denial of service via a crafted zip file.

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HExploitability: 2.8 | Impact: 3.6

Affected Packages3 packages

▶debiandebian/zziplib< zziplib 0.13.62-3.2 (bookworm)
▶Debiangdraheim/zziplib< 0.13.62-3.2+3
▶NVDgdraheim/zziplib0.13.67

Also affects: Ubuntu Linux 14.04, 16.04, 17.10, 18.04

🔴Vulnerability Details

2
GHSA
GHSA-g9wc-x35v-4258: In ZZIPlib 0↗2022-05-13
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OSV
CVE-2018-6540: In ZZIPlib 0↗2018-02-02
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📋Vendor Advisories

3
Ubuntu
zziplib vulnerabilities↗2018-07-03
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Red Hat
zziplib: bus error in zzip_disk_findfirst function in zzip/mmapped.c↗2018-02-02
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Debian
CVE-2018-6540: zziplib - In ZZIPlib 0.13.67, there is a bus error caused by loading of a misaligned addre...↗2018
▶

💬Community

2
Bugzilla
CVE-2018-6540 zziplib: bus error in zzip_disk_findfirst function in zzip/mmapped.c↗2018-02-05
▶
Bugzilla
CVE-2018-6540 zziplib: bus error in zzip_disk_findfirst function in zzip/mmapped.c [fedora-all]↗2018-02-05
▶