PT-2018-14289 · Gnu · Gnulib

Tianxiao Gu · Published 2018-10-03 · Updated 2025-01-17 · CVE-2018-17942

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Gnulib versions prior to 2018-09-23

Description The issue is related to a heap-based buffer overflow in the convert to decimal function, located in the vasnprintf.c file. This overflow occurs because memory is not allocated for a trailing '0' character during %f processing.

Recommendations For versions prior to 2018-09-23, update Gnulib to a version released after 2018-09-23 to resolve the issue.

Exploit

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2018-17942

DLA-1543-1

MGASA-2019-0022

OESA-2022-1558

OESA-2022-2089

OESA-2025-1051

Affected Products

Gnulib

References · 24

• 🔥 https://lists.gnu.org/archive/html/bug-gnulib/2018-09/msg00107.html · Exploit
• 🔥 https://savannah.gnu.org/bugs/?func=detailitem&item_id=54686 · Exploit
• https://github.com/coreutils/gnulib/commit/278b4175c9d7dd47c1a3071554aac02add3b3c35 · Patch
• https://lists.fedoraproject.org/archives/list/[e-mail]/thread/4ZP6L5HXDOVKYTM5ELLYE64H75MT4LZR · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2022-2089 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TMGHTVYH3KAFN34QXNSGEQDSTV7MCOQW · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-17942 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2025-1051 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2022-1558 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-17942 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2018-17942 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A5UQRNQE6XHMD5UYYHAU3VQWAYHIPMQS · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2018-17942 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2018-17942 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2019-0022.html · Security Note