CVE-2018-17942

HIGH8.8

The convert_to_decimal function in vasnprintf

Published Oct 3, 2018

Modified 1 years ago

Details

The convert_to_decimal function in vasnprintf.c in Gnulib before 2018-09-23 has a heap-based buffer overflow because memory is not allocated for a trailing '\0' character during %f processing.

References

WEB

https://github.com/coreutils/gnulib/commit/278b4175c9d7dd47c1a3071554aac02add3b3c35

ADVISORY

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A5UQRNQE6XHMD5UYYHAU3VQWAYHIPMQS/

ADVISORY

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TMGHTVYH3KAFN34QXNSGEQDSTV7MCOQW/

WEB

https://lists.gnu.org/archive/html/bug-gnulib/2018-09/msg00107.html

WEB

https://savannah.gnu.org/bugs/?func=detailitem&item_id=54686

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2018-17942

CVSS Analysis

CVSS v3.0

8.8

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

LowAC:L

Privileges Required

NonePR:N

User Interaction

RequiredUI:R

Scope

UnchangedS:U

Impact

Confidentiality

HighC:H

Integrity

HighI:H

Availability

HighA:H

8.8/CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Ecosystems

Timeline

PublishedOct 3, 2018

ModifiedAug 5, 2024