Vulnerability Details : CVE-2018-11490
The DGifDecompressLine function in dgif_lib.c in GIFLIB (possibly version 3.0.x), as later shipped in cgif.c in sam2p 0.49.4, has a heap-based buffer overflow because a certain "Private->RunningCode - 2" array index is not checked. This will lead to a denial of service or possibly unspecified other impact.
Vulnerability category: OverflowMemory CorruptionDenial of service
Products affected by CVE-2018-11490
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
- cpe:2.3:a:giflib_project:giflib:*:*:*:*:*:*:*:*
- cpe:2.3:a:sam2p_project:sam2p:0.49.4:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-11490
0.22%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 45 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-11490
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P |
8.6
|
6.4
|
NIST | |
|
8.8
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST |
CWE ids for CVE-2018-11490
-
The product uses untrusted input when calculating or using an array index, but the product does not validate or incorrectly validates the index to ensure the index references a valid position within the array.Assigned by: nvd@nist.gov (Primary)
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-11490
-
https://usn.ubuntu.com/4107-1/
USN-4107-1: GIFLIB vulnerabilities | Ubuntu security noticesThird Party Advisory
-
https://lists.debian.org/debian-lts-announce/2022/12/msg00008.html
[SECURITY] [DLA 3223-1] giflib security updateMailing List;Third Party Advisory
-
http://www.securityfocus.com/bid/104327
giflib CVE-2018-11490 Local Heap Based Buffer Overflow VulnerabilityThird Party Advisory;VDB Entry
-
https://github.com/pts/sam2p/issues/38
Heap Buffer Overflow-2 in function DGifDecompressLine() in cgif.c · Issue #38 · pts/sam2p · GitHubThird Party Advisory
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