giflib 3.0.x dgif_lib.c DGifDecompressLine memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.5$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in giflib 3.0.x. This affects the function DGifDecompressLine in the library dgif_lib.c. Executing a manipulation can lead to memory corruption. This vulnerability is tracked as CVE-2018-11490. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability classified as critical was found in giflib 3.0.x. This vulnerability affects the function DGifDecompressLine in the library dgif_lib.c. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The bug was discovered 05/24/2018. The weakness was disclosed 05/26/2018 (Website). The advisory is shared for download at securityfocus.com. This vulnerability was named CVE-2018-11490 since 05/26/2018. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 2 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 104327†). The entry VDB-118251 is pretty similar. Once again VulDB remains the best source for vulnerability data.

Affected

  • GIFLIB 3.0.x
  • sam2p 0.49.4

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.6

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

05/23/2018 🔍
05/24/2018 +1 days 🔍
05/26/2018 +1 days 🔍
05/26/2018 +0 days 🔍
05/26/2018 +0 days 🔍
05/27/2018 +1 days 🔍
03/17/2023 +1755 days 🔍

Sourcesinfo

Advisory: 38⛔
Status: Not defined

CVE: CVE-2018-11490 (🔍)
GCVE (CVE): GCVE-0-2018-11490
GCVE (VulDB): GCVE-100-118252
SecurityFocus: 104327 - giflib CVE-2018-11490 Local Heap Based Buffer Overflow Vulnerability

See also: 🔍

Entryinfo

Created: 05/27/2018 11:21
Updated: 03/17/2023 10:49
Changes: 05/27/2018 11:21 (60), 02/09/2020 08:36 (3), 03/17/2023 10:43 (3), 03/17/2023 10:49 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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