Jhead
CVE-2021-3496
HIGH
Severity by source
AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Lifecycle Timeline
1DescriptionNVD
A heap-based buffer overflow was found in jhead in version 3.06 in Get16u() in exif.c when processing a crafted file.
AnalysisAI
A heap-based buffer overflow was found in jhead in version 3.06 in Get16u() in exif.c when processing a crafted file. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
Technical ContextAI
This vulnerability is classified as Buffer Overflow (CWE-119), which allows attackers to corrupt memory to execute arbitrary code or crash the application. A heap-based buffer overflow was found in jhead in version 3.06 in Get16u() in exif.c when processing a crafted file. Affected products include: Jhead Project Jhead. Version information: version 3.06.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Use memory-safe languages or bounds-checking. Enable ASLR, DEP/NX, stack canaries. Use safe string functions.
Jhead 3.06.0.1 allows attackers to execute arbitrary OS commands by placing them in a JPEG filename and then using the r
The ProcessGpsInfo function of the gpsinfo.c file of jhead 3.00 may allow a remote attacker to cause a denial-of-service
The ProcessGpsInfo function of the gpsinfo.c file of jhead 3.00 may allow a remote attacker to cause a denial-of-service
jhead through 3.04 has a heap-based buffer over-read in Get32s when called from ProcessGpsInfo in gpsinfo.c. Rated high
jhead through 3.04 has a heap-based buffer over-read in process_DQT in jpgqguess.c. Rated high severity (CVSS 7.1), this
jhead 3.03 is affected by: heap-based buffer over-read. Rated medium severity (CVSS 5.5), this vulnerability is no authe
jhead 3.03 is affected by: Incorrect Access Control. Rated medium severity (CVSS 5.5), this vulnerability is no authenti
jhead 3.03 is affected by: Buffer Overflow. Rated medium severity (CVSS 5.5), this vulnerability is no authentication re
An integer underflow bug in the process_EXIF function of the exif.c file of jhead 3.00 raises a heap-based buffer over-r
jhead v3.08 was discovered to contain a heap-use-after-free via the ProcessFile function at jhead.c. Rated high severity
Same weakness CWE-119 – Buffer Overflow
View allSame technique Buffer Overflow
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External POC / Exploit Code
Leaving vuln.today