High severity · published Dec 11, 2023
CVE-2023-49355
decToString in decNumber/decNumber.c in jq 88f01a7 has a one-byte out-of-bounds write via the " []-1.2e-1111111111" input
7.5
CVSS
1.2%
EPSS
No
On KEV
Description
decToString in decNumber/decNumber.c in jq 88f01a7 has a one-byte out-of-bounds write via the " []-1.2e-1111111111" input. NOTE: this is not the same as CVE-2023-50246. The CVE-2023-50246 71c2ab5 reference mentions -10E-1000010001, which is not in normalized scientific notation.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.2% · higher than 67% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
JQ
JQ · Jqlang
1.7-37-g88f01a7 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-49355
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-49355
Product
https://github.com/jqlang/jq/blob/88f01a741c8d63c4d1b5bc3ef61520c6eb93edaa/src/decNumber/decNumber.c#L3764
Patch
https://github.com/jqlang/jq/tree/88f01a741c8d63c4d1b5bc3ef61520c6eb93edaa
Exploit
https://github.com/linzc21/bug-reports/blob/main/reports/jq/1.7-37-g88f01a7/heap-buffer-overflow/CVE-2023-49355.md
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