CVE-2024-30949: newlib_project newlib Integer Overflow or Wraparound
CVSS: 9.8v3.1CriticalAnalyzed
AliasesUBUNTU-CVE-2024-30949DEBIAN-CVE-2024-30949
Published 20-08-2024Last modified 20-08-2024
Vulnerability summary
CVE-2024-30949 is a critical (CVSS 9.8) Integer Overflow or Wraparound vulnerability in newlib_project newlib. EPSS estimates a 0.76% chance of exploitation in the next 30 days, higher than 54.5% of scored vulnerabilities.
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)EPSS score
0.76%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 20-08-2024PublishedVulnerability first disclosed.
- 20-08-2024Last modifiedVulnerability information updated.
Description
An issue in newlib v.4.3.0 allows an attacker to execute arbitrary code via the time unit scaling in the _gettimeofday function.
CVSS metrics
4 scores · 4 sources · 1 versionCritical 9.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesAll 4 agree
- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- NVDNIST9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.76%
Chance of exploitation in the next 30 days
Percentile
55%
Versus all other CVEs
30-day change
0.00 pp
From 0.76% on 19-09-2026
19-09-202619-10-2026
EPSS score0.76%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-190Integer Overflow or WraparoundThe product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
- CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.
Affected systems
Debian1 product
- newlibAll versions (No fix recorded) | < 4.4.0.20231231-2
Newlib_project1 product
- newlib4.3.0
Ubuntu1 product
- newlibAll versions (No fix recorded)
3 vendors · 3 products
