Out-of-bounds Read in C-ares
CVE-2024-25629
c-ares is a C library for asynchronous DNS requests. `ares__read_line()` is used to parse local configuration files such as `/etc/resolv.conf`, `/etc/nsswitch.conf`, the `HOSTALIASES` file, and if using a c-ares version prior to 1.27.0, th…
EPSS: 0.003 (27.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H.
Affected products
- C-ares — versions < 1.27.0
- Fedoraproject Fedora — versions 38, 39, 40
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Mailing List)
- security-advisories@github.com (Mailing List)
- security-advisories@github.com (Mailing List)
Frequently asked questions
- What is CVE-2024-25629?
- CVE-2024-25629 is a medium-severity vulnerability in C-ares, classified under Buffer Under-read. CVSS score: 4.4/10. Published 2024-02-23.
- How severe is CVE-2024-25629?
- Medium severity. CVSS v3 base score is 4.4 out of 10.
- Is CVE-2024-25629 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.