CVE-2012-1577 json
lib/libc/stdlib/random.c in OpenBSD returns 0 when seeded with 0.
published 2019-12-10 6 y ago modified 2026-06-16 4 mo ago also EUVD-2012-1594
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.6%
- EPSS 1.6% chance of exploitation in 30 days, percentile 75%
- public exploits
- 0
- none known
Summary
lib/libc/stdlib/random.c in OpenBSD returns 0 when seeded with 0.
Patch / fix
- dietlibc Debian 14, Debian 13, Debian 12 0.33~cvs20120325-1
debian advisories DEBIAN-CVE-2012-1577
Exploit prediction
1.55% chance of exploitation in the next 30 days, higher than 75% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Affected products
- dietlibc dietlibc
Classification
- Weakness
-
- CWE-335 Incorrect Usage of Seeds in Pseudo-Random Number Generator (PRNG)
References
-
cvsweb.openbsd.org
/cgi-bin/cvsweb/src/lib/libc/stdlib/random.c#rev1.16
vendor-advisory
-
security-tracker.debian.org
/tracker/CVE-2012-1577
third-party-advisory
-
openwall.com
/lists/oss-security/2012/03/23/14
mailing-list, third-party-advisory
-
github.com
/ensc/dietlibc/blob/master/CHANGES
third-party-advisory
Sources
- CVE List CVE-2012-1577
- NVD CVE-2012-1577
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.