Vulnerability in GNU Libtasn1
CVE-2018-6003
An issue was discovered in the _asn1_decode_simple_ber function in decoding.c in GNU Libtasn1 before 4.13. Unlimited recursion in the BER decoder leads to stack exhaustion and DoS.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.028 (86.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 86.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.028 · newest: 0.028 · change: 0.000
Affected products
- GNU Libtasn1
- Debian Linux — versions 9.0
- Fedoraproject Fedora — versions 26, 27
Weakness classification (CWE)
Public proof-of-concept exploits
References
- gitlab.com/gnutls/libtasn1/commit/946565d8eb05fbf7970ea366e817581bb5a90910 (Third Party Advisory)
- bugzilla.suse.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
- www.debian.org/security/2018/dsa-4106 (vendor-advisory, Third Party Advisory)
- git.savannah.nongnu.org/cgit/libtasn1.git/commit/ (Patch, Vendor Advisory)
- lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a4508… (mailing-list)
- lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698… (mailing-list)
Frequently asked questions
- What is CVE-2018-6003?
- CVE-2018-6003 is a high-severity vulnerability in GNU Libtasn1, classified under Uncontrolled Recursion. CVSS score: 7.5/10. Published 2018-01-22.
- How severe is CVE-2018-6003?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2018-6003 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.