CVE-2017-6891: apache bookkeeper Out-of-bounds Write
Vulnerability summary
CVE-2017-6891 is a high (CVSS 8.8) Out-of-bounds Write vulnerability in apache bookkeeper. EPSS estimates a 5.58% chance of exploitation in the next 30 days, higher than 92.9% of scored vulnerabilities.
Not severe (CVSS 8.8, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 3 · Related 3Timeline
- 22-05-2017PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
Two errors in the "asn1_find_node()" function (lib/parser_aux.c) within GnuTLS libtasn1 version 4.10 can be exploited to cause a stacked-based buffer overflow by tricking a user into processing a specially crafted assignments file via the e.g. asn1Coding utility.
CVSS metrics
6 scores · 4 sources · 3 versions- OSV · AlpineEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- OSV · UbuntuEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS trend
Probability
5.58%
Chance of exploitation in the next 30 days
Percentile
93%
Versus all other CVEs
30-day change
No change 0.00 pp
From 5.58% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.
Debian3 products
- libtasn1-3< 2.13-2+deb7u4
- libtasn1-6< 4.10-1.1 | < 4.2-3+deb8u3
- debian_linuxEOL8.0
Alpine1 product
- libtasn1< 4.7-r2 | < 4.8-r1 | < 4.9-r1 | < 4.10-r1
Apache1 product
- bookkeeper4.12.1
Flexera software llc1 product
- gnutls libtasn14.10. Other versions may also be affected.
Gnu1 product
- libtasn14.10
Mageia1 product
- libtasn1< 4.2-4.2.mga5
Ubuntu1 product
- libtasn1-6< 3.4-3ubuntu0.5 | < 4.7-3ubuntu0.16.04.2
7 vendors · 9 products
References
19 links
- secuniaresearch.flexerasoftware.com/secunia_research/2017-11/X Refsource MISCPatchThird Party AdvisoryREPORT
- lists.opensuse.org/opensuse-security-announce/2019-06/msg00018.htmlVendor AdvisoryX Refsource SUSEBroken Link