CVE catalog

CVE-2017-17426

glibc: CVE-2017-17426

Severity: High · CVSS 8.1CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: Oct 31, 2017, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 1.60% · Oct 27, 2026

The malloc function in the GNU C Library (aka glibc or libc6) 2.26 could return a memory block that is too small if an attempt is made to allocate an object whose size is close to SIZE_MAX, potentially leading to a subsequent heap overflow. This occurs because the per-thread cache (aka tcache) feature enables a code path that lacks an integer overflow check.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	glibc	sid	`2.43-7`	not affected
Debian	glibc	forky	`2.43-7`	not affected
Debian	glibc	trixie	`2.41-12+deb13u4`	not affected
Debian	glibc	bookworm	`2.36-9+deb12u14`	not affected
Debian	glibc	bookworm-security	`2.36-9+deb12u7`	not affected

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	glibc	source	sid	`Not affected`	unimportant	Not reported	Not reported
Debian	glibc	source	forky	`Not affected`	unimportant	Not reported	Not reported
Debian	glibc	source	trixie	`Not affected`	unimportant	Not reported	Not reported
Debian	glibc	source	bookworm	`Not affected`	unimportant	Not reported	Not reported

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[glibc-doc]Not affected
Source package: [glibc]
Details (4)
- 2.36-9+deb12u14 · all · bookworm
  Not affected
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u14 · all · bookworm
  Not affected
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · all · bookworm-security
  Not affected
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · all · bookworm-security
  Not affected
  dsa · glibc · debian · bookworm
[glibc-source]Not affected
Source package: [glibc]
Details (4)
- 2.36-9+deb12u14 · all · bookworm
  Not affected
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u14 · all · bookworm
  Not affected
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · all · bookworm-security
  Not affected
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · all · bookworm-security
  Not affected
  dsa · glibc · debian · bookworm
[libc6]Not affected
Source package: [glibc]
Details (4)
- 2.36-9+deb12u14 · amd64 · bookworm
  Not affected
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u14 · arm64 · bookworm
  Not affected
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · amd64 · bookworm-security
  Not affected
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · arm64 · bookworm-security
  Not affected
  dsa · glibc · debian · bookworm
[libc6-dbg]Not affected
Source package: [glibc]
Details (4)
- 2.36-9+deb12u14 · amd64 · bookworm
  Not affected
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u14 · arm64 · bookworm
  Not affected
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · amd64 · bookworm-security
  Not affected
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · arm64 · bookworm-security
  Not affected
  dsa · glibc · debian · bookworm
[libc6-dev]Not affected
Source package: [glibc]
Details (4)
- 2.36-9+deb12u14 · amd64 · bookworm
  Not affected
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u14 · arm64 · bookworm
  Not affected
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · amd64 · bookworm-security
  Not affected
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · arm64 · bookworm-security
  Not affected
  dsa · glibc · debian · bookworm
[libc6-dev-i386]Not affected
Source package: [glibc]
Details (2)
- 2.36-9+deb12u14 · amd64 · bookworm
  Not affected
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · amd64 · bookworm-security
  Not affected
  dsa · glibc · debian · bookworm
[libc6-dev-x32]Not affected
Source package: [glibc]
Details (2)
- 2.36-9+deb12u14 · amd64 · bookworm
  Not affected
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · amd64 · bookworm-security
  Not affected
  dsa · glibc · debian · bookworm
[libc6-i386]Not affected
Source package: [glibc]
Details (2)
- 2.36-9+deb12u14 · amd64 · bookworm
  Not affected
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · amd64 · bookworm-security
  Not affected
  dsa · glibc · debian · bookworm
[libc6-x32]Not affected
Source package: [glibc]
Details (2)
- 2.36-9+deb12u14 · amd64 · bookworm
  Not affected
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · amd64 · bookworm-security
  Not affected
  dsa · glibc · debian · bookworm
[libc-bin]Not affected
Source package: [glibc]
Details (4)
- 2.36-9+deb12u14 · amd64 · bookworm
  Not affected
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u14 · arm64 · bookworm
  Not affected
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · amd64 · bookworm-security
  Not affected
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · arm64 · bookworm-security
  Not affected
  dsa · glibc · debian · bookworm
[libc-dev-bin]Not affected
Source package: [glibc]
Details (4)
- 2.36-9+deb12u14 · amd64 · bookworm
  Not affected
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u14 · arm64 · bookworm
  Not affected
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · amd64 · bookworm-security
  Not affected
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · arm64 · bookworm-security
  Not affected
  dsa · glibc · debian · bookworm
[libc-devtools]Not affected
Source package: [glibc]
Details (4)
- 2.36-9+deb12u14 · amd64 · bookworm
  Not affected
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u14 · arm64 · bookworm
  Not affected
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · amd64 · bookworm-security
  Not affected
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · arm64 · bookworm-security
  Not affected
  dsa · glibc · debian · bookworm
[libc-l10n]Not affected
Source package: [glibc]
Details (4)
- 2.36-9+deb12u14 · all · bookworm
  Not affected
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u14 · all · bookworm
  Not affected
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · all · bookworm-security
  Not affected
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · all · bookworm-security
  Not affected
  dsa · glibc · debian · bookworm
[locales]Not affected
Source package: [glibc]
Details (4)
- 2.36-9+deb12u14 · all · bookworm
  Not affected
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u14 · all · bookworm
  Not affected
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · all · bookworm-security
  Not affected
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · all · bookworm-security
  Not affected
  dsa · glibc · debian · bookworm
[locales-all]Not affected
Source package: [glibc]
Details (4)
- 2.36-9+deb12u14 · amd64 · bookworm
  Not affected
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u14 · arm64 · bookworm
  Not affected
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · amd64 · bookworm-security
  Not affected
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · arm64 · bookworm-security
  Not affected
  dsa · glibc · debian · bookworm
[nscd]Not affected
Source package: [glibc]
Details (4)
- 2.36-9+deb12u14 · amd64 · bookworm
  Not affected
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u14 · arm64 · bookworm
  Not affected
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · amd64 · bookworm-security
  Not affected
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · arm64 · bookworm-security
  Not affected
  dsa · glibc · debian · bookworm

Observed: Oct 23, 2026, 5:27:55 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]